Service diagnosis
38
Domestic air conditioner
10.3.5 IPM protection
Outdoor display:
ƶ ƾ ƾ
/ F1
LED1 flash 2 times
Method of IPM protection is detected by checking the compressor running condition and so on
Malfunction
Detection
Malfunction
Ŷ
The system leads to IPM protection due to over current
Decision
Ŷ
The compressor faulty leads to IPM protection
Conditions
Ŷ
circuit component of IPM is broken and led to IPM protection
Supposed
Ŷ
IPM protection dues to the compressor faulty
Causes
Ŷ
IPM protection dues to faulty PCB of IPM module
Ŷ
Compressor wiring disconnected
Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or
else parts damage may be occurred.
12
<(6
12
<(6
Summary of Contents for AW-YHDM012-H91
Page 10: ...Pinping diagrams Domestic air conditioner 4ˊPiping diagrams 9 EEV EEV ...
Page 11: ... Operation range Domestic air conditioner 5ˊOperation range 10 ...
Page 38: ...Service diagnosis 37 Domestic air conditioner ...
Page 57: ...57 Do C omestic air ircuit Diagra conditioner ams r 12 2 Module board circuit diagram ...
Page 59: ...Removal Procedure 1 Removal of Outdoor Panel ...
Page 60: ...Removal Procedure n o i t i d n o C r i A c i t s e m o D 2 ...
Page 61: ...4 Removal Procedure 3 Domestic Air Condition ...
Page 62: ...Removal Procedure 2 Removal of Electrical Box RPHVWLF LU RQGLWLR ...
Page 63: ...Removal Procedure 3 Removal of Fan and Fan Motor RPHVWLF LU RQGLWLR ...
Page 64: ...Removal Procedure 4 Removal of Fan Motor Brcked and Partition ...
Page 65: ...Removal Procedure 7 Domestic Air Condition ...
Page 66: ...Removal Procedure 5 Removal of Compressor and Heat Exchanger ...