Troubleshooting - Haier AU482FIERA Installation & Maintenance Instructions Manual

12. Troubleshooting

[01~05] Temperature senor failure
[6] Incorrect dip switch setting for model selection on outdoor PCB Check
[7] Current sensor failure
If sensor terminal is fixed well
Yes
If sensor resistor
/characteristic is proper
Yes
Check if PCB is faulty, if
yes, replace it
Check if the outdoor
dip switch is
consistent with the
wiring diagram
Yes
Replace the PCB
Check if the CT current
transducer plug well
Yes
Replace
the current
transducer
No
Replace PCB
No
Reconnect
No
Replace sensor
No
Reset the dip switch
No
Reconnect
45