Haier AD482MPERA - Troubleshooting

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19. Troubleshooting
Indoor failure diagnose
[01/02/03/04] indoor sensor failure
if sensor terminal is fixed well
no
yes
reconnect
no
yes
replace sensor
if sensor resistor
/characteristic is proper
check if PCB is faulty,
if yes, replace it
[08]indoor drainage system failure/float switch circuit on indoor PCB failure
no
yes
if CN13 is fixed well
reconnect
if float switch works
if water pump works
check water pump
no
no
no
no
yes
yes
yes
yes
if CN4 is
with AC220V
voltage
modify the wiring
and the circuit
check indoor PCB and
replace it if necessary
if water
pump is electrified
modify the wiring
and the circuit
replace water pump