Ground - Mitsubishi Electric City Multi PUMY-SP112VKM Technical & Service Manual

Check code
High pressure trouble
1302
(UE)
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
Is the connector for outdoor
multi controller circuit board 63H Reconnect the connector or connect it tightly.
Yes
disconnected or loose?
No
Check the 63HS voltage.
Is there a voltage(*) detected?
Replace the 63HS.
No
*For the voltage, refer to "8-6. HOW
Yes
TO CHECK THE COMPONENTS".
Replace the outdoor multi controller circuit
board.
56
OCH668B