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Maria Barr DVMAug 12, 2025
Why is the output pressure of my Kärcher Pressure Washer varying high and low?
- EEmily WatersAug 12, 2025
If the output pressure is varying, there could be several reasons: * There is not enough inlet water supply. Turn the water on full force and check the garden hose for kinks, leaks, or blockages. * The pump is sucking air. Check that hoses and fittings are airtight and purge the pump by squeezing the trigger gun until a steady flow of water emerges through the nozzle. * The water inlet filter is clogged. Remove the filter and rinse it out in warm water. * The discharge nozzle is obstructed. Blow out or remove debris with a fine needle. * The gun, hose, or power nozzle is calcified. Run distilled vinegar through the detergent tank.