C4 — Heat exchanger temperature sensor fault

Was bedeutet C4 ?

This code points to an issue with the sensor that measures the temperature of the heat exchanger. Accurate readings are vital for operation.

• Faulty heat exchanger temperature sensor
• Loose connection to the sensor

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Inspect the wiring connection to the heat exchanger temperature sensor for security.

2. 2

   Ensure the sensor itself is not physically damaged.

3. 3

   A technician may need to test or replace the sensor if the connection is good.