PC0L — Low temperature protection of outdoor unit

What does PC0L mean?

The system has entered a low temperature protection mode for the outdoor unit. This typically occurs when ambient temperatures are too low for operation.

• Operating the unit in temperatures below its specified range
• Faulty outdoor temperature sensor
• System attempting to defrost

Click steps to track your progress.

1. 1

   Verify that the outdoor operating temperature is within the manufacturer's specified limits.

2. 2

   Check the outdoor temperature sensor for proper function.

3. 3

   Allow the unit to reach a suitable operating temperature if it is too cold outside.

4. 4

   Consult the manual for minimum operating temperatures.