F28 (19 flashes) — Compressor position detection circuit fault

What does F28 mean?

This error indicates a problem with the circuit that detects the rotational position of the compressor's motor. This is necessary for proper startup and operation.

• Faulty Power Module
• Damaged Outdoor PCB
• Faulty Compressor
• Incorrect compressor wiring

Click steps to track your progress.

1. 1

   Turn off the power switch before checking any connections.

2. 2

   Verify that the compressor wiring is correctly installed and connections are tight.

3. 3

   Restart the unit.

4. 4

   If the issue continues, a technician must diagnose the Power Module, Outdoor PCB, or compressor.