P1 - Intake air sensor abnormal

What does P1 mean?

The intake air sensor in the indoor unit, which measures the temperature of the air entering the system, is reporting an abnormal reading. This can lead to incorrect temperature control.

• Faulty intake air sensor.
• Loose or damaged wiring to the sensor.
• Obstructed sensor (e.g., by dust).

Click steps to track your progress.

1. 1

   Turn off the unit at the circuit breaker for 30 seconds.

2. 2

   Restore power and restart the unit.

3. 3

   If accessible, gently clean around the indoor unit's air intake area to ensure the sensor is not blocked.

4. 4

   If the error persists, contact a service technician to inspect or replace the sensor.