Why is my Kärcher Pressure Washer not reaching high pressure?
- WwalshpatriciaJul 28, 2025
If your Kärcher Pressure Washer isn't reaching high pressure, several factors could be the cause. Ensure that you are using a 5/8 inch or larger garden hose. Check the garden hose for any kinks, leaks, or blockages that may be restricting the water supply. Fully open the water source to ensure adequate inlet water supply. Clean the water inlet filter by removing it and rinsing it in warm water. Lastly, make sure the spray wand is set to the high-pressure position.