102
16.3.7 IPM malfunction or IGBT over-strong current protection diagnosis and solution (P0)
Error Code
P0
Malfunction
conditions
When the voltage signal the IPM sends to the compressor drive
chip is
abnormal, the display LED shows “P0” and the AC turn
off.
Possible causes
●
Wiring mistake
●
IPM malfunction
●
Faulty outdoor fan assembly
●
Compressor malfunction
●
Faulty outdoor PCB
Trouble shooting:
Check the wiring between main PCB
and compressor. Does an error
exist?
Ensure a proper connection or
replace the wires and connectors
Yes
No
Check the IPM. Is it in working
order?
No
Yes
Replace the IPM board or replace
the main PCB
Check the outdoor fan and the
outdoor unit ventilation. Is it in
working order?
No
Please refer to the solution to the
“f
an speed is out of control
”
malfunction
Yes
Check the compressor resistance
values. Are they within acceptable
parameters?
No
Replace the compressor
Yes
Replace the outdoor main PCB
Содержание MUE-48HRFN1-M
Страница 8: ...5 2 2 Part names of Indoor Outdoor units Cassette Unit...
Страница 9: ...6 Duct Units...
Страница 10: ...7 Console...
Страница 11: ...8 Ceiling floor Units...
Страница 28: ...25 Model W D H W1 A B MOE30U 48HFN1 M mm 952 415 1333 1045 634 404 inch 37 5 16 3 52 5 41 1 25 0 15 9...
Страница 30: ...27 Console Unit Ceiling floor Units...
Страница 34: ...31 CFAU 09HRFN1 M C CFAU 12HRFN1 M C MCD 36HRFN1 M C MCD 48HRFN1 M D...
Страница 35: ...32 CTBU 36HWFN1 M C CTBU 48HWFN1 M C...
Страница 36: ...33 MUEU 18HRFN1 M C MUEU 24HRFN1 M C MUE 36HRFN1 M C...
Страница 37: ...34 MUE 48HRFN1 M C MUE 36HRFN1 M C MUE 48HRFN1 M C...
Страница 39: ...36 MOBA30 09HFN1 MT0W MOB30 12HFN1 MT0W...
Страница 40: ...37 MOD30 24HFN1 MT0W MOD01 23HFN1 MT0W...
Страница 41: ...38 MOD30U 36HFN1 M...
Страница 47: ...44 CTBU 09HWFN1 M C Code 0 Code 1 Code 2 Code 3 Code 4...
Страница 48: ...45 CTBU 12HWFN1 M C Code 0 Code 1 Code 2 Code 3 Code 4...
Страница 49: ...46 CTBU 18HWFN1 M C Code 0 Code 1 Code 2 Code 3 Code 4...
Страница 50: ...47 CTBU 24HWFN1 M C Code 0 Code 1 Code 2 Code 3 Code 4...
Страница 51: ...48 CTB 36HWFN1 M C Code 0 Code 1 Code 2 Code 3 Code 4...
Страница 52: ...49 CTB 48HWFN1 M C Code 0 Code 1 Code 2 Code 3 Code 4...
Страница 61: ...58 12 Field Wiring 36K 48K...
Страница 106: ...103 P U P V...
Страница 107: ...104 P W P N...
Страница 123: ...120 4 Remove the evaporator support board 5 Screw off the fixing screws to remove the evaporator 4 screws 1 screw...
Страница 155: ...152 5 Remove the four fixing screws of the fan motor then remove the motor 5...
Страница 168: ...165 6 Remove the grounding screw 7 Remove the Wires 1 2 3 or L1 L2 S Then remove the electronic control box 5 7...