Midea DLFSHBH12XAK - Fan Speed Operating Outside Normal Range (EH03)

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DIAGNOSIS AND SOLUTION (CONT)
Fan speed is Operating Outside of the Normal Range (EH03)
Description: When the indoor fan speed maintains a low speed (ex. 300RPM) or a speed that is too high (ex.1500RPM) for a
certain time, the unit stops and the LED displays the failure or when the outdoor fan speed registers below 200RPM or over
1500RPM for an extended period of time, the unit stops and the LED displays the failure (EHO3).
Recommended parts to prepare:
•Wiring
• Faulty fan assembly
• Faulty fan motor
• Faulty PCB
Troubleshooting and Repair:
YES
Is it within normal parameters ?
Replace the fan motor.
Is there still a problem? The unit is operating normally.NO
YES
Does it turn easily ?
Find the cause of the problem and resolve it.NO
Check the fan motor wiring.
YES
Is it improperly wired ? Ensure the proper connections.
Measure the voltage for
the fan motor from the PCB.
YES
NO
Power o, then restart after 2 minutes.
Shut o the power supply.
ROtate the fan by hand.
Replace the
indoor/outdoor PCB.