
3.5 Left/right louver does not operate at all.
Louver/link/cam assembly
check
If a constant torque is felt when rotating louver by hands,
the assembled condition is normal.
At the moment the room fan is stopped, louver auto
swing is stopped, and if room fan is started, auto swing is
re-operated.
- Especially, it occurs while dehumidifying or heating.
Motor shaft assembly check
Connector check
(Disconnection/short
circuit/malconnection)
Blower operating condition
check
PCB ass'y check
Step motor driving circuit
Synchronous motor driving circuit
TCL Air Conditioner Service Manual
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