Midea MS11M-09HRFN1-BW0W Service Manual page 39

9.3.6 Overload current protection diagnosis and solution(F0)
Error Code
Malfunction decision
conditions
Supposed causes
Trouble shooting:
Check the power supply. Is it
normal?
Yes
Is there any blocking?
No
Check the compressor
resistance values refer to the
[ Compressor checking ]. Is it
normal?
Yes
Check the connections and
wires .Is it well connection?
Yes
Check the reactor .Is it
normal?
Yes
Replace the outdoor main PCB
F0
An abnormal current rise is detected by checking the specified
current detection circuit.
Power supply problems.
●
System blockage
●
PCB faulty
●
Wiring mistake
●
Compressor malfunction
●
No
Yes
No
No
No
Stop the unit. Check the power
supply
Clear the blockage
Replace the compressor
Correct the connections or
replace the wires.
Replace the reactor
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