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10.3 Vane does not operate at all.
Vane bending, structures
interference check
Connector check
(Broken/short circuit/mal-
connection)
10.5 Cooling/heating conversion is disable.
Air Conditioner Service Manual
Vane motor check
PCB assembly check(vane
motor driving circuit)
Heating operation ON by remote
controller
Connector check
If the 4-way valve is ON, "tick"
sounds.
4-way valve connection check
outdoor unit connecting wire check
Check the voltage of 4-way valve
coil
4-way valve coil resistance check
Replace the vane motor
Replace the PCB
PCB assembly
31
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