Mitsubishi Electric PUMY-P112VKM4 Technical & Service Manual page 63

Check code
1302
(UE)
●Diagnosis of defects
Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards.
Continued from the previous page.
Is the resistance detected?
Is the connector for outdoor
multi controller circuit board 63H
disconnected or loose?
Check the 63HS voltage.
Is the voltage(*) detected?
OCH673D
High pressure trouble
Diagnosis
Yes
No
*For the voltage, refer to "8-8. HOW
Yes
TO CHECK THE COMPONENTS".
No
Reconnect the connector or connect it tightly.
Yes
No
Replace the outdoor multi controller circuit
board.
63
Chart 4 of 4
Remedy
Replace the SV1.
Replace the 63HS.