What does XX-02 mean?

The crankcase heater for a compressor (e.g., B1) is defective or there is a wiring fault. The compressor will be shut down.

• Crankcase heater element is faulty.
• Wiring to the heater is damaged or loose.
• Control board issue.

Click steps to track your progress.

1. 1

   Inspect the wiring to the crankcase heater for damage.

2. 2

   Check the resistance of the crankcase heater element (if possible).

3. 3

   Ensure the heater is receiving power.

4. 4

   If the fault continues, the heater or associated wiring needs repair.