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Troubleshooting Your Pressure Washer

troubleshooting your pressure washer

General points to check if a problem occurs

  • Are the engine and fuel switches in the “ON” position?
  • When troubleshooting, always check oil and gas levels.
  • The oil for the pump is a 30W non-detergent mineral oil. Do Not fill over halfway on the sight glass.
  • Is the water tap open?
  • Check the choke and throttle levers.
  • Is the correct nozzle in the lance? Is the nozzle plugged?
  • Only the black nozzle is for soaping at low pressure.
  • Is the water-inlet screen clogged?
  • Hold the gun trigger open while pull starting the engine.
  • Check for O-rings in the lance and quick couplers.
  • Has the unit tipped over? Close the fuel switch and keep pull starting the engine until the excess fuel is burnt up, then open the fuel valve and try again. Some engines will need to be primed every time they are started.
  • Make sure the engine is turned off after each use. It should not be left running without use for longer than 2 minutes as the pump can overheat.

Are you experiencing low pressure?

  • Is there an air leak?
  • Dirty pump valves?
  • Check for worn pump valves or broken valve springs.
  • Check for a worn out spray nozzle.
  • Check for leaks in your plumping or hoses.
  • Troubleshoot your nozzle, is it turned to the highest pressure setting?
  • Is the unloader improperly set?
  • Are the engine RPMs too low?
  • Check if your water supply is sufficient.
  • Check if your engine is getting enough power.

Trouble with high vibrations

  • Dirty pump valves?
  • Do you have a sufficient water supply?
  • Is there are in your water supply?
  • Is the inlet water filter clogged?
  • Clogged or damaged spray nozzle?
  • Make sure it has the correct fuel
  • Has the choke been left on after the engine has warmed up?

If the engine won’t start

  • When troubleshooting the engine, check if it's low on fuel or oil?
  • Worn or dirty spark plugs?
  • Is the switch in the off position?
  • Is the fuel valve in the off position?
  • Is the engine flooded from over choking?
  • When cold starting, was the engine properly choked?

If the starter is hard to pull

  • Low oil in the crankcase or pump assembly.
  • Oil or fuel in cylinders (hydro locked).
  • Pressure built up in the system, relieve this by squeezing the trigger.

 

The publisher of these pages is in no way responsible for any damage caused to you, your pressure washer, anyone else, your property, or anyone else's property by trying to implement or by successfully implementing the above-mentioned performance and services.

 

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