![Haier AU242AHBIA [295/365] Troubleshooting for inverter units](/img/pdf.png)
Haier AU242AHBIA [295/365] Troubleshooting for inverter units
![Haier AC122ACBHA [295/365] Troubleshooting for inverter units](/views2/1821723/page295/bg127.png)
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11.1.3 Troubleshooting for inverter units
yes
yes
yes
replace PCB
Are high pressure and
low pressure normal?
Are they too low?
If the pipe is
blocked?
Unclog piping
Air conditioner is
running in bad
condition?
replace PCB
Does indoor fan motor work properly in
heating cycle? Does outdoor fan motor
work properly in cooling cycle?
no
no
yes
yes
Is filter or heat exchanger dirty?
cleaning
no
Is piping twisted or
deformed?
yes
repair or replace
no
Measure equalized pressure and
running pressure to see if the
system is overfed or starved. Is
there a leak? Is capillary tube
clogged?
yes
Conduct leak test.
Evacuate and recharge
Note: This protection feature is not available with all models. In the event that compressor is on and off frequently for no
reason, check if the compressor is provided with discharging temperature protection. The protection is activated when
temperature is higher than 120° C and restored when lower than 100° C.
check fan motor and capacitor
Refrigerant charge is needed
Are stop valves in suction pipe and
liquid pipe of outdoor unit open?
no
open valves
Is discharging temperature detected
by a thermometer too high?
no
Is discharging temperature
sensor in good condition?
no
no no
yes
yes
yes
yes
1) Compressor discharging temperature protection
replace discharging sensor
start
-295-
Содержание
- Specifications 8
- Specifications for outdoor units 8
- Specifications for indoor units 22
- Pvc 26 32 wired 27
- Tp2m ф9 2x0 6 0 56 27
- X960x640 1170x840x420 27
- 37 35 28 30 29
- Pvc 26 32 remote 29
- Tp2m 7 0 99 29
- X950x80 980x980x100 29
- 1350 252 39 33
- 1350 252 39 34
- Dimension 45
- Outdoor unit dimension 45
- Indoor unit dimension 48
- Model ab092 ab182 48
- Model ab24 ab28 48
- Model ab36 ab52 49
- Model ap88 updated 56
- Panel application for cassette units 63
- Panel model function description applicable unit 63
- Controller functions 64
- Wired controller yr e12 64
- G preset 69
- H outdoor total capacity actual value decimal 69
- In check mode press check to quit the check mode and go into normal running in check mode press check to quit the check mode and go into normal running mode how to change the function switches no type state of switch function description 69
- Note 1 the switches in grey can be operated after opening the cover of wired controller 2 switches or jumper wire must be adjusted when the wired controller is powered off if the wired controller is powered on the above operations will be invalid 3 shorten time function in normal operation d1 is in short circuit it will enter shorten time mode and the time will be shortened in the proportion of 60 1 in shorten time mode led will flash at the frequency of 0 second cut off d1 it will quit the shorten time mode and return to the normal operation mode 4 compulsorily defrost in heating mode 30 and in high fan speed d2 is in short circuit it will enter compulsorily defrost mode cut off d2 it will quit it is always be used when in testing to see if the defrost function is good 5 lock function 69
- Sw01 ① 69
- Sw01 ② 69
- There is no lock function only in the wired controller but when it is connected with a central controller if the central controller is set to central the buttons in the wired controller will be invalid or the buttons will be valid failure code 70
- Off off off off 71
- Off off off on 71
- Shows resumable fault shows it is not resumable fault setting address method the address setting can be realized by setting indoor pcb if you use the group control function there should be a master unit and 15 sets of slave units for the master unit the sw5 3 should be at on for the slave units the sw5 3 should be at off please refer the below table indoor unit address sw1 4 sw1 3 sw1 2 sw1 1 71
- Electrical functions of wired controller 76
- Accessories 3 core terminal 1 white 2 yellow 3 red is connected with the 77
- All connected through 3 pieces of polar wire 77
- Communication wiring 77
- Connected with indoor unit is called master one the other is called slave one 77
- Master wired controller and indoor unit master and slave wired controllers are 77
- One side of the shielded sheet of communication wire must be earthed 77
- Please distribute wiring according to below table 77
- Terminal a b c of wired controller respectively 77
- The communication wiring is 4 meter long if the actual length is more than it 77
- The wired controller is equipped with special communication wiring in the 77
- Infrared controller yr h71 78
- Remote receiver re 01 88
- Infrared controller yr h49 used for ap182 96
- Cooling operation heating operation 113
- Filter 113
- Heat exchanger 113
- One way valve 113
- Outdoor unit indoor unit 113
- Refrigerant diagram 113
- Refrigerant diagram for heat pump air conditioner 113
- Reversing valve 113
- Stop valve 113
- Installation instruction 115
- Installed 154
- Blowing 212
- Control features 212
- Cooling 212
- Cooling blowing 212
- Cooling ts 3 212
- E lectric control functions 212
- Heating 212
- Room temperature rising 212
- Area a 214
- Area a ts 214
- Area b 214
- Area c 214
- Room temperature falling 214
- Room temperature rising 214
- Or off 217
- Inverter unit 218
- Max frequenc 220
- Au092aabha au122aabha 226
- Circuit diagram of outdoor unit 226
- Inverter outdoor unit 226
- Au142afbia au182afbja 227
- Circuit diagram of outdoor unit 227
- Au242ahbia 228
- Circuit diagram of outdoor unit 228
- Circuit diagram of outdoor unit 229
- Cn2 cn1 229
- Dashed parts 1 2 is not available in only cooling type 229
- Dashed parts 1 is not available in only cooling type 229
- Dashed parts 2 is optional for low ambient temp 229
- Dashed parts 3 is optional in low ambient temp cooling type and there is no fan motor speed contrller in normal type 229
- Discharge sensor 229
- Fan motor 229
- Fan motor speed controller 229
- Fan n3 n2 st 229
- Fixed frequency outdoor unit 229
- High pressure switch 229
- Low pressure switch 229
- Outdoor ambinent sensor 229
- Outdoor piping sensor 229
- R red w ehite gr grey bl blue b black y g yellow green 229
- R red w white bl blue b black 229
- To indoor unit 229
- Way vavle 229
- Y g yellow green 229
- Circuit diagram of outdoor unit 230
- Ab092 122 142 182acbia ac092 122 142 182acbia ad092 122 142 182ambia ab14 182acbea ac14 18 242acbea ad14 182ambea 231
- Ab242 28n 36n 42n 52nacbea ac28n 36n 42n 52nafbea ad242 28n 36n 42nambea ad242ambia 231
- Circuit diagram of indoor unit 0010576546 231
- Convertible type and correspondingly there is a clip on pcb 231
- Indoor unit 231
- Parts and connected wires in dashed frame 11 only for ac142 182 242acbea 7 parts and connected wires in dashed frame 12 determined by products type 8 in ac242acbea dashed lines marked conneted to 1 2 on terminal block and there are no lines between 1 and l 2 and n 9 refer to operation manual to set sw1 sw5 231
- Receive board 231
- Receiver 231
- Remote 231
- W white b black r red y yellow or orange bl blue br brown 231
- Ap242 42nacbea 233
- Ap88nacbea 233
- Circuit dargrma of indoor unit 233
- Wiring diagram of indoor unit 233
- To p23 237
- To p43 237
- Au182acbea õµ æ µçäô åô àíí¼ 243
- Au242ahbea au282ahbea pcb circuit diagram 246
- Au28nahbea au36naibea au42naibea pcb circuit diagram 249
- Au52naibea pcb circuit diagram 252
- Au88natbea pcb circuit diagram 255
- C10 103 255
- C11 103 255
- C12 103 255
- C3 103 255
- C31 10uf 16v 255
- D10 d9 l1 255
- Ex th temp th 255
- K 2w 3 255
- Osc 4mhz 255
- R1 200k 255
- R5 33k 255
- T3 5a 250v 255
- Tlp371 255
- Tlp521 1 255
- Uf 16v 255
- Uf 250v 255
- Uf 25v 255
- Uf 275v 255
- Uf 50sv 255
- Uf 50v 255
- Uln2003a 255
- Au092aabha au122aabha 258
- Main parts of electric control assembly 258
- Main parts of pcb 0010451691 258
- Au142afbia au182afbja main parts of electric control assembly 259
- Main parts of pcb 0010451692 259
- Main parts of power supply board 001a0600173a 259
- Au242ahbia main parts of electric control assembly 260
- Main parts of pcb 0010451693 260
- Nr 14d 260
- S14kv350 260
- Au142afbea au182afbea main parts of electric control assembly 261
- Au242ahbea au282ahbea main parts of electric control assembly 262
- Au28nahbea au36naibea au42naibea main parts of electric control assembly 263
- Au52naibea main parts of electric control assembly 264
- Au88natbea main parts of electric control assembly 265
- Ports on pcb functions for au092 122aabha 266
- Cn501 cn502 267
- Ports on pcb functions for au142afbia au182afbja 267
- Ports on pcb functions for au242ahbia 268
- Ports on pcb functions for au142afbea au182afbea 269
- Ports on pcb functions for au242ahbea au88natbea 270
- Indoor units except for ap18 ap88 pcb circuit diagram 271
- Condition for the pcb data 273
- Indoor units pcb except for ap18 ap88 ports and functions 273
- P ort and definition 273
- F unction selection on is 1 off is 0 275
- Pcb information control type 276
- Model name code sub part code characteristic 281
- Sensor characteristic 281
- Model name code sub part code characteristic 282
- Failure code and troubleshooting 290
- Fault in ambient temperature sensor short circuit open circuit 291
- Fault in compressor sensor reserved on 291
- Fault in heat exchange sensor short circuit open circuit 291
- Fault with outdoor unit 291
- Led4 led3 led2 led1 remarks no fault code fault name possible causes status status status status 291
- Low pressure protection gas is inadequate on 291
- Module error overheat overcurrent or short circuit 291
- No load 291
- On off 291
- On on on 291
- Transmission error reserved 291
- 2 for the unit with new wired controller yr e12 0010451521 293
- Compressor discharging temperature protection 295
- Troubleshooting for inverter units 295
- Yes yes 295
- If failure disappear after pcb is changed 297
- Indoor pcb failure 297
- Repair fan motor or fan capacitor 297
- An external alarm is identified according to the list of fault codes 298
- External alarm 298
- If failure disappear after pcb is changed 298
- Is alarm terminal in mainboard disconnected 298
- Is an external alarm connected to the system 298
- Replace pcb 298
- Short connect that terminal 298
- Solve problem accordingly yes 298
- Connect firmly 300
- If rectifier is normal 300
- Cleaning 301
- If failure disappear after pcb is changed indoor pcb failure 301
- In heating mode indoor motor speed too low or stop 301
- Indoor outdoor temp too high 301
- Is filter or indoor heat exchanger dirty 301
- Is pipe temperature sensor in good condition 301
- Modify indoor motor or fan capacitor 301
- No replace indoor coil sensor 301
- Overload in heating cycle 301
- Ipm power module protection 302
- Possible causes 1 short circuit or overcurrent 2 control power supply is less than 13 v 3 module is overheat with a temperature higher than 145 c 302
- Failure code and troubleshooting for fixed frequency units 303
- The failure code please refer to 11 303
- Troubleshooting for fixed frequency units 303
- Low pressure protection 304
- High pressure protection 305
- No it s split winding type motor 311
- Switch 312
- 22 25 27 30 32 313
- 5 15 25 35 43 313
- 5 5 15 25 35 43 313
- Performance curves 313
- 18 20 22 24 26 28 314
- 7 5 0 7 10 15 314
- C heat capacity graph only heat type available 314
- D cop graph only heat type available 314
- 22 25 27 30 32 316
- 5 5 15 25 35 43 316
- 18 20 22 24 26 28 317
- 7 5 0 7 10 15 317
- Modify coefficient 320
- 22 25 27 30 32 321
- 7 5 15 25 35 43 321
- 2 4 6 8 10 12 14 16 18 326
- 22 25 27 30 32 326
- 7 5 15 25 35 43 326
- Outdoor db 326
- 23 25 28 30 0 327
- 7 10 15 20 327
- Indoor ambient temperature 327
- Outdoor ambient temperature 327
- Unload period 327
- Capability modification kw capability modification kw 328
- Fan high 329
- Fan low 329
- Fan med 329
- Noise curves 329
- Noise level ab182acbea 329
- Noise level ad182ambea 329
- Sound pressure level db 329
- Third octave band frequency hz 329
- Cooling high 330
- Cooling low 330
- Fan high 330
- Fan low 330
- Heating high 330
- Heating low 330
- Noise level ad242ahbea 330
- Noise level ad28nahbea 330
- Sound pressure level db 330
- Third octave band frequency hz 330
- Fan high 331
- Fan low 331
- Fan med 331
- Noise level ad36nambea 331
- Noise level ad42nahbea 331
- Sound pressure level db 331
- Third octave band frequency hz 331
- Fan high 332
- Fan low 332
- Fan med 332
- Noise level ad42nambea 332
- Noise level ap182acbea 332
- Sound pressure level db 332
- Third octave band frequency hz 332
- Cooling high 333
- Cooling low 333
- Cooling med 333
- Fan high 333
- Fan low 333
- Fan med 333
- Heating high 333
- Heating low 333
- Heating med 333
- Noise level ap242acbea 333
- Noise level ap42nacbea 333
- Sound pressure level db 333
- Third octave band frequency hz 333
- Cooling high 334
- Cooling low 334
- Cooling med 334
- Fan high 334
- Fan low 334
- Fan med 334
- Heating high 334
- Heating low 334
- Heating med 334
- Noise level ab122acbha 334
- Noise level au122aabha 334
- Sound pressure level db 334
- Third octave band frequency hz 334
- 3 octave band noise level ad182ambia 335
- 3 octave band noise level au182afbja 335
- Cooling high 335
- Cooling low 335
- Cooling med 335
- Cooling superhigh 335
- Fan high 335
- Fan low 335
- Fan med 335
- Fan superhigh 335
- Heating high 335
- Heating low 335
- Heating med 335
- Sound pressure level db 335
- Third octave band frequency hz 335
- Cooling high 336
- Cooling low 336
- Cooling med 336
- Fan high 336
- Fan low 336
- Fan med 336
- Heating high 336
- Heating low 336
- Heating med 336
- Noise level ac242acbea 336
- Noise level au242ahbea 336
- Sound pressure level db 336
- Third octave band frequency hz 336
- Cooling high 337
- Cooling low 337
- Cooling med 337
- Fan high 337
- Fan low 337
- Fan med 337
- Heating high 337
- Heating low 337
- Heating med 337
- Noise level ab28nacbea 337
- Noise level au28nahbea 337
- Sound pressure level db 337
- Third octave band frequency hz 337
- Cooling high 338
- Cooling low 338
- Cooling med 338
- Fan high 338
- Fan low 338
- Fan med 338
- Heating high 338
- Heating low 338
- Heating med 338
- Noise level ac36nafbea ac42nafbea 338
- Noise level au36 42naibea 338
- Sound pressure level db 338
- Third octave band frequency hz 338
- Cooling high 339
- Cooling low 339
- Cooling med 339
- Fan low 339
- Heating high 339
- Heating low 339
- Heating med 339
- Noise level ab36nacbea 339
- Noise level au36naibea 339
- Sound pressure level db 339
- Third octave band frequency hz 339
- Cooling high 340
- Cooling low 340
- Cooling med 340
- Fan high 340
- Fan low 340
- Fan med 340
- Heating high 340
- Heating low 340
- Heating med 340
- Noise level ab52nacbea 340
- Sound pressure level db 340
- Third octave band frequency hz 340
- Cooling high 341
- Cooling low 341
- Cooling med 341
- Fan high 341
- Fan low 341
- Fan med 341
- Heating high 341
- Heating low 341
- Heating med 341
- Noise level ac52nafbea 341
- Noise level au52naibea 341
- Sound pressure level db 341
- Third octave band frequency hz 341
- Cooling high 342
- Cooling low 342
- Cooling med 342
- Fan high 342
- Fan low 342
- Fan med 342
- Heating high 342
- Heating low 342
- Heating med 342
- Noise level ap88nacbea 342
- Noise level au88natbea 342
- Sound pressure level db 342
- Third octave band frequency hz 342
- A cooling air velocity distribution 344
- Air velocity distribution 344
- B cooling temperature distribution 344
- Cassette type ab092acbha ab122acbha 344
- Convertible type 346
- Duct type 348
- 18000btu h indoor units 350
- Cassette type 350
- Convertible type 352
- A cooling air velocity distribution 354
- B ceiling 354
- B cooling temperature distribution 354
- 28000btu h indoor units 358
- 42000btu h indoor units 361
- A cooling air velocity distribution 362
- Ac36nacbea 362
- Air velocity distribution 362
- B cooling temperature distribution 362
- Cooling blowy angle 25 362
- Temperature distribution 362
- Ad36nambea ad42nambea 363
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