Midea MHC-V4W/D2N8-B

M thermal Mono
202004 63
4.7 EE Troubleshooting
Digital display output
Description
 Hydronic system EEPROM error.
 M thermal Mono stops running.
 Error code is displayed on hydronic system main control board for refrigerant system and user interface.
Possible causes
 Hydronic system main PCB EEPROM is not connected properly.
 Hydronic system main PCB damaged.
Procedure
EE
Hydronic system EEPROM
1
is not
connected properly
Yes
Ensure the EEPROM is connected
properly
No
Replace hydronic system main PCB
Notes:
1. Hydronic system main PCB EEPROM is designated IC18 on the hydronic system main PCB (labeled 29 in Figure 4-2.1 in Part 4, 2.2 “Main PCB for Hydronic
System”).
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