F6
Senville Indoor Fan Speed Feedback Fault

Indoor unit displays F6; compressor may run at reduced capacity or shut down.

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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 DC fan motor with tachometer feedback, Obstructed blower wheel, Loose fan motor connector, Faulty indoor PCB fan driver

How to Fix / Troubleshooting

Safety: Turn off power at the breaker.

  • Step 1 – Clean and inspect blower: Remove front cover and filters. Clean dust from blower wheel and ensure nothing is blocking rotation.
  • Step 2 – Check fan connector: Locate the indoor fan motor connector on the PCB and reseat it firmly.
  • Step 3 – Test fan operation: Restore power and run in FAN mode. If the fan does not reach normal speed or is intermittent, the motor may be failing.
  • Step 4 – Replace fan motor: Remove the blower assembly and install a new Senville indoor DC fan motor, transferring any brackets or mounts as needed.
  • Step 5 – PCB check: If a new motor does not resolve F6, the indoor PCB may be defective.
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Repair Difficulty

Medium 3/5

Required Part

Indoor Fan Motor
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