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Adam AvilaAug 1, 2025
What to do if my Kärcher Pressure Washer turns on and off when the hand spray gun is closed?
- MMatthew PageAug 1, 2025
If your Kärcher Pressure Washer cycles on and off with the hand spray gun closed, it could indicate a system tightness or pressure issue. Begin by checking the trigger gun and O-rings on the high-pressure hose for leaks, replacing them if necessary. Also, check, adjust, or replace the overflow valve, and inspect or replace the pressure retaining valve and pressure switch. Finally, check, clean, or replace the detergent check valve, and examine the pressure and suction valves for any leaks, replacing as needed.