304 Interior temperature too high - Inverter internal temperature is too high.

What does 304 mean?

The inverter has detected that its interior temperature is too high, causing a brief interruption in operation. It will attempt to cool down and restart automatically.

• High ambient temperature.
• Restricted airflow to the inverter.
• Internal cooling system issues.

Click steps to track your progress.

1. 1

   Check that the inverter's cool air vents and cooling elements are not blocked.

2. 2

   Carefully clean any dust or debris from the vents using compressed air if necessary.

3. 3

   Ensure there is adequate ventilation around the inverter. If the code recurs, contact your system installer.