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Daikin RXS60F3V1B [81/141] Low voltage detection or over voltage detection
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SiBE041011_A Troubleshooting
Service Diagnosis 71
4.7 Low-voltage Detection or Over-voltage Detection
Error Code
U2
Method of Error
Detection
Low-voltage detection:
An abnormal voltage drop is detected by the DC voltage detection circuit.
Over-voltage detection:
An abnormal voltage rise is detected by the over-voltage detection circuit.
Error Decision
Conditions
Low-voltage detection:
The voltage detected by the DC voltage detection circuit is below 150 ~ 200 V (depending on
the model).
The compressor stops if the error occurs, and restarts automatically after 3-minute standby.
Over-voltage detection:
An over-voltage signal is fed from the over-voltage detection circuit to the microcomputer.
The compressor stops if the error occurs, and restarts automatically after 3-minute standby.
Supposed
Causes
Power supply voltage is not as specified.
Defective DC voltage detection circuit
Defective over-voltage detection circuit
Defective PAM control part
Disconnection of compressor harness
Short circuit inside the fan motor winding
Noise
Momentary fall of voltage
Momentary power failure
Содержание
- Inverter pair 1
- Manual 1
- Service 1
- Sibe041011_a 1
- Wall mounted type g series 1
- Cooling only 2
- Heat pump 2
- Indoor unit 2
- Inverter pair wall mounted type g series 2
- Outdoor unit 2
- Function of thermistor 8 3 control specification 9 3
- Functions 3
- Indoor unit 0 2 outdoor unit 2 3
- Introduction v 3
- Main functions 7 3
- Part 1 list of functions 3
- Part 2 specifications 3
- Part 3 printed circuit board connector wiring diagram 3
- Part 4 function and control 6 3
- Specifications 3
- Table of contents 3
- Check 02 4
- Ftxs60 71gv1b 4 4
- Part 5 remote controller 3 4
- Part 6 service diagnosis 6 4
- Problem symptoms and measures 9 3 service check function 0 4 troubleshooting 3 4
- Troubleshooting with led 8 4
- Part 7 trial operation and field settings 12 5
- Part 8 appendix 20 5
- Piping diagrams 21 5
- Pump down operation 13 2 forced cooling operation 14 3 trial operation 15 4 field settings 16 5
- Removal procedure booklet no 29 5
- Silicon grease on power transistor diode bridge 19 5
- Wiring diagrams 25 5
- Cautions regarding safety of workers 6
- Introduction 6
- Safety cautions 6
- Warning 6
- Caution 7
- Warning 7
- Cautions regarding safety of users 8
- Warning 8
- Caution 9
- Warning 9
- Caution 10
- Icons are used to attract the attention of the reader to specific information the meaning of each icon is described in the table below 10
- Used icons 10
- Functions 11
- Part 1 list of functions 11
- Cooling only 12
- Functions 12
- Functions sibe041011_a 12
- Holding functions no functions 12
- List of functions 12
- Heat pump 13
- Holding functions no functions 13
- List of functions 3 13
- Sibe041011_a functions 13
- Functions sibe041011_a 14
- Holding functions no functions 14
- List of functions 14
- Part 2 specifications 15
- Specifications 15
- Cooling only 16
- Hz 220 230 240 v 16
- Specifications 16
- Specifications sibe041011_a 16
- Heat pump 17
- Hz 220 230 240 v 17
- Sibe041011_a specifications 17
- Specifications 7 17
- Hz 220 230 240 v 18
- Specifications 18
- Specifications sibe041011_a 18
- Indoor unit 0 2 outdoor unit 2 19
- Part 3 printed circuit board connector wiring diagram 19
- Indoor unit 20
- Outdoor unit 22
- Rk x s60f3v1b 71 class 22
- Pcb 2 service monitor pcb 23
- Printed circuit board connector wiring diagram 13 23
- S52 s102 connector for main pcb 2 led a led for service monitor green 3 sw1 forced cooling operation on off button refer to page 114 for detail 4 sw4 b switch for facility setting refer to page 117 for detail 5 sw4 c switch for improvement of defrost performance refer to page 118 for detail 23
- Sibe041011_a outdoor unit 23
- Sw4 a has no function keep it off 23
- Rxs60f4v1b 24
- Function of thermistor 8 3 control specification 9 26
- Main functions 7 26
- Part 4 function and control 26
- Frequency principle 27
- Main functions 27
- Temperature control 27
- Comfortable air conditioning a fine adjustment is integrated to keep the room temperature constant 28
- Drawing of inverter the following drawing shows a schematic view of the inverter principle 28
- Energy saving heating and cooling once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power 28
- Even during extreme cold weather high capacity is achieved it is maintained even when the outdoor temperature is 2 c 28
- Forced cooling operation refer to page 114 for detail 28
- Frequency limits the following functions regulate the minimum and maximum frequency 28
- Inverter features the inverter provides the following features 28
- Quick heating and quick cooling the compressor rotational speed is increased when starting the heating or cooling this enables to reach the set temperature quickly 28
- The regulating capacity can be changed according to the changes in the outdoor temperature and cooling heating load 28
- Airflow direction control 29
- Fan speed control for indoor unit 30
- Detail the microcomputer automatically sets the temperature and airflow rate the difference between the room thermistor temperature at start up and the target temperature is divided into two zones then the unit operates in an appropriate capacity for each zone to maintain the temperature and humidity at a comfortable level 31
- Outline program dry operation removes humidity while preventing the room temperature from lowering since the microcomputer controls both the temperature and airflow rate the temperature adjustment and fan setting buttons are inoperable 31
- Program dry operation 31
- Y 0 ºc 31
- Zone a thermostat off 31
- Zone b zone b 31
- Zone c thermostat on 31
- Automatic operation 32
- Detail thermostat off condition 33
- Function and control 23 33
- Outline thermostat control is based on the difference between the room thermistor temperature and the target temperature 33
- Refer to temperature control on page 17 for detail 33
- Sibe041011_a main functions 33
- The monitoring time has passed while the temperature difference is in the zone b cooling dry 10 minutes heating 10 seconds 33
- The operation turns on in any zones except a 33
- The system resumes from defrost control in any zones except a 33
- The temperature difference is in the zone a 33
- The temperature difference returns to the zone c after being in the zone a 33
- Thermostat control 33
- Thermostat on condition 33
- Detail the night set mode continues operation at the target temperature for the first one hour then automatically raises the target temperature slightly in the case of cooling or lowers it slightly in the case of heating this prevents excessive cooling in summer and excessive heating in winter to ensure comfortable sleeping conditions and also conserves electricity 34
- Function and control 34
- Main functions sibe041011_a 34
- Night set mode 34
- Outline when the off timer is set the night set mode is automatically activated the night set mode keeps the airflow rate setting 34
- Econo operation 35
- Detail 1 detection method by intelligent eye 36
- For dry operation you cannot set the temperature with a remote controller but the target temperature is shifted internally 36
- Function and control 36
- In fan operation the fan speed is reduced by 60 rpm 36
- Intelligent eye operation 36
- Main functions sibe041011_a 36
- Others 36
- Outline this function detects the existence of humans in the room with a motion sensor intelligent eye and reduces the capacity when there is nobody in the room in order to save electricity 36
- The microcomputer in the indoor unit carries out a sampling every 20 msec and if it detects 10 cycles of the wave in 1 second in total corresponding to 20 msec 10 200 msec it judges humans are in the room as the motion signal is on 36
- The motions for example in cooling 36
- The sensor detects human motion by receiving infrared rays and displays the pulse wave output 36
- When the microcomputer does not have a signal from the sensor in 20 minutes it judges that nobody is in the room and operates the unit at a temperature shifted from the target temperature cooling dry 2 c higher heating 2 c lower automatic according to the operation mode at that time 36
- 50 90 rpm depending on the model 37
- Detail when the powerful button is pressed the fan speed and target temperature are converted to the following states for 20 minutes 37
- Ex powerful operation in cooling 37
- Inverter powerful operation 37
- Outline in order to exploit the cooling and heating capacity to full extent operate the air conditioner by increasing the indoor fan rotating speed and the compressor frequency 37
- Clock setting 38
- Example 39
- Function and control 29 39
- Program 1 program 2 program 3 program 4 39
- Sibe041011_a main functions 39
- The same timer settings are made for the week from monday through friday while different timer settings are made for the weekend 39
- Using in these cases of weekly timer 39
- Weekly timer operation 39
- C 27 c 40
- Monday 40
- Press to select the desired day of the 40
- Press to select the desired mode 40
- Setting mode 40
- To use weekly timer operation 40
- Week and reservation number 40
- Press to complete the setting 41
- Press to select the desired 41
- Press to select the desired time 41
- Temperature 41
- Day and number on off time temperature 42
- Setting displays 42
- A reservation made once can be copied another day of the week the whole reservation of the selected day of the week will be copied 43
- C 27 c 43
- Copy mode 43
- Function and control 33 43
- Monday 43
- Press to activate copy mode 43
- Press to confirm the day of the week 43
- Press to select the destination day of 43
- Sibe041011_a main functions 43
- The week 43
- The whole reservation of the selected day of the week will be copied 43
- To be copied 43
- Tuesday to friday 43
- Confirmation copy paste normal 44
- Press to complete the setting 44
- Setting displays 44
- Confirming a reservation 45
- Normal confirmation 45
- Press to exit confirming mode 45
- Press to select the day of the week and 45
- Press while is displayed on the lcd 45
- Setting displays 45
- The reservation number to be confirmed 45
- To deactivate weekly timer operation 45
- All reservations 46
- Hold for 5 seconds 46
- Hold for 5 seconds while normal display 46
- Select the day of the week to be canceled 46
- The individual reservation 46
- The reservations for each day of the week 46
- To delete reservations 46
- Auto restart function 47
- Hot start function 47
- Indoor unit on off button 47
- Other functions 47
- Signal receiving sign 47
- Titanium apatite photocatalytic air purifying filter 47
- Function of thermistor 48
- Control specification 49
- Detail cooling only model 49
- Function and control 39 49
- Heat pump model 49
- Mode hierarchy 49
- Note unless specified otherwise a dry operation command is regarded as cooling operation 49
- Outline air conditioner control has normal operation mode forced operation mode and power transistor test mode for installation and servicing 49
- Sibe041011_a control specification 49
- Frequency control 50
- Determine lower limit frequency 51
- Determine prohibited frequency 51
- Determine upper limit frequency 51
- For limiting lower limit frequency management is carried out only when the frequency rises 51
- Frequency management when other controls are functioning 51
- I control if the operating frequency does not change for more than a certain fixed time the frequency is adjusted according to the d value when the d value is low the frequency is lowered when the d value is high the frequency is increased 51
- Indoor frequency command d signal the difference between the room thermistor temperature and the target temperature is taken as the d signal and is used for frequency command 51
- Pi control determine frequency up down by d signal 1 p control the d value is calculated in each sampling time 15 20 seconds and the frequency is adjusted according to its difference from the frequency previously calculated 51
- Th off thermostat off 51
- The maximum value is set as a lower limit frequency among the frequency lower limits of the following functions four way valve operation compensation draft prevention pressure difference upkeep 51
- The minimum value is set as an upper limit frequency among the frequency upper limits of the following functions compressor protection input current discharge pipe temperature heating peak cut freeze up protection defrost 51
- There is a certain prohibited frequency such as a power supply frequency 51
- Upper and lower limit of frequency by pi control the frequency upper and lower limits are set according to the command of the indoor unit when the indoor or outdoor unit quiet operation command comes from the indoor unit the upper limit frequency is lower than the usual setting 51
- When frequency is dropping frequency management is carried out only when the frequency drops 51
- When starting the compressor the frequency is initialized according to the d value and the q value of the indoor unit q value indoor unit output determined from indoor unit volume airflow rate and other factors 51
- Controls at mode changing start up 52
- Four way valve switching 52
- Preheating control 52
- 3 minute standby 53
- Compressor protection function 53
- Detail starting conditions 1 when the compressor starts and the four way valve switches from off to on 2 when the four way valve switches from on to off during operation 3 when the compressor starts after resetting 4 when the compressor starts after the fault of four way valve switching the lower limit of frequency keeps a hz for b seconds with any conditions 1 through 4 above 53
- Four way valve operation compensation 53
- Outline at the beginning of the operation as the four way valve is switched the pressure difference to activate the four way valve is acquired by having output frequency which is more than a certain fixed frequency for a certain fixed time 53
- Turning on the compressor is prohibited for 3 minutes after turning it off except when defrosting 53
- When turning the compressor from off to on the upper limit of frequency is set as follows the function is not activated when defrosting 53
- Detail 54
- Discharge pipe temperature control 54
- Outline the discharge pipe temperature is used as the internal temperature of the compressor if the discharge pipe temperature rises above a certain level the upper limit of frequency is set to keep the discharge pipe temperature from rising further 54
- After 2 seconds in this zone the compressor is stopped dropping zone 55
- After this the output frequency is lowered by 2 hz every second until it reaches the keep zone keep zone 55
- Detail 55
- Frequency control in each zone stop zone 55
- Input current control 55
- Limit of the frequency is canceled 55
- Limitation of current dropping and stop value according to the outdoor temperature 55
- Outline the microcomputer calculates the input current while the compressor is running and sets the frequency upper limit from the input current in case of heat pump models this control which is the upper limit control of the frequency takes priority over the lower limit of control of four way valve operation compensation 55
- The current drops when outdoor temperature becomes higher than a certain level depending on the model 55
- The present maximum frequency goes on reset zone 55
- The upper limit of the compressor frequency is defined as operation frequency 2 hz 55
- Detail 56
- Detail the operating frequency limitation is judged with the indoor heat exchanger temperature 56
- Freeze up protection control 56
- Heating peak cut control 56
- Outline during cooling operation the signal sent from the indoor unit controls the operating frequency limitation and prevents freezing of the indoor heat exchanger the signal from the indoor unit is divided into zones 56
- Outline during heating operation the indoor heat exchanger temperature determines the frequency upper limit to prevent abnormal high pressure 56
- Liquid compression protection function 57
- Outdoor fan control 57
- Conditions for canceling defrost the judgment is made with the outdoor heat exchanger temperature b c 58
- Defrost control 58
- Detail conditions for starting defrost 58
- More than a minutes of accumulated time have passed since the start of the operation or ending the previous defrosting 58
- Outline defrosting is carried out by the cooling cycle reverse cycle the defrosting time or outdoor heat exchanger temperature must be more than a certain value to finish 58
- The compressor operates for 6 minutes 58
- The starting conditions are determined with the outdoor temperature and the outdoor heat exchanger temperature 58
- The system is in heating operation 58
- Detail the followings are the examples of electronic expansion valve control which function in each operation mode 59
- Electronic expansion valve control 59
- Function and control 49 59
- H holding functions no functions 59
- Outline the following items are included in the electronic expansion valve control electronic expansion valve is fully closed 1 electronic expansion valve is fully closed when turning on the power 2 pressure equalizing control open control 1 electronic expansion valve control when starting operation 2 electronic expansion valve control when the frequency changes 3 electronic expansion valve control for defrosting 4 electronic expansion valve control when the discharge pipe temperature is abnormally high 5 electronic expansion valve control when the discharge pipe thermistor is disconnected feedback control target discharge pipe temperature control 59
- Sibe041011_a control specification 59
- Control when the frequency changes 60
- Fully closing with power on 60
- High discharge pipe temperature control 60
- Opening limit control 60
- Pressure equalizing control 60
- Starting operation control 60
- Control for disconnection of the discharge pipe thermistor 61
- Target discharge pipe temperature control 61
- Detection of overcurrent and overload 62
- Malfunctions 62
- Refrigerant shortage control 62
- Sensor malfunction detection 62
- Ftxs60 71gv1b 4 63
- Part 5 remote controller 63
- 1 powerful operation p 7 2 model type setting p 16 64
- Button 64
- Display lcd 64
- Fan setting button 64
- Ftxs60 71gv1b 64
- Ftxs60 71gv1b sibe041011_a 64
- Note refer to the operation manual of applicable model for detail you can download operation manual from distributor s page distributor s page product information operation installation manual url http global daikin com daikin global distributors_admin user_mng login php 64
- On off button 64
- Powerfu 64
- Reference refer to the following pages for detail 64
- Remote controller 64
- Signal transmitter 64
- Temperature adjustment buttons 64
- The remote controller is compatible with both cooling only and heat pump model 64
- Button 65
- Comfor 65
- Mode button 65
- Off timer button 65
- On timer button 65
- Open the front cover 65
- Quiet button 65
- Select button 65
- Timer cancel button 65
- Weekly button 65
- Check 02 66
- Part 6 service diagnosis 66
- Problem symptoms and measures 9 3 service check function 0 4 troubleshooting 3 66
- Troubleshooting with led 8 66
- Capacitor voltage check 10 5 4 power module check 10 67
- Indoor unit 68
- Outdoor unit 68
- Troubleshooting with led 68
- Problem symptoms and measures 69
- Check method 1 1 when the timer cancel button is held down for 5 seconds 70
- Is displayed on the temperature display screen 70
- Note 1 a short beep or two consecutive beeps indicate non corresponding codes 2 to return to the normal mode hold the timer cancel button down for 5 seconds when the remote controller is left untouched for 60 seconds it also returns to the normal mode 3 not all the error codes are displayed when you cannot find the error code try the check method 2 refer to page 61 70
- Press the timer cancel button repeatedly until a long beep sounds 70
- Service check function 70
- The code indication changes in the sequence shown below 70
- Displayed only when system down occurs 73
- Error codes and description 73
- Troubleshooting 73
- Defective indoor unit pcb 74
- Disconnection of connector 74
- Error code 74
- Error decision conditions the system cannot set the internal settings 74
- Indoor unit pcb abnormality 74
- Method of error detection the system checks if the circuit works properly within the microcomputer of the indoor unit 74
- Note check the following connector 74
- Reduction of power supply voltage 74
- Supposed causes 74
- Troubleshooting 74
- Wrong models interconnected 74
- Check no 1 refer to p 02 75
- Clogged air filter of the indoor unit 75
- Defective indoor heat exchanger thermistor 75
- Defective indoor unit pcb 75
- Dust accumulation on the indoor heat exchanger 75
- Error code 75
- Error decision conditions 75
- Freeze up protection control during cooling operation the freeze up protection control operation halt is activated according to the temperature detected by the indoor heat exchanger thermistor 75
- Freeze up protection control during cooling operation the indoor heat exchanger temperature is below 0 c 75
- Freeze up protection control or heating peak cut control 75
- Heating peak cut control during heating operation the indoor heat exchanger temperature is above 65 c 75
- Heating peak cut control during heating operation the temperature detected by the indoor heat exchanger thermistor is used for the heating peak cut control operation halt outdoor fan stop etc 75
- Method of error detection 75
- Short circuited air 75
- Supposed causes 75
- Troubleshooting 75
- Fan motor dc motor or related abnormality 76
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 77
- Caution 77
- Check no 2 refer to p 03 77
- Service diagnosis 67 77
- Sibe041011_a troubleshooting 77
- Troubleshooting 77
- Thermistor or related abnormality indoor unit 78
- Refrigerant shortage 79
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 80
- Caution 80
- Check no 1 refer to p 02 80
- Check no 2 refer to p 04 80
- Service diagnosis 80
- Troubleshooting 80
- Troubleshooting sibe041011_a 80
- Low voltage detection or over voltage detection 81
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 82
- Service diagnosis 82
- Troubleshooting 82
- Troubleshooting sibe041011_a 82
- Signal transmission error between indoor unit and outdoor unit 83
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 84
- Caution 84
- Check no 1 refer to p 03 84
- Service diagnosis 84
- Troubleshooting 84
- Troubleshooting sibe041011_a 84
- Signal transmission error on outdoor unit pcb rk x s60f3v1b 71 class only 85
- Defective indoor unit pcb 86
- Defective outdoor unit pcb 86
- Error code 86
- Error decision conditions the pair type and multi type are interconnected 86
- Method of error detection the supply power is detected for its requirements different from pair type and multi type by the indoor outdoor transmission signal 86
- Supposed causes 86
- Troubleshooting 86
- Unspecified voltage between indoor unit and outdoor unit 86
- Wrong indoor unit pcb or outdoor unit pcb mounted 86
- Wrong models interconnected 86
- Wrong wiring of connecting wires 86
- Outdoor unit pcb abnormality 87
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 88
- Caution 88
- Service diagnosis 88
- Troubleshooting rxs60f4v1b 88
- Troubleshooting sibe041011_a 88
- Ol activation compressor overload 89
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 90
- Caution 90
- Check no 1 refer to p 02 90
- Check no 2 refer to p 04 90
- Check no 3 refer to p 05 90
- Check no 4 refer to p 05 90
- Note ol q1l activating temperature 120 c ol q1l recovery temperature 95 c 90
- Service diagnosis 90
- Troubleshooting 90
- Troubleshooting sibe041011_a 90
- A compressor lock is detected by the current waveform generated when applying high frequency voltage to the motor 91
- Check no 5 refer to p 06 91
- Compressor harness disconnected 91
- Compressor lock 91
- Compressor locked 91
- Error code 91
- Error decision conditions 91
- If the error repeats the system is shut down 91
- Method of error detection a compressor lock is detected by checking the compressor running condition through the position detection circuit 91
- Reset condition continuous run for about 5 minutes without any other error 91
- Supposed causes 91
- Troubleshooting 91
- Check no 6 refer to p 07 92
- Dc fan lock 92
- Defective fan motor 92
- Defective outdoor unit pcb 92
- Disconnection of the fan motor 92
- Error code 92
- Error decision conditions 92
- Foreign matter stuck in the fan 92
- If the error repeats the system is shut down 92
- Method of error detection an error is determined with the high voltage fan motor rotation speed detected by the hall ic 92
- Reset condition continuous run for about 5 minutes without any other error 92
- Supposed causes 92
- The fan does not start in 30 seconds even when the fan motor is running 92
- Troubleshooting 92
- Check no 5 refer to p 06 93
- Check no 7 refer to p 08 93
- Check no 8 refer to p 08 93
- Defective compressor 93
- Defective outdoor unit pcb 93
- Defective power module 93
- Error code 93
- Error decision conditions the current exceeds about 20 a for 2 seconds with the compressor running the upper limit of the current decreases when the outdoor temperature exceeds a certain level 93
- Input overcurrent detection 93
- Method of error detection an input overcurrent is detected by checking the input current value with the compressor running 93
- Outdoor temperature is out of operation range 93
- Short circuit 93
- Supposed causes 93
- Troubleshooting 93
- Four way valve abnormality 94
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 95
- Check no 1 refer to p 02 95
- Check no 3 refer to p 05 95
- Check no 4 refer to p 05 95
- Service diagnosis 85 95
- Sibe041011_a troubleshooting 95
- Troubleshooting 95
- Check no 1 refer to p 02 96
- Check no 2 refer to p 04 96
- Check no 4 refer to p 05 96
- Defective discharge pipe thermistor defective outdoor heat exchanger thermistor or outdoor temperature thermistor 96
- Defective electronic expansion valve or coil 96
- Defective four way valve 96
- Defective outdoor unit pcb 96
- Defective stop valve 96
- Discharge pipe temperature control 96
- Error code 96
- Error decision conditions 96
- If the error repeats the system is shut down 96
- If the temperature detected by the discharge pipe thermistor rises above a c the compressor stops 96
- Method of error detection an error is determined with the temperature detected by the discharge pipe thermistor 96
- Refrigerant shortage 96
- Reset condition continuous run for about 60 minutes without any other error 96
- Supposed causes 96
- The error is cleared when the discharge pipe temperature has dropped below b c 96
- Troubleshooting 96
- Water mixed in refrigerant 96
- Check no 1 refer to p 02 97
- Check no 2 refer to p 04 97
- Check no 7 refer to p 08 97
- Check no 8 refer to p 08 97
- Check no 9 refer to p 09 97
- Defective electronic expansion valve or coil 97
- Defective outdoor fan motor 97
- Defective outdoor heat exchanger thermistor 97
- Defective outdoor unit pcb 97
- Defective stop valve 97
- Dirty outdoor heat exchanger 97
- Error code 97
- Error decision conditions 97
- High pressure control in cooling 97
- Method of error detection high pressure control operation halt frequency drop etc is activated in cooling operation if the temperature sensed by the outdoor heat exchanger thermistor exceeds the limit 97
- Supposed causes 97
- The error is cleared when the temperature drops below about 50 c 97
- The installation space is not large enough 97
- The temperature sensed by the outdoor heat exchanger thermistor rises above about 60 65 c depending on the model 97
- Troubleshooting 97
- Compressor system sensor abnormality 98
- Defective compressor 98
- Defective outdoor unit pcb 98
- Disconnection of compressor harness 98
- Disconnection of reactor 98
- Error code 98
- Error decision conditions 98
- Method of error detection 98
- Rk x s60f3v1b 71 class 98
- Supposed causes 98
- The compressor current does not run when the compressor starts 98
- The power supply voltage and the dc voltage is obviously low or high 98
- The system checks the compressor current right after the compressor starts 98
- The system checks the power supply voltage and the dc voltage before the compressor starts 98
- Troubleshooting 98
- Broken or disconnected harness 99
- Defective outdoor unit pcb 99
- Error code 99
- Error decision conditions 99
- Method of error detection the system checks the dc current before the compressor starts 99
- Rxs60f4v1b 99
- Supposed causes 99
- The dc current before compressor start up is out of the range 0 4 v sensor output converted to voltage value 99
- The dc voltage before compressor start up is below 50 v 99
- Troubleshooting 99
- Position sensor abnormality 100
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 101
- Check no 5 refer to p 06 101
- Check no 8 refer to p 08 101
- Service diagnosis 91 101
- Sibe041011_a troubleshooting 101
- Troubleshooting rk x s60f3v1b 71 class 101
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 102
- Check no 0 refer to p 09 102
- Check no 5 refer to p 06 102
- Check no 8 refer to p 08 102
- Service diagnosis 102
- Troubleshooting rxs60f4v1b 102
- Troubleshooting sibe041011_a 102
- Ct or related abnormality rk x s60f3v1b 71 class only 103
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 104
- Caution 104
- Check no 1 refer to p 10 104
- Check no 5 refer to p 06 104
- Service diagnosis 104
- Troubleshooting 104
- Troubleshooting sibe041011_a 104
- Thermistor or related abnormality outdoor unit 105
- Caution 106
- Check no 1 refer to p 02 106
- Discharge pipe thermistor 106
- Outdoor heat exchanger thermistor 106
- Outdoor temperature thermistor 106
- Service diagnosis 106
- Troubleshooting in case of 106
- Troubleshooting sibe041011_a 106
- Check no 7 refer to p 08 107
- Check no 9 refer to p 09 107
- Defective outdoor fan motor 107
- Defective outdoor unit pcb 107
- Defective radiation fin thermistor 107
- Disconnection of connector 107
- Electrical box temperature rise 107
- Error code 107
- Error decision conditions 107
- Method of error detection an electrical box temperature rise is detected by checking the radiation fin thermistor with the compressor off 107
- Short circuit 107
- Supposed causes 107
- The error is cleared when the radiation fin temperature drops below b c 107
- To cool the electrical components the outdoor fan starts when the radiation fin temperature rises above c c and stops when it drops below b c 107
- Troubleshooting 107
- With the compressor off the radiation fin temperature is above a c 107
- Radiation fin temperature rise 108
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 109
- Caution 109
- Check no 7 refer to p 08 109
- Check no 9 refer to p 09 109
- Class 105 109
- Note refer to silicon grease on power transistor diode bridge on page 119 for detail 109
- Rk x s60f3v1b 105 rxs60f4v1b 85 109
- Service diagnosis 99 109
- Sibe041011_a troubleshooting 109
- Troubleshooting 109
- Output overcurrent detection 110
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 111
- Caution 111
- Check no 2 refer to p 10 111
- Check no 5 refer to p 06 111
- Check no 7 refer to p 08 111
- Check no 8 refer to p 08 111
- Service diagnosis 101 111
- Sibe041011_a troubleshooting 111
- Troubleshooting 111
- Check no 1 disconnect the connectors of the thermistors from the pcb and measure the resistance of each thermistor using tester the relationship between normal temperature and resistance is shown in the table and the graph below 112
- Thermistor resistance check 112
- When the connector of indoor heat exchanger thermistor is soldered on the pcb remove the thermistor and measure the resistance 112
- When the room temperature thermistor is directly mounted on the display pcb remove the display pcb from the control pcb to measure the resistance 112
- Check no 1 measure the power supply waveform between no 1 and no 2 on the terminal board and check the waveform disturbance 113
- Check no 2 1 check the connection of connector 2 check the motor power supply voltage output pins 4 7 3 check the motor control voltage pins 4 3 4 check the rotation command voltage pins 4 2 5 check the rotation pulse pins 4 1 113
- Check to see if the power supply waveform is a sine wave fig 113
- Check to see if there is waveform disturbance near the zero cross sections circled in fig 113
- Fan motor connector output check 113
- Fig fig 113
- Power supply waveforms check 113
- Service diagnosis 103 113
- Sibe041011_a check 113
- Check no 2 conduct the followings to check the electronic expansion valve ev 1 check to see if the ev connector is correctly connected to the pcb 2 turn the power off and on again and check to see if the ev generates a latching sound 3 if the ev does not generate a latching sound in the above step 2 disconnect the connector and check the continuity using a tester 4 check the continuity between the pins 1 6 3 6 2 5 4 5 between the pins 1 6 2 6 3 6 4 6 for the harness 5p models if there is no continuity between the pins the ev coil is faulty 114
- Check sibe041011_a 114
- Electronic expansion valve check 114
- If the continuity is confirmed in step 3 the outdoor unit pcb is faulty 114
- Note please note that the latching sound varies depending on the valve type 114
- Service diagnosis 114
- Check no 3 115
- Check no 4 115
- Four way valve performance check 115
- Inverter units refrigerant system check 115
- Service diagnosis 105 115
- Sibe041011_a check 115
- Inverter analyzer check 116
- Rotation pulse check on the outdoor unit pcb 117
- Check no 7 118
- Check no 8 118
- Check sibe041011_a 118
- Discharge pressure check 118
- Installation condition check 118
- Service diagnosis 118
- Main circuit short check 119
- Outdoor fan system check 119
- Capacitor voltage check 120
- Check no 1 rk x s60f3v1b 71 class only before this check be sure to check the main circuit for short circuit with the circuit breaker still on measure the voltage according to the drawing of the model in question be careful never to touch any live parts 120
- Check no 2 120
- Disconnect the compressor harness connector from the outdoor unit pcb to disengage the connector press the protrusion on the connector 120
- Follow the procedure below to measure resistance between the terminals of the power module and the terminals of the compressor with a multi tester evaluate the measurement results referring to the following table 120
- Note check to make sure that the voltage between and of the power module is approx 0 v before checking 120
- Power module check 120
- Rk x s60f3v1b 71 class 121
- Rxs60f4v1b 121
- Part 7 trial operation and field settings 122
- Pump down operation 13 2 forced cooling operation 14 3 trial operation 15 4 field settings 16 122
- Silicon grease on power transistor diode bridge 19 122
- Class 71 class 123
- Detail 1 remove the valve caps from the liquid stop valve and the gas stop valve 2 carry out forced cooling operation 3 after 5 to 10 minutes close the liquid stop valve with a hexagonal wrench 4 after 2 to 3 minutes close the gas stop valve and stop the forced cooling operation 123
- Outline in order to protect the environment be sure to conduct pump down operation when relocating or disposing the unit 123
- Pump down operation 123
- Refer to page 114 for forced cooling operation 123
- Sibe041011_a pump down operation 123
- Trial operation and field settings 113 123
- Caution when pressing the button do not touch the terminal board it has a high voltage and may cause electric shock 124
- Forced cooling operation 124
- Indoor unit 124
- Outdoor unit rk x s60f3v1b 71 class 124
- Outdoor unit rxs60f4v1b 124
- 2 3 4 1 5 125
- Trial operation 125
- Field settings 126
- Model type setting 126
- When 2 units are installed in 1 room 126
- Facility setting cooling at low outdoor temperature 127
- Caution replace the pcb if you accidentally cut a wrong jumper jumpers are necessary for electronic circuit improper operation may occur if you cut any of them 128
- For the location of the jumper refer to page 10 128
- For the location of the switch jumper refer to page 128
- Indoor unit 128
- Jumper and switch settings 128
- Outdoor unit 128
- Silicon grease on power transistor diode bridge 129
- Part 8 appendix 130
- Piping diagrams 21 130
- Removal procedure booklet no 29 130
- Wiring diagrams 25 130
- Appendix 121 131
- Ftxs60gv1b ftxs71gv1b 131
- Indoor unit 131
- Piping diagrams 131
- Sibe041011_a piping diagrams 131
- Appendix 132
- Cooling only 132
- Outdoor unit 132
- Piping diagrams sibe041011_a 132
- Rks60f3v1b 132
- Rks71fav1b 132
- Appendix 123 133
- Heat pump 133
- Rxs60f3v1b 133
- Rxs60f4v1b 133
- Sibe041011_a piping diagrams 133
- Appendix 134
- Piping diagrams sibe041011_a 134
- Rxs71fav1b rxs71fav1b9 134
- Appendix 125 135
- Ftxs60 71gv1b 135
- Indoor unit 135
- Sibe041011_a wiring diagrams 135
- Wiring diagrams 135
- Appendix 136
- Cooling only 136
- Outdoor unit 136
- Rks60f3v1b 136
- Rks71fav1b 136
- Wiring diagrams sibe041011_a 136
- Appendix 127 137
- D079016 137
- Heat pump 137
- Indoor 137
- Outdoor 137
- Rxs60f3v1b 137
- Rxs60f4v1b 137
- Sibe041011_a wiring diagrams 137
- Appendix 138
- D053931l 138
- Rxs71fav1b rxs71fav1b9 138
- Wiring diagrams sibe041011_a 138
- Refer to the following booklets for removal procedure 139
- Removal procedure booklet no 139
- Revision history 140
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