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Michael HarrisAug 18, 2025
What to do if my Nilfisk-Advance MH 7P Pressure Washer is leaking or operating in an inadmissible condition?
- MmarianormanAug 18, 2025
If your Nilfisk-Advance Pressure Washer is experiencing leakage or operating in an inadmissible condition due to short-time operation, the machine will switch off after three short-time operations. To reset it, turn the main switch to the “OFF” position and then start it again, keeping the trigger squeezed for longer than 3 seconds. If a leak in the hose or gun causes the machine to start and stop briefly three times, it will switch off. You can also repair the spray gun, replace the high-pressure hose, and retighten any loose screw fittings. If the detergent tank is empty, fill it or set the detergent metering to “OFF”. Clean the water inlet filter, and repair any leaks causing the high-pressure pump to draw in air.
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