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austin98Aug 1, 2025
Why is my Simoniz S1400 motor running but the pump not building maximum pressure?
- QqbradleyAug 1, 2025
If your Simoniz Pressure Washer motor isn't building maximum pressure or has irregular pressure, it could be due to several reasons. First, ensure the faucet is fully open. If the unit was exposed to freezing temperatures, thaw it completely, including the hose, gun, and wand. Check and clean the water inlet screen if it's clogged. To remove air from the pump, run the pressure washer with the gun open and the wand removed until a steady stream of water is released. Also, make sure the adjustable pressure knob is set to the maximum position. If these steps don't resolve the issue, the suction or discharge valves might be clogged or worn out, or the bypass valve may not be operating effectively.