Error E41 / Outdoor Red LED Flashes Once — Inverter power transistor overheated

What does E41 / Outdoor Red LED 1 flash mean?

Error E41, indicated by one flash of the outdoor unit's red LED, means the power transistor for the inverter has overheated. This can damage the inverter and disrupt system operation.

• The power transistor for the inverter has overheated

Click steps to track your progress.

1. 1

   Turn off the main power supply to the air conditioner for at least 30 minutes to allow components to cool down.

2. 2

   Ensure the outdoor unit is not exposed to direct sunlight for prolonged periods without proper shading.

3. 3

   Check for any obstructions around the outdoor unit that might impede ventilation.

4. 4

   Clean the outdoor unit's coils if they are dirty.

5. 5

   If the error persists after cooling and cleaning, contact a professional technician as internal components may need inspection or replacement.