Error 12 — Outdoor ambient temperature sensor fault

Was bedeutet 12 ?

There is an electrical failure with the sensor that measures the outdoor air temperature. This sensor connects to the PCB via two wires at Plug CN-14.

• Loose sensor connection
• Open or shorted sensor
• Sensor is out of calibration
• Faulty sensor wiring

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Check the connection at Plug CN-14 for the outdoor ambient temperature sensor.

2. 2

   Inspect the sensor wiring for damage.

3. 3

   Test the sensor resistance against calibration tables.

4. 4

   Replace the sensor if faulty or out of calibration.