A pressure washer trigger stuck down and refusing to spring back means the wand in your hand is live, and the machine has to be shut off before anything else happens; a pressure washer trigger stuck shut and refusing to squeeze is usually trapped pressure in the hose holding the valve closed rather than a
Pressure washer inlet hose collapsing happens because the pump is asking for more water than the hose can hand over, the pressure inside the hose falls below the pressure of the air outside it, and the atmosphere squashes the hose flat. Nothing is sucking it. Nothing is pulling on the wall. The outside of your
A turbo nozzle not spinning has quietly gone back to being a 0-degree jet, because the rotor inside is driven by water entering the chamber sideways — so anything that blocks the inlet ports, wears the seat the rotor sits in, or starves the swirl of flow will park it. You rarely notice at the
A pressure washer flooded engine has more petrol sitting in the cylinder than will burn, and the fix is to stop pulling, shut the fuel off, take the plug out, open the choke and the throttle fully, and crank the surplus out through the plug hole. That part takes about five minutes and costs nothing.
Pressure washer belt slipping means the belt is sliding in the pulley groove instead of gripping it, so the pump turns slower than the engine is asking it to — and the first thing you lose is pressure, not the belt. The squeal comes second, and the belt itself usually survives long enough to be
Pressure washer water hammer is the pressure spike that travels back up the hose when you release the trigger: the water in the line is still moving at roughly 13 feet per second, the gun shuts in a few thousandths of a second, and that momentum has nowhere left to go except into pressure. You
A pressure washer wand leaking at either of its two joints is an O-ring, and you can have that sorted before the kettle boils; a pressure washer wand leaking from somewhere along the tube itself is corrosion working outwards, and that lance is scrap — there is no acceptable repair for a pressurised tube with
A pressure washer spitting air is delivering air that got into the water somewhere upstream of the tip — and in most cases it got in at a joint you can reach with your fingers, or it never left after the last time you unscrewed something. The jet coughs, drops briefly to nothing, then resumes.
A pressure washer vibrating hard enough that you have stopped working and started watching it has six realistic causes — loose mounting bolts between engine, pump and frame, a damaged engine cooling fan, worn or missing anti-vibration feet, uneven ground under the wheels, a coupling out of line, and a bearing on its way out
If your pressure washer won’t turn off, stop it at the source before you diagnose anything: pull the plug on an electric machine, and on a gas machine turn the engine switch off and then close the fuel valve — the engine will run on for a handful of seconds and starve. That is the
