Alert Code 433 — Compressor over-current

What does 433 mean?

The compressor is drawing too much electrical current. The system will stop the compressor and fan. If this condition happens multiple times within an hour, the system will lock out.

• Compressor phase current is too high
• Inverter issue
• Outdoor control issue

Click steps to track your progress.

1. 1

   Check the outdoor control software version via the thermostat.

2. 2

   Enable software auto-update or update the software if not connected to the internet.

3. 3

   Disconnect power to both indoor and outdoor units, then reconnect and restart the system.