Midea MCH2U-18PHH2 Service Manual page 74

8.4.2.7 E8 (Outdoor fan speed malfunction) diagnosis and solution
Error Code
Malfunction conditions
Potential causes
Trouble shooting:
E8
When outdoor fan speed keeps too low (300RPM) or too
high(2400RPM) for certain time, the unit will stop and the LED will
display the failure.
● Wiring mistake
● Faulty Fan assembly
● Faulty Fan motor
●
Faulty PCB
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