Code 76 — Low stage didn’t start three times

What does 76 mean?

The system's low stage compressor has failed to start successfully after three attempts. This indicates a problem preventing low-stage operation.

• Low stage compressor failure
• Wiring issue to the low stage compressor
• Low refrigerant charge
• Electrical fault

Click steps to track your progress.

1. 1

   Ensure the system has adequate refrigerant charge.

2. 2

   Check wiring connections to the low stage compressor.

3. 3

   Verify electrical supply to the low stage compressor.

4. 4

   Contact an HVAC technician for compressor diagnosis.