Haier AU482FIERA Installation & Maintenance Instructions Manual page 53

[16] Suction temp. too high
If sensor terminal is fixed well
/charactenstic is proper
If PCB terminal is well
If the system is lack
of refrigerant or leak
[17] Capacity overmatch
Yes
If sensor resistor
Yes
Yes
Check if the total indoor
units capacity is more than
150% of the outdoor unit
No
Check if the capacity dip
switch of indoor unit is right
No
Reconnect
No
Replace sensor
No
Replace PCB
Yes
Charge refrigerant and repaired the leakage
Change indoor total
Yes
capacity or change a
bigger outdoor unit
No
Change the indoor
capacity dip switch
51