Midea MHC-V6W/D2N8-B User Manual

M thermal Mono
64 200204
Midea M thermal Mono Service Manual
4.8 F1 Troubleshooting
Digital display output
Description
 Low DC bus voltage.
 M thermal Mono stops running.
 Error code is displayed on hydronic system main control board for refrigerant system and user interface.
Possible causes
 The DC bus voltage is too low.
Procedure
F1
Power supply is abnormal.
Yes
Provide normal power
No
LED light is OK
Yes
Voltage of PN is 380V.
Yes
Check the main board.
No
IGBT voltage is not correct.
Yes
The inverter board is
damaged, change it.
No
The invert board is ok. Check
the rectifier bridge.
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Midea MHC-V6W/D2N8-B Specifications

General

Brand	Midea
Model	MHC-V6W/D2N8-B
Category	Air Conditioner
Language	English