Tempstar ductless mini-split indoor unit displays F8 and unit stops after short operation

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.

Possible Causes

Failed indoor DC fan motor, Blocked blower wheel, Loose motor connector, Faulty indoor control board

Safety first: Turn OFF power to the indoor unit.

Steps:

1. Remove front cover and filters: Access the blower wheel area.
2. Check for obstructions: Remove any debris or buildup on the blower wheel.
3. Inspect motor connector: Ensure the DC motor plug is firmly connected to the indoor control board.
4. Spin blower by hand: It should rotate freely. If stiff, the motor bearings may be failing.
5. Restore power and test: If F8 persists, the motor or board will need replacement by a technician.

Medium 3/5

Indoor DC Fan Motor

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