MrCool Indoor Blower Failure

Outdoor unit runs but indoor fan does not blow air; indoor unit appears powered but no airflow.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Failed indoor fan motor, Obstructed blower wheel, Faulty indoor PCB fan driver, Loose fan motor connector

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker before opening the indoor unit.

Steps:

  • Check settings: Confirm the unit is not in a mode that intentionally stops the fan (e.g., certain dry or sleep modes).
  • Inspect blower: Remove the front cover and check the blower wheel for obstructions.
  • Check wiring: Verify the indoor fan motor connector is firmly plugged into the PCB.

Repair: If the fan still does not run, replace the indoor fan motor assembly. If a new motor does not fix it, the indoor control board may need replacement by a technician.

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Repair Difficulty

Medium 3/5

Required Part

Indoor Fan Motor
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