R
Richard MillerAug 10, 2025
Why does my Kärcher HD 2.5 / 24 P have varying output pressure?
- JJulie VargasAug 10, 2025
If the output pressure of your Kärcher High pressure washer is fluctuating, it could be due to several reasons. First, try squeezing the trigger to release any built-up pressure. Ensure that the water supply is at full force and inspect the garden hose for any kinks, leaks, or blockages. The pump might be sucking air; in that case, check that all hoses and fittings are airtight and purge the pump by squeezing the trigger gun until a steady water flow emerges from the nozzle. Also, the water inlet filter or spray nozzle could be clogged. Clean the filter in warm water and clear any debris from the nozzle with a fine needle. Finally, if there's calcification in the gun, hose, or spray wand, run distilled vinegar through the detergent suction tube.

