F20 -01 — Room temperature sensor is shorted or disconnected

What does F20 -01 mean?

The sensor that measures the temperature in the room has a fault. It may be short-circuited or disconnected, leading to inaccurate temperature readings.

• The room temperature sensor is damaged.
• The wiring to the room temperature sensor is loose.
• The sensor has become disconnected.

Click steps to track your progress.

1. 1

   Inspect the room temperature sensor for visible damage.

2. 2

   Check the wiring connections to the sensor.

3. 3

   Ensure the sensor is properly attached.

4. 4

   Turn off the unit, unplug it, wait 30 seconds, and plug it back in to reset.