Check code
1302
High pressure trouble
●Diagnosis of defectives
Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards.
Diagnosis Remedy
Chart 4 of 4
No
No
Yes
Continued from the previous page
Is there a voltage detected?
Replace the SV1.
Replace the 63HS.
Replace the outdoor controller board.
Yes
No
<63H equipped model (63HS non-equipped)>
<63HS equipped model (63H non-equipped)>
Is the connector for outdoor
controller board 63H disconnected or
loose?
Reconnect the connector or connect it tightly.
Replace the outdoor controller board
Check the 63HS voltage.
Is there a resistance detected?
Yes
42
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