Heatsink Over Temperature Shutdown — The heatsink is too hot

What does 55 mean?

The heatsink has become too hot, causing the device to shut down to prevent internal damage. This is often due to high ambient temperatures or blocked ventilation.

• The heatsink is too hot.
• High ambient temperature.
• Blocked ventilation holes.
• Insufficient clearance for proper ventilation.
• Fans are not working properly.

Click steps to track your progress.

1. 1

   Ensure the ventilation holes at the top and bottom of the charge controller are clear of obstructions.

2. 2

   Provide sufficient clearance around the charge controller for air circulation.

3. 3

   Check if the ambient temperature is excessively high.

4. 4

   Verify that the fans are operational and spinning freely.

5. 5

   If the issue persists, check for active faults related to fan operation and contact support.