Haier AU96NFTAHA - Page 57

54
*3
Fan only
mode, whether
the fan runs
Yes
Whether
other indoor
unit begin to
run
Yes
Whether
there is 15V voltage
between B, C of remote
controller
terminal
Whether
there is 15V voltage
between B, C of indoor
unit terminal
block
No No
Indoor PCB isimproperWire around PCB ofindoor unit is broken,improper plugging ofsocket
1
2
No
In heat runningIn control of heating andcool refrigerant and oilrecoveryResistance value of TC2sensor is improper
1
2
3
No
Wrong connection of connectingwire between indoor unit group ofremote controllers
Yes
Whether
the indoor
fan runs
Yes
Yes
Wrong connection ofconnecting wire betweenindoor unit group andremote controller
Whether
the rotary direction
of the fan is right
The filter is blockedThe indoor heatexchanger is blocked
1
2
The capacitor of fanmotor is improper
Whether
the AC220V voltage
is added to the indoor
fan motor
Yes
1
Indoor PCB is improperWire around PCB of indoor unit is broken, improperplugging of socket
2
No
Repair supply voltage
Remove connectingwire of fan motor
Whether
the fan motor is
connected or has
electric
resistance
Yes
No
Indoor fan motor is
improper
Whether
the capacitor capacity
is suitable
No
Yes
The capacitor of indoor fan
motor is improper
Wire around PCB of indoor unit is broken, improperplugging of socket
Under heat mode, fan doesnot run, the LCD "preheatingdefrosting" on the remotecontroller in on.
No
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