What to do if my Kärcher SP 2 Flat Pressure Washer pump does not run?
- JjustinnortonJul 29, 2025
If your Kärcher Pressure Washer pump isn't running or stops suddenly, there might be a few reasons. First, ensure the power supply hasn't been interrupted by checking fuses and electrical connections. Overheating can also cause the thermal protection switch to turn off the pump; if this happens, unplug the pump, let it cool down, and clean the suction area, making sure to prevent dry running. Debris in the suction area can also cause this, so unplug the pump and clean the suction area. Finally, check the float switch position, as it might be stopping the pump.