C4-00 — Heat exchanger temperature sensor problem

¿Qué significa C4-00 ?

There is an issue with the temperature sensor located in the heat exchanger.

• Damaged sensor
• Loose wiring
• Incorrect placement of the sensor

Haga clic en los pasos para seguir su progreso.

1. 1

   Check the wiring harness connected to the heat exchanger sensor.

2. 2

   Ensure the sensor is properly seated.

3. 3

   Power off the unit for 1 minute, then power back on.

4. 4

   A technician should verify sensor readings.