Error 416 — Compressor operation stop due to discharge temperature protection control

What does 416 mean?

The compressor has shut down because the discharge temperature of the refrigerant was excessively high, triggering a safety mechanism. This protects the compressor from overheating damage.

• Refrigerant overcharge or non-condensable gases in the system
• Dirty condenser coil restricting heat rejection
• Faulty outdoor fan causing inadequate airflow
• Restriction in the liquid line or suction line

Click steps to track your progress.

1. 1

   Switch off the outdoor unit's power and let it cool down for at least 30-60 minutes.

2. 2

   Clean the outdoor coil thoroughly to ensure proper heat rejection and airflow.

3. 3

   Check that the outdoor fan is operating correctly and not obstructed.

4. 4

   Ensure no objects are blocking airflow around the outdoor unit.

5. 5

   This issue typically requires a professional technician to diagnose and resolve, as it may involve refrigerant levels or compressor health.