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Daikin RKS50E3V1B [69/150] Troubleshooting
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SiBE07-618_D Troubleshooting
Service Diagnosis 59
4. Troubleshooting
4.1 Error Codes and Description
★
: Displayed only when system-down occurs.
Error Codes Description
Reference
Page
System
00
Normal —
U0★
Refrigerant shortage 89
U2
Low-voltage detection or over-voltage detection 91
U4
Signal transmission error (between indoor unit and outdoor unit) 65
UA
Unspecified voltage (between indoor unit and outdoor unit) 66
Indoor
Unit
A1
Indoor unit PCB abnormality 60
A5
Freeze-up protection control or heating peak-cut control 61
A6
Fan motor (AC motor) or related abnormality 63
C4
Indoor heat exchanger thermistor or related abnormality 64
C9
Room temperature thermistor or related abnormality 64
Outdoor
Unit
E1
Outdoor unit PCB abnormality 67
E5★
OL activation (compressor overload) 68
E6★
Compressor lock 69
E7
DC fan lock 70
E8
Input overcurrent detection 71
EA
Four way valve abnormality 72
F3
Discharge pipe temperature control 74
F6
High pressure control in cooling 75
H0
Compressor system sensor abnormality 76
H6
Position sensor abnormality 77
H8
CT or related abnormality 79
H9
Outdoor temperature thermistor or related abnormality 81
J3
Discharge pipe thermistor or related abnormality 81
J6
Outdoor heat exchanger thermistor or related abnormality 81
L3
Electrical box temperature rise 83
L4
Radiation fin temperature rise 85
L5
Output overcurrent detection 87
P4
Radiation fin thermistor or related abnormality 81
U7
Signal transmission error (on outdoor unit PCB) 92
Содержание
- Duct connected type c series 1
- Inverter pair 1
- Manual 1
- Service 1
- Sibe07 618_d 1
- Inverter pair duct connected type c series 2
- Table of contents 2
- Function of thermistor 8 3 control specification 9 3
- Functions 3
- Introduction v 3
- Main functions 8 3
- Part 1 list of functions 3
- Part 2 specifications 3
- Part 3 printed circuit board connector wiring diagram 2 3
- Part 4 function and control 7 3
- Part 5 operation manual 2 3
- Printed circuit board connector wiring diagram 3 3
- Specifications 3
- System configuration 3 2 operation manual 4 3
- Caution for diagnosis 4 4
- Check 3 4
- Outdoor unit 03 4
- Part 6 service diagnosis 3 4
- Part 7 removal procedure 02 4
- Problem symptoms and measures 5 3 service check function 6 4 troubleshooting 9 4
- Application of silicon grease to a power transistor and a diode bridge 32 5
- Part 8 trial operation and field settings 26 5
- Part 9 appendix 33 5
- Piping diagrams 34 5
- Pump down operation 27 2 forced cooling operation mode 28 3 trial operation 29 4 field settings 30 5
- Wiring diagrams 36 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
- Functions 12
- Functions sibe07 618_d 12
- Holding functions no functions 12
- List of functions 12
- Holding functions no functions 13
- List of functions 3 13
- Sibe07 618_d functions 13
- Functions sibe07 618_d 14
- Holding functions no functions 14
- List of functions 14
- Part 2 specifications 15
- Specifications 15
- Cooling only 16
- Hz 230 v 16
- Specifications 16
- Specifications sibe07 618_d 16
- Hz 230 v 17
- Sibe07 618_d specifications 17
- Specifications 7 17
- Hz 230 v 18
- Specifications 18
- Specifications sibe07 618_d 18
- Heat pump 19
- Hz 230 v 19
- Sibe07 618_d specifications 19
- Specifications 9 19
- Hz 230 v 20
- Specifications 20
- Specifications sibe07 618_d 20
- Hz 230 v 21
- Sibe07 618_d specifications 21
- Specifications 11 21
- Part 3 printed circuit board connector wiring diagram 22
- Printed circuit board connector wiring diagram 3 22
- Indoor unit 23
- Printed circuit board connector wiring diagram 23
- Pcb 2 display pcb 24
- Pcb detail pcb 1 control pcb 24
- Printed circuit board connector wiring diagram 24
- Printed circuit board connector wiring diagram sibe07 618_d 24
- Outdoor unit 25
- Pcb 2 service monitor pcb 26
- Pcb detail pcb 1 main pcb 26
- Printed circuit board connector wiring diagram 26
- Printed circuit board connector wiring diagram sibe07 618_d 26
- Function of thermistor 8 3 control specification 9 27
- Main functions 8 27
- Part 4 function and control 27
- Frequency principle 28
- Main functions 28
- Temperature control 28
- Comfortable air conditioning a fine adjustment is integrated to keep the room temperature constant 29
- Drawing of inverter the following drawing shows a schematic view of the inverter principle 29
- Energy saving heating and cooling once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power 29
- Even during extreme cold weather the high capacity is achieved it is maintained even when the outdoor temperature is 2 c 29
- Forced cooling operation refer to forced operation mode on page 29
- Frequency limits the following functions regulate the minimum and maximum frequency 29
- Inverter features the inverter provides the following features 29
- 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 29
- The regulating capacity can be changed according to the changes in the outdoor temperature and cooling heating load 29
- Fan speed control for indoor units 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 the dry mode with 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 adjustment buttons are inoperable in this mode 31
- Program dry operation 31
- Zone a thermostat off 31
- Zone b zone b 31
- Zone c thermostat on 31
- Automatic operation 32
- Cooling dry 33
- Function and control 23 33
- Heating 33
- Refer to temperature control on page 18 for detail 33
- Sibe07 618_d 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 control is based on the difference between the room thermistor temperature and the target temperature 33
- Thermostat off condition 33
- Thermostat on condition 33
- Cooling 34
- 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
- Heating 34
- Main functions sibe07 618_d 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
- Home leave operation 35
- Detail when powerful button is pressed the fan speed and target temperature are converted to the following states for 20 minutes 36
- Ex powerful operation in cooling mode 36
- Inverter powerful operation 36
- 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 36
- Auto restart function 37
- Hot start function 37
- Indoor unit on off button 37
- Other functions 37
- Signal receiving sign 37
- Function of thermistor 38
- Control specification 39
- Detail for cooling only model there are following modes stop and cooling including drying 39
- For heat pump model there are following modes stop cooling includes drying heating include defrosting 39
- Function and control 29 39
- Mode hierarchy 39
- Note unless specified otherwise an indoor dry operation command is regarded as cooling operation 39
- Outline there are two modes the one is the normal operation mode and the other is the forced operation mode for installation and providing service 39
- Sibe07 618_d control specification 39
- Frequency control 40
- D signal 1 p control the 41
- D signal and is used for frequency command 41
- D signal the difference between the room thermistor temperature and the target temperature is taken as the 41
- 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 41
- D value is calculated in each sampling time 20 seconds and the frequency is adjusted according to its difference from the frequency previously calculated 41
- D value is large the frequency is increased 41
- D value is small the frequency is lowered when the 41
- D value when the 41
- Determine lower limit frequency 41
- Determine prohibited frequency 41
- Determine upper limit frequency 41
- For limiting lower limit frequency management is carried out only when the frequency rises 41
- Frequency management when other controls are functioning 41
- I control if the operating frequency does not change for more than a certain fixed time the frequency is adjusted according to the 41
- Indoor frequency command 41
- Pi control determine frequency up down by 41
- Th off thermostat off 41
- The maximum value is set as an lower limit frequency among the frequency lower limits of the following functions four way valve operation compensation draft prevention pressure difference upkeep 41
- 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 41
- There is a certain prohibited frequency such as a power supply frequency 41
- Upper and lower limit of frequency by pi control the frequency upper and lower limits are set according to the command on indoor unit when the indoor or outdoor unit quiet operation command comes from the indoor unit the upper limit frequency is lowered than the usual setting 41
- When frequency is drooping frequency management is carried out only when the frequency droops 41
- When starting the compressor the frequency is initialized according to the 41
- Controls at mode changing start up 42
- Four way valve operation compensation 42
- Four way valve switching 42
- Preheating operation 42
- 3 minute standby 43
- Compressor protection function 43
- Detail 43
- Discharge pipe temperature control 43
- 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 this temperature from going up further 43
- Seconds 43
- Turning on the compressor is prohibited for 3 minutes after turning it off except when defrosting 43
- When turning the compressor from off to on the upper limit of frequency is set as follows the function is not activated when defrosting 43
- After 2 seconds in this zone the compressor is stopped drooping zone 44
- After this the output frequency is pulled down by 2 hz every second until it reaches the keep zone keep zone 44
- Detail 44
- Frequency control in each zone stop zone 44
- Input current control 44
- Limit of the frequency is canceled 44
- Limitation of current drooping and stop value according to the outdoor temperature 44
- Outline the microcomputer calculates the input current during the compressor is running and sets the frequency upper limit from the input current in case of heat pump model this control which is the upper limit control of the frequency takes priority to the lower limit of control of four way valve operation compensation 44
- The current droops when outdoor temperature becomes higher than a certain level depending on the model 44
- The present maximum frequency goes on reset zone 44
- The upper limit of the compressor frequency is defined as operation frequency 2 hz 44
- Detail 45
- Detail the operating frequency limitation is judged with the indoor heat exchanger temperature 45
- Freeze up protection control 45
- Heating peak cut control 45
- 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 45
- Outline during heating operation the indoor heat exchanger temperature determines the frequency upper limit to prevent abnormal high pressure 45
- Liquid compression protection function 46
- Outdoor fan control 46
- Conditions for canceling defrost the judgment is made with outdoor heat exchanger temperature 4 c 12 c 47
- Defrost control 47
- Detail conditions for starting defrost 47
- Minutes of accumulated time pass since the start of the operation or ending of the previous defrosting 47
- 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 47
- The compressor operates for 6 minutes 47
- The starting conditions is determined with the outdoor temperature and the outdoor heat exchanger temperature 47
- The system is in heating operation 47
- Control specification sibe07 618_d 48
- Detail the followings are the examples of control which function in each mode by the electronic expansion valve control 48
- Electronic expansion valve control 48
- Function and control 48
- 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 frequency changed 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 1 discharge pipe temperature control 48
- Fully closing with power on 49
- High discharge pipe temperature 49
- Opening limit 49
- Pressure equalization control 49
- Starting operation control 49
- Control when frequency is changed 50
- Disconnection of the discharge pipe thermistor 50
- Target discharge pipe temperature control 50
- Detection of overcurrent and overload 51
- Malfunctions 51
- Refrigerant shortage control 51
- Sensor malfunction detection 51
- Part 5 operation manual 52
- System configuration 3 2 operation manual 4 52
- System configuration 53
- Operation manual 54
- Remote controller 54
- Auto dry cool heat fan operation 55
- To change the temperature setting 55
- To start operation 55
- To stop operation 55
- Press fan setting button 56
- To change the air flow rate setting 56
- Powerful operation 57
- To cancel powerful operation 57
- To start powerful operation 57
- Outdoor unit quiet operation 58
- To cancel outdoor unit quiet operation 58
- To start outdoor unit quiet operation 58
- Home leave operation 59
- Operation manual 49 59
- Sibe07 618_d operation manual 59
- To cancel home leave operation 59
- To start home leave operation 59
- When using home leave operation for the first time please set the temperature and air flow rate for home leave operation 59
- Before bed 60
- Every day before you leave the house 60
- Use as a favorite mode 60
- Use as an energy saving mode 60
- Useful in these cases 60
- What s the home leave operation 60
- Timer operation 61
- To cancel the off timer operation 61
- To use off timer operation 61
- Attention 62
- To cancel on timer operation 62
- To combine on timer and off timer 62
- To use on timer operation 62
- Caution for diagnosis 4 63
- Check 3 63
- Part 6 service diagnosis 63
- Problem symptoms and measures 5 3 service check function 6 4 troubleshooting 9 63
- Caution for diagnosis 64
- Troubleshooting with led 64
- Problem symptoms and measures 65
- Check method 1 1 when the timer cancel button is held down for 5 seconds 66
- Indication appears on the temperature display section 66
- Note 1 a short beep pi and two consecutive beeps pi pi 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 66
- Press the timer cancel button repeatedly until a long beep sounds 66
- Service check function 66
- The code indication changes in the sequence shown below 66
- Timer cancel button 66
- Displayed only when system down occurs 69
- Error codes and description 69
- Troubleshooting 69
- Defective indoor unit pcb 70
- Disconnection of connector 70
- Evaluation of zero cross detection of power supply by the indoor unit pcb 70
- Indoor unit pcb abnormality 70
- Malfunction decision conditions 70
- Method of malfunction detection 70
- Note check the following connector 70
- Remote controller display 70
- Supposed causes 70
- There is no zero cross detection in approximately 10 seconds 70
- Troubleshooting 70
- Wrong models interconnected 70
- Freeze up protection control or heating peak cut control 71
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 72
- Caution 72
- Check no 6 refer to p 5 72
- Service diagnosis 72
- Troubleshooting 72
- Troubleshooting sibe07 618_d 72
- Breaking of the fan motor lead wires 73
- Breaking of wire inside the fan motor 73
- Check no 6 refer to p 01 73
- Defective capacitor of the fan motor 73
- Defective indoor unit pcb 73
- Fan motor ac motor or related abnormality 73
- Layer short inside the fan motor winding 73
- Malfunction decision conditions 73
- Method of malfunction detection 73
- Remote controller display 73
- Supposed causes 73
- The detected rotation speed does not reach the demanded rotation speed of the target tap and is less than 50 of the maximum fan motor rotation speed 73
- The rotation speed is detected by the hall ic while the fan motor is operating the rotation speed determines the error 73
- Troubleshooting 73
- Thermistor or related abnormality indoor unit 74
- Breaking of the connection wires between the indoor and outdoor units wire no 3 75
- Check no 0 refer to p 7 75
- Defective indoor unit pcb 75
- Defective outdoor unit pcb 75
- Disturbed power supply waveform 75
- Malfunction decision conditions 75
- Method of malfunction detection 75
- Remote controller display 75
- Signal transmission error between indoor unit and outdoor unit 75
- Supposed causes 75
- The data received from the outdoor unit checked whether it is normal 75
- The data sent from the outdoor unit cannot be received normally or the content of the data is abnormal 75
- Troubleshooting 75
- Wiring error 75
- Defective indoor unit pcb 76
- Defective outdoor unit pcb 76
- Malfunction decision conditions 76
- Method of malfunction detection 76
- Remote controller display 76
- Supposed causes 76
- The pair type and multi type are interconnected 76
- The supply power is detected for its requirements different from pair type and multi type by the indoor outdoor transmission signal 76
- Troubleshooting 76
- Unspecified voltage between indoor unit and outdoor unit 76
- Wrong indoor unit pcb or outdoor unit pcb mounted 76
- Wrong models interconnected 76
- Wrong wiring of connection wires 76
- Outdoor unit pcb abnormality 77
- A compressor overload is detected through compressor ol 78
- Check no 1 refer to p 7 78
- Check no 4 refer to p 3 78
- Check no 5 refer to p 4 78
- Check no 6 refer to p 5 78
- Defective discharge pipe thermistor 78
- Defective electronic expansion valve or coil 78
- Defective four way valve or coil 78
- Defective outdoor unit pcb 78
- Defective stop valve 78
- If the error repeats twice the system is shut down 78
- Malfunction decision conditions 78
- Method of malfunction detection 78
- Ol activation compressor overload 78
- Refrigerant shortage 78
- Remote controller display 78
- Reset condition continuous run for about 60 minutes without any other error 78
- Supposed causes 78
- The operating temperature condition is not specified 78
- Troubleshooting 78
- Water mixed in refrigerant 78
- A compressor lock is detected by checking the compressor running condition through the position detection circuit 79
- Check no 4 refer to p 9 79
- Compressor lock 79
- Compressor locked 79
- Disconnection of compressor harness 79
- If the error repeats 16 times the system is shut down 79
- Judging from the current waveform generated when high frequency voltage is applied to the compressor 79
- Malfunction decision conditions 79
- Method of malfunction detection 79
- Remote controller display 79
- Reset condition continuous run for about 5 minutes without any other error 79
- Supposed causes 79
- Troubleshooting 79
- An error is determined with the high voltage fan motor rotation speed detected by the hall ic 80
- Check no 5 refer to p 01 80
- Dc fan lock 80
- Defective fan motor 80
- Defective outdoor unit pcb 80
- Disconnection of the fan motor 80
- Foreign matters stuck in the fan 80
- If the error repeats 16 times the system is shut down 80
- Malfunction decision conditions 80
- Method of malfunction detection 80
- Remote controller display 80
- Reset condition continuous run for about 5 minutes without any other error 80
- Supposed causes 80
- The fan does not start in 30 seconds even when the fan motor is running 80
- Troubleshooting 80
- An input overcurrent is detected by checking the input current value being detected by ct with the compressor running 81
- Check no 4 refer to p 9 81
- Check no 7 refer to p 6 81
- Check no 8 refer to p 6 81
- Defective compressor 81
- Defective outdoor unit pcb 81
- Defective power module 81
- Input overcurrent detection 81
- Malfunction decision conditions 81
- Method of malfunction detection 81
- Remote controller display 81
- Short circuit 81
- Supposed causes 81
- The following ct input with the compressor running continues for 2 seconds ct input above 20 a 81
- Troubleshooting 81
- Four way valve abnormality 82
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 83
- Check no 1 refer to p 7 83
- Check no 5 refer to p 4 83
- Check no 6 refer to p 5 83
- Service diagnosis 73 83
- Sibe07 618_d troubleshooting 83
- Troubleshooting 83
- Discharge pipe temperature control 84
- Check no 4 refer to p 3 85
- Check no 6 refer to p 5 85
- Check no 7 refer to p 6 85
- Check no 8 refer to p 6 85
- Check no 9 refer to p 7 85
- Defective electronic expansion valve or coil 85
- Defective outdoor fan motor 85
- Defective outdoor heat exchanger thermistor 85
- Defective outdoor unit pcb 85
- Defective stop valve 85
- Dirty outdoor heat exchanger 85
- High pressure control in cooling 85
- High pressure control operation half frequency drop etc is activated in cooling mode if the temperature sensed by the outdoor heat exchanger thermistor exceeds the limit 85
- Malfunction decision conditions 85
- Method of malfunction detection 85
- Remote controller display 85
- Supposed causes 85
- The error is cleared when the temperature drops below about 50 c 85
- The installation space is not large enough 85
- The temperature sensed by the outdoor heat exchanger thermistor rises above about 60 c 85
- Troubleshooting 85
- Compressor system sensor abnormality 86
- Defective compressor 86
- Defective outdoor unit pcb 86
- Disconnection of compressor harness 86
- Disconnection of reactor 86
- Malfunction decision conditions 86
- Method of malfunction detection 86
- Remote controller display 86
- Supposed causes 86
- The compressor current does not run when the compressor starts 86
- The supply voltage and the dc voltage is obviously low or high 86
- The system checks the compressor current right after the compressor starts 86
- The system checks the supply voltage and the dc voltage before the compressor starts 86
- Troubleshooting 86
- Position sensor abnormality 87
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 88
- Check no 4 refer to p 9 88
- Service diagnosis 88
- Troubleshooting 88
- Troubleshooting sibe07 618_d 88
- Ct or related abnormality 89
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 90
- Caution 90
- Check no 2 refer to p 8 90
- Check no 4 refer to p 9 90
- Service diagnosis 90
- Troubleshooting 90
- Troubleshooting sibe07 618_d 90
- Thermistor or related abnormality outdoor unit 91
- Caution 92
- Check no 6 refer to p 5 92
- Discharge pipe thermistor 92
- Outdoor heat exchanger thermistor 92
- Outdoor temperature thermistor 92
- Service diagnosis 92
- Troubleshooting in case of 92
- Troubleshooting sibe07 618_d 92
- Electrical box temperature rise 93
- A c 95 b c 80 94
- C c 85 94
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 94
- Check no 7 refer to p 6 94
- Check no 9 refer to p 7 94
- Service diagnosis 94
- Troubleshooting 94
- Troubleshooting sibe07 618_d 94
- Radiation fin temperature rise 95
- A c 105 96
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 96
- Check no 7 refer to p 6 96
- Check no 9 refer to p 7 96
- Note1 refer to application of silicon grease to a power transistor and a diode bridge on page 132 for detail 96
- Service diagnosis 96
- Troubleshooting 96
- Troubleshooting sibe07 618_d 96
- Output overcurrent detection 97
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 98
- Caution 98
- Check no 3 refer to p 8 98
- Check no 4 refer to p 9 98
- Check no 7 refer to p 6 98
- Check no 8 refer to p 6 98
- Service diagnosis 98
- Troubleshooting 98
- Troubleshooting sibe07 618_d 98
- Refrigerant shortage 99
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 100
- Caution 100
- Check no 4 refer to p 3 100
- Check no 6 refer to p 5 100
- Service diagnosis 100
- Troubleshooting 100
- Troubleshooting sibe07 618_d 100
- An over voltage signal is fed from the over voltage detection circuit to the microcomputer 101
- Defective dc voltage detection circuit 101
- Defective over voltage detection circuit 101
- Defective pam control part 101
- If the error repeats 16 times the system is shut down 101
- Layer short inside the fan motor winding 101
- Low voltage detection 101
- Low voltage detection an abnormal voltage drop is detected by the dc voltage detection circuit 101
- Low voltage detection or over voltage detection 101
- Malfunction decision conditions 101
- Method of malfunction detection 101
- Over voltage detection 101
- Over voltage detection an abnormal voltage rise is detected by the over voltage detection circuit 101
- Remote controller display 101
- Reset condition continuous run for about 60 minutes without any other error 101
- Supply voltage is not as specified 101
- Supposed causes 101
- The compressor stops if the error occurs and restarts automatically after 3 minute standby 101
- The voltage detected by the dc voltage detection circuit is below 150 v 101
- Troubleshooting 101
- Signal transmission error on outdoor unit pcb 102
- Electronic expansion valve check 103
- How to check 103
- Check no 5 104
- Check sibe07 618_d 104
- Four way valve performance check 104
- Service diagnosis 104
- Check no 6 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 105
- For the models in which the thermistor is directly mounted on the pcb disconnect the connector for the pcb and measure 105
- Thermistor resistance check 105
- Check no 7 106
- Check no 8 106
- Check sibe07 618_d 106
- Discharge pressure check 106
- Installation condition check 106
- Service diagnosis 106
- Check no 0 measure the power supply waveform between no and no on the terminal board and check the waveform disturbance 107
- Check no 1 107
- Check no 9 dc motor 107
- Check to see if the power supply waveform is a sine wave fig 107
- Check to see if there is waveform disturbance near the zero cross sections circled in fig 107
- Fig fig 107
- Inverter units refrigerant system check 107
- Outdoor fan system check 107
- Power supply waveforms check 107
- Service diagnosis 97 107
- Sibe07 618_d check 107
- Capacitor voltage check 108
- Check no 2 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 108
- Check no 3 108
- Disconnect the compressor harness connector from the outdoor unit pcb to disengage the connector press the protrusion on the connector 108
- Follow the procedure below to measure resistance between the terminals of the db1 and the terminals of the compressor with a multi tester evaluate the measurement results for a judgment 108
- Note check to make sure that the voltage between and of the diode bridge db1 is approx 0 v before checking 108
- Power module check 108
- Inverter checker check 109
- Hall ic check 111
- Rotation pulse input on the outdoor unit pcb check 111
- Outdoor unit 03 112
- Part 7 removal procedure 112
- Outdoor unit 113
- Removal of outer panels 113
- Push the front panel and lift the shield plate to unfasten the hooks 114
- Remove the 6 screws of the front panel 114
- The discharge grille has 4 hooks 114
- Removal of outdoor fan fan motor 117
- Disconnect the connector for the fan motor s70 118
- Release the fan motor lead wire from the 7 hooks 118
- Remove the fan motor 118
- Removal of electrical box 121
- Disconnect the 2 earth wires 122
- Remove the 3 screws of the right side panel 122
- Remove the screw of the electrical box 122
- Detach the clamp and release the thermistor lead wires from the hook 124
- Release the clamp of the compressor relay harness with pliers 124
- Remove the screw 124
- Lift and remove the electrical box 125
- Release the harness of the outdoor temperature thermistor from the hook 125
- Removal of pcb 126
- Lift up and remove the main pcb 128
- Refer to page 16 for detail 128
- Remove the 3 screws of the main pcb 128
- Unfasten the 4 hooks 128
- Removal of sound blanket thermistors 129
- Removal of four way valve 131
- Removal of electronic expansion valve 132
- Removal of compressor 133
- Part 8 trial operation and field settings 136
- Pump down operation 137
- Coolin 138
- Detail 138
- Forced cooling operation mode 138
- Outline forced cooling operation mode includes only forced cooling 138
- Trial operation 139
- Cut the jumper j4 140
- Cut the jumper ja on pcb 140
- Field settings 140
- Indoor unit pcb 140
- When 2 indoor units are installed in 1 room 1 of the 2 pairs of indoor unit and wireless remote controller can be set for different addresses both the indoor unit pcb and the wireless remote controller need alteration 140
- When 2 units are installed in 1 room 140
- Wireless remote controller 140
- Caution 1 if the outdoor unit is installed where the outdoor heat exchanger of the unit is exposed to direct wind provide a windbreak wall 2 intermittent noises may be produced by the indoor unit due to the outdoor fan turning on and off when using facility settings 3 do not place humidifiers or other items which might raise the humidity in rooms where facility settings are being used a humidifier might cause dew jumping from the indoor unit outlet vent 4 use the indoor unit at the highest level of airflow rate 141
- Detail you can expand the operation range to 15 c by turning on the switch sw4 b on the service monitor pcb if the outdoor temperature falls to 20 c or lower the operation stops if the outdoor temperature rises the operation starts again 141
- Facility setting switch cooling at low outdoor temperature 141
- For the location of the jumper refer to page 141
- For the location of the switch refer to page 141
- Jumper and switch settings 141
- Outline for cooling only model this function is limited only for facilities the target of air conditioning is equipment such as computer never use it in a residence or office the space where there is a human 141
- Application of silicon grease to a power transistor and a diode bridge 142
- Ng foreign object 142
- Not applied paper waste 142
- Ok evenly applied silicon grease ng not evenly applied 142
- Power transistor trm tpm igbt ipm spm etc diode bridge diode bridge rectifier stack etc 142
- Take out a pcb 142
- Part 9 appendix 143
- Piping diagrams 34 143
- Wiring diagrams 36 143
- Appendix 144
- Fdks50 60cvmb fdxs50 60cvmb 144
- Indoor unit 144
- Piping diagrams 144
- Piping diagrams sibe07 618_d 144
- Appendix 135 145
- Cooling only 145
- Heat pump 145
- Outdoor unit 145
- Rks50 60e2 3 v1b rks50 60f2v1b rks50g2v1b rks60f3v1b 145
- Rxs50 60e2 3 v1b rxs50 60f2v1b rxs50g2v1b rxs60f3v1b 145
- Sibe07 618_d piping diagrams 145
- D045012l 146
- Fdks50 60cvmb fdxs50 60cvmb 146
- Indoor unit 146
- Wiring diagrams 146
- Appendix 137 147
- Cooling only 147
- Outdoor unit 147
- Rks50 60e2 3 v1b rks60f2v1b 147
- Rks50f2v1b rks50g2v1b 147
- Sibe07 618_d wiring diagrams 147
- Appendix 148
- Heat pump 148
- Rks60f3v1b 148
- Rxs50f2v1b rxs50g2v1b 148
- Wiring diagrams sibe07 618_d 148
- Appendix 139 149
- D050706k 149
- Rxs50 60e2 3 v1b rxs60f2v1b 149
- Rxs60f3v1b 149
- Sibe07 618_d wiring diagrams 149
- Air conditioners should not be installed in areas where corrosive gases such as acid gas or alkaline gas are produced 2 if the outdoor unit is to be installed close to the sea shore direct exposure to the sea breeze should be avoided if you need to install the outdoor unit close to the sea shore contact your local distributor 150
- Ask a qualified installer or contractor to install this product do not try to install the product yourself improper installation can result in water or refrigerant leakage electrical shock fire or explosion 150
- Cautions on product corrosion 150
- Daikin industries ltd s products are manufactured for export to numerous countries throughout the world daikin industries ltd does not have control over which products are exported to and used in a particular country prior to purchase please therefore confirm with your local authorised importer distributor and or retailer whether this product conforms to the applicable standards and is suitable for use in the region where the product will be used this statement does not purport to exclude restrict or modify the application of any local legislation 150
- Http www daikin com global_ac 150
- If you have any enquiries please contact your local importer distributor and or retailer 150
- Read the user s manual carefully before using this product the user s manual provides important safety instructions and warnings be sure to follow these instructions and warnings 150
- Sibe07 618_d printed in japan 01 2011 b ak 150
- Use only those parts and accessories supplied or specified by daikin ask a qualified installer or contractor to install those parts and accessories use of unauthorised parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage electrical shock fire or explosion 150
- Warning 150
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