Service diagnosis
38
Domestic air conditioner
10.3.5 IPM protection
Outdoor display: 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.
Electrify the machine again and turn it on
with the remote controller,If malfunctions
are reported before or upon the compressor
being started up,
IPM Module is damaged and
needs replacing.
1
ǃ
The system may have been over or under charged with gas, which can be judged through the pressure of the
measuring system.
2
ǃ
The shaft of compressor is seized and the compressor needs replacing.
<(6
12
The compressor is started normally, but
malfunctions are reported after it has run for some
time.
Malfunction unsolved
Summary of Contents for GES-NX2G50OUT
Page 11: ...Pinping diagrams Domestic air conditioner 4ˊPiping diagrams 9 EEV EEV ...
Page 12: ... Operation range Domestic air conditioner 5ˊOperation range 10 ...
Page 58: ...Circuit diagrams 56 Domestic air conditioner 12 Circuit diagrams ...
Page 59: ...Circuit diagrams 57 Domestic air conditioner ...
Page 62: ...Domestic air conditioner Removal of procedure 1 Removal of Outdoor panel 1 ...
Page 64: ...Domestic air conditioner Loosen the screws and pull the panel Removal of procedure 3 ...
Page 65: ...Domestic air conditioner 2 Removal of Electrical Box Removal of procedure 4 ...
Page 66: ...Domestic air conditioner 3 Removal of Fan and Fan Motor Removal of procedure 5 ...
Page 68: ...Domestic air conditioner 4 Removal of Fan Motor Bracket and Partition Removal of procedure 7 ...
Page 69: ...Domestic air conditioner and remove the reactor Loosen the screw Removal of procedure 8 ...