F21 (10 flashes) — Outdoor coil temperature sensor

Was bedeutet F21 ?

This error means the sensor monitoring the temperature of the outdoor coil has failed or is providing incorrect readings.

• Faulty defrost temperature sensor
• Damaged Outdoor PCB

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Ensure the sensor is properly connected and not damaged.

2. 2

   Restart the air conditioner.

3. 3

   If the error persists, the sensor or Outdoor PCB may need replacement by a technician.