E404 — Outdoor Overload Protection Control Active when Compressor Stops

Was bedeutet E404 ?

This error signifies that the outdoor unit's overload protection has activated while the compressor is stopped, likely due to issues with the fan, electronic expansion valve (EEV), or temperature sensors.

• Outdoor unit fan or motor not operating normally.
• Malfunction of the Electronic Expansion Valve (EEV).
• Problem with the indoor unit heat exchanger temperature sensor.
• Blocked indoor unit air inlet.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Turn off the air conditioner at the main power switch or circuit breaker and wait 30 seconds.

2. 2

   Confirm that the outdoor unit's fan is operating without obstruction.

3. 3

   Check the indoor unit's air filters and ensure the inlet is clear for proper airflow.

4. 4

   Restore power. If the issue continues, contact customer support.