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Donald DavisAug 16, 2025
Why does my Michelin MPX25DTS pump not reach working pressure?
- RRobin RussoAug 16, 2025
There are several reasons why your Michelin Pressure Washer pump might not be reaching working pressure. It could be due to a worn nozzle, which requires replacement. Alternatively, the water filter might be clogged and needs cleaning. Ensure the water supply is fully turned on and that there are no air leaks in the hose fittings. Trapped air in the pump can also cause this issue; turn off the appliance and repeatedly depress the gun trigger until the water flow is steady, then switch it back on. Check that the adjustable nozzle is correctly positioned on the (+) setting. Also, the thermostatic valve might have tripped, requiring you to wait for the correct water temperature to be restored. Finally, if you're using an open container, make sure the suction height is not more than 0.5 m.
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