C9 - Return air sensor fault

Was bedeutet C9 ?

The sensor measuring the temperature of the air returning to the unit is open or short circuited.

• Return air sensor is open or short circuited.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Locate the return air sensor and check its connection.

2. 2

   Inspect the sensor and its wiring for any damage.

3. 3

   A faulty sensor or wiring will need to be replaced by a qualified technician.