Midea MOUA-24HN1

MCAC-UTSM-2008-11 Troubleshooting
Outdoor Units 121
E7: EEPROM malfunction
E8: Full-water malfunction
E7
EEPROM chip is broken
Check whether the main control chip 9177 is broken
Replace 9177 chip
Yes
No
Check PCB board or replace the main control board
Replace EEPROM
Yes
No
E8
Check whether the water-level switch is inserted well
Check whether the water-level switch is broken
Check PCB board or replace the main control board
Replace the water-level switch
Yes
No
Check whether the water pump is normal
Yes
Insert the water-level switch well
No
Yes
Replace the water pump
No