Overheated invert- er 439 — Compressor is blocked: Inverter overheating

What does 439 mean?

The inverter has temporarily reached its maximum working temperature due to poor cooling, 3 times within 2 hours or continuously for 1 hour. Check installation and cooling.

• Poor position of inverter – Check screws and paste
• Defective inverter
• Too high current to inverter
• Low supply voltage

Click steps to track your progress.

1. 1

   Ensure the inverter is correctly installed with proper ventilation.

2. 2

   Check mounting screws and thermal paste.

3. 3

   Verify current and voltage levels.

4. 4

   Inspect the inverter for defects.

5. 5

   Contact a technician.