P1 - Intake air sensor abnormal in indoor unit

What does P1 mean?

This error means that the intake air sensor in the indoor unit is malfunctioning, providing incorrect or no readings.

• Faulty intake air sensor.
• Loose or disconnected wiring to the intake air sensor.
• Damage to the sensor or its connectors.

Click steps to track your progress.

1. 1

   Turn off the power to the indoor unit at the circuit breaker.

2. 2

   Gently clean around the intake air sensor area, ensuring no dust or debris is covering it.

3. 3

   Check for any visible signs of damage to the sensor or its wiring (professional check advised).

4. 4

   If the problem continues, contact a qualified technician to test or replace the sensor.