Midea MLCAC-UTSM-2010-10

MLCAC-UTSM-2010-10 Troubleshooting
Outdoor Units 81
3. Alarm lamp quick-flash
4. Defrost lamp flashes
Alarm lamp flashes at 5Hz
Judge: Water level switch is abnormal.
Select the cooling mode to make water pump work for a few minutes, then check
whether the system can run normally
Replace indoor PCB
Trouble is solved
Yes
No
Check whether the water drain pipe is blocked
No
Solve to make the water can flow
fluently
Yes
Check whether the water pump can work normally
Replace water pump
No
Yes
Defrost lamp flashes
Judge: Mode conflicts malfunction
Turn the indoor unit to heating mode or turn off the unit