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Troubleshooting Guide
When Vertical Louver does not operate.
• Confirm that the Vertical Louver is normally geared with the shaft of
Stepping Motor.
• If the regular torque is detected when rotating the Vertical Louver with
hands
• Check the connecting condition of CN-U/D Connector
• Check the soldering condition(on PWB) of CN-U/D Connector
• Confirm that there is DC + 12V between pin (RED) of CN-U/D and
GND.
• Confirm that there is a soldering short at following terminals.
- Between
- Between
- Between
• Confirm the assembly conditions that are catching and interfering parts
in the rotation radial of the Vertical Louver
54 Room Air Conditioner
Normal
Check the operating circuit of the Vertical Louver
,
,
and
of MICOM
60
61
62
63
,
,
and
of IC01M
,
,
and
of IC01M
If there are no problems after above checks
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