TCL
Air Conditioner Service Manual
10.4 Vane does not operate at all.
10.5 Cooling/heating conversion is disable.
Vane bending, structures
interference check
Connector check
(Broken/short circuit/mal-
connection)
Vane motor check
PCB assembly check(vane
motor driving circuit)
Replace the vane motor
Replace the PCB
Heating operation ON by remote
controller
Connector check
If the 4-way valve is ON, "tick"
sounds.
PCB assembly
h k
4-way valve connection check
outdoor unit connecting wire check
Check the voltage of 4-way valve
coil
4-way valve coil resistance check
34
