
Service diagnosis
11
.4.10 Power Supply over or under voltage fault
Indoor display
F19
Outdoor display:
LED1 flash 6 times
Domestic air conditioner
Method of
malfunction
detection
Malfunction
detection
conditions
Supposed
causes
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector, or
else
parts damage may be caused
Supply voltage not as specified
The IPM module is broken.
The outdoor PCB is broken.
An abnormal voltage rise or fall is detected by specified voltage checking
detection circuit
An voltage signal is feedback from the voltage detection circuit to the
microcomputer
NO
House power supply fault.
Change the new one
Change the outdoor PCB
Is it rated value?
NO
YES
YES
Check the power supply
Check the IPM
module, Is it normal?
48
Summary of Contents for AS12GB3HRA
Page 12: ... Piping diagrams Domestic air conditioner 5ˊPinping diagrams 10 ...
Page 58: ... Circuit diagrams Domestic air conditioner ...
Page 60: ...Removal of procedure 1 Removal of Air Filter 1 Domestic Air Condition ...
Page 63: ...Removal of procedure three two HOOKS 4 Domestic Air Condition ...
Page 65: ...Removal of procedure 4 Removal of Drain pan 6 Domestic Air Condition ...
Page 66: ...Removal of procedure 5 Removal of vertical blades and swing motor 7 Domestic Air Condition ...
Page 67: ...Removal of procedure 6 Removal of Electrical Box 8 Domestic Air Condition ...
Page 68: ...Removal of procedure 7 Removal of Heat Exchanger 9 Domestic Air Condition ...
Page 69: ...Removal of procedure 10 Domestic Air Condition ...
Page 70: ...Removal of procedure 8 Removal of Fan Rotor and Motor 11 Domestic Air Condition ...
Page 71: ...Removal of procedure 12 Domestic Air Condition ...