Haier AP242ACAAA - Page 47

37
Fault coding Fault cause Resolution Remarks
1. Indoor ambient temperature sensor
get out of order, short circuit or
shutdown
2. Indoor computer plate L1 get out of
order
Replace indoor ambient
temperature sensor of computer
plate
Replace indoor coiled
temperature sensor of computer
plate
Replace outdoor ambient
temperature sensor of computer
plate
Replace outdoor coiled
temperature sensor of computer
plate
1. Remake current after power
fail
2. Replace outdoor computer
plate
Remake current after power-fail
1. Remake current after
power-fail
2. Replace indoor computer
plate
1. Remake current after
power-fail
2. Replace indoor computer
plate
3. Replace panel
1. Remake current after
power-fail
4. Replace outdoor computer
plate
1. Indoor coiled temperature sensor get
out of order, short circuit or shutdown
2. Indoor computer plate L1 get out of
order
1. outdoor ambient temperature sensor get
out of order, short circuit or shutdown
2. outdoor computer plate L1 get out of
order
1. outdoor coiled temperature sensor get
out of order, short circuit or shutdown
2. outdoor computer plate L1 get out of
order
1. Compressor current exceed
protection point
2. Current transformer of outdoor
computer plate get out of order
3. Outdoor computer plate C11 get
out of order
1. Pressure switch of outdoor unit trip
2. Pressure switch pin isn't well inserted
1. Voltage is too low
2. Indoor computer plate R2 get out of
order
3. Indoor computer plate TV-01 get out
of order
1. Connection between panel and main
plate isn't firm
2. Triode for communication between
panel and main plate get out of order
1. Current of indoor and outdoor plate
L, N isn't correspondent.
2. Triode for communication of indoor
plate get out of order
3. Outdoor plate C18 is at fault
4. Outdoor plate optical coupler P521
get out of order
5. Outdoor plate optical coupler
TLP371 get out of order
E1
E2
E3
E4
E5
E6
E7
E8
E9
9. Fault diagnosis
In the case of abnormal conditions, fault analysis shall be conducted referencing to the following table: