Error 407 - Compressor stop due to high pressure protection

What does 407 mean?

The compressor has stopped operating because the system detected excessively high pressure, activating a safety shutdown to prevent damage.

• Overcharge of refrigerant in the system
• Blocked condenser coil or restricted airflow to the outdoor unit
• Faulty high-pressure sensor

Click steps to track your progress.

1. 1

   Check the outdoor unit for any obstructions blocking airflow to the condenser coil (e.g., debris, plants).

2. 2

   Ensure the condenser coil is clean; carefully clean it if it's dirty.

3. 3

   If the problem persists, a qualified technician should check the refrigerant levels and the high-pressure sensor.