Wilo · Helix VE Pumps
The converter is overheating. This could be due to blocked cooling ribs, fan cover obstruction, or high ambient temperature. The red LED will light up.
Click steps to track your progress.
Turn off the pump and wait 300 seconds.
Clean the cooling ribs at the rear and under the converter.
Clean the fan cover.
Ensure the ambient temperature is not above +50 °C.
Manually acknowledge the fault after resolving the issue.