Check code
1300
Low pressure trouble
Chart 3 of 3
●Diagnosis of defectives
Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards.
Diagnosis Remedy
No
Yes
Yes
No
Yes
No
Continued from the previous page
<63L equipped model (63LS non-equipped)>
<63LS equipped model (63L non-equipped)>
Is there a resistance detected?
Is the connector for outdoor
controller board 63L disconnected or
loose?
Is there a voltage detected?
Replace the SV1.
Reconnect the connector or connect it tightly.
Replace the 63LS.
Replace the outdoor controller board.
Replace the outdoor controller board
Check the 63LS voltage.
Check the resistance of SV1.
38
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