Midea MSMTAU-09HRFN8-QRD6GW - Page 39

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10.2.3 Fan speed
is operating outside of the normal range
diagnosis and solution(E3/F5)
Error Code
E3/F5
Malfunction decision
conditions
When indoor fan speed keeps too low (300RPM) or too high
(1500RPM) for certain time, the unit will stop and the LED will
display the failure.
Supposed causes ● Wiring mistake
● Fan ass’y faulty
● Fan motor faulty
● PCB faulty
Trouble shooting: