Mitsubishi PUMY-P60NKMU Technical & Service Manual page 42

Check code
High pressure trouble
1302
Chart 4 of 4
●Diagnosis of defectives
Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards.
Diagnosis Remedy
Continued from the previous page
Is there a resistance detected?
Replace the SV1.
No
Yes
<63H equipped model (63HS non-equipped)>
Is the connector for outdoor
controller board 63H disconnected or Reconnect the connector or connect it tightly.
Yes
loose?
No
Replace the outdoor controller board
<63HS equipped model (63H non-equipped)>
Check the 63HS voltage.
Is there a voltage detected? Replace the 63HS.
No
Yes
Replace the outdoor controller board.
42
OCH502C