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Service diagnosis
11
.4.5 IPM protection
Indoor display
F1
Outdoor display:
LED1 flash 2 time
Domestic air conditioner
The motor of the outdoor unit is
damaged and needs replacing.
The PCB of the outdoor unit is
damaged and needs replacing
Method of
malfunction
detection
Malfunction
detection
conditions
Supposed
causes
Measure the voltage between 3
and 6 of the terminal about 0-5v.
YES
Measure the voltage
between 1 and 3 of the terminal
of fan motor on the PCB about DC310V,
Measure the voltage between 3 and 4 of
the terminal about DC15V. Measure the
voltage between 5 and 3 of the
terminal about 1-6v.
NO
YES
IPM protection is detected by checking the compressor running condition.
The system problem cause IPM over-current protection
The compressor faulty leads to IPM protection
Circuit component of IPM is broken and lead to IPM protection
The system problem cause IPM over-current protection
The compressor faulty leads to IPM protection
Circuit component of IPM is broken and lead to IPM protection
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector, or
else
parts damage may be caused
41
Содержание AS12GB3HRA
Страница 12: ... Piping diagrams Domestic air conditioner 5ˊPinping diagrams 10 ...
Страница 35: ...Seivice diagnosis Domestic air conditioner 9 Dimensional drawings 10 Center of gravity Unit mm Unit mm ...
Страница 58: ... Circuit diagrams Domestic air conditioner ...
Страница 60: ...Removal of procedure 1 Removal of Air Filter 1 Domestic Air Condition ...
Страница 63: ...Removal of procedure three two HOOKS 4 Domestic Air Condition ...
Страница 64: ...Removal of procedure 3 Removal of horizontal flap flap flap flap flap 5 Domestic Air Condition ...
Страница 65: ...Removal of procedure 4 Removal of Drain pan 6 Domestic Air Condition ...
Страница 66: ...Removal of procedure 5 Removal of vertical blades and swing motor 7 Domestic Air Condition ...
Страница 67: ...Removal of procedure 6 Removal of Electrical Box 8 Domestic Air Condition ...
Страница 68: ...Removal of procedure 7 Removal of Heat Exchanger 9 Domestic Air Condition ...
Страница 69: ...Removal of procedure 10 Domestic Air Condition ...
Страница 70: ...Removal of procedure 8 Removal of Fan Rotor and Motor 11 Domestic Air Condition ...
Страница 71: ...Removal of procedure 12 Domestic Air Condition ...