Other indoor unit alarms within the group.
1.
Survey the indoor unit that alarms other than “P31” in the indoor unit group and specify the
causes of failure.
Error was judged as no connection between the ceiling cassette panel into Indoor PCB
communication (feedback signal).
Possible Causes
1. Indoor unit ceiling cassette panel connector was not properly / wrongly connected into the PCB connector
2. Air swing motor (inside the panel) was locked (jammed) or no operation
=> Check the air swing motor shaft can be rotate with hand
3. Air swing motor (inside the panel) wiring connector loosen or wire broken
=> Check the air swing motor wire connector connection
4. Indoor PCB for air swing control was malfunction
=> Check with multi meter at pin 1(red)-2, 1-3, 1-4 & 1-5 : 12Vdc
=> Check with multi meter at pin 6 (red)-7, 6-8, 6-9 & 6-10 : 12Vdc
=> Check with multi meter at pin 11 (red)-12, 11-13, 11-14 & 11-15 : 12Vdc
=> Check with multi meter at pin 16 (red)-17, 16-18, 16-19 & 16-20 : 12Vdc
WRONG
insertion
position
Panel
Connector
Panel
Connector
CORRECT
insertion
position
P09 Error description : Indoor unit ceiling cassette air swing motor do not operate
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