Why is the display of my AL-KO HWA 4500 Comfort pump on but the pump does not start?

Question

Accepted Answer

If the display of your AL-KO HWA 4500 Comfort pump is on but the pump does not start, several causes may explain this malfunction:

Checks to perform:

Presence of error messages: Check the screen for any error codes or messages that may indicate the nature of the problem.
Power supply: Ensure that the pump is properly plugged in and that the outlet is functioning normally.
Overheating: If the pump has been running for a long time, it may be in thermal protection mode. Allow it to cool down for a few minutes before attempting to restart.
Water level: Check that the water source is sufficient, as the pump may be equipped with a safety feature preventing it from starting without water.
Reset: Turn off the pump, wait a moment, then turn it back on to attempt a reset.

If despite these checks the pump still does not start, it may be necessary to contact a specialized technical service.