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Pressure Washer Maintenance Guide Published 14/03/2007

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Taking care of your pressure washer will prolong its life and keep it running smoothly. Key to taking care of your appliance is to regularly perform simple routine maintenance, as this can help you avoid bigger problems in the future.

Before & During Use:

Water Components:

  • Before use, always check the inlet filter for dirt and debris.
  • Look to see if the pressure washer nozzle is blocked by dirt or grit.
  • Connect the water supply hose and, without the lance attached, squeeze the trigger gun to run water through your pressure washer until the water flow is constant. Then plug the pressure washer into the electric supply.
  • Unless you're drawing water from an open water source, such as a water bucket, always have a minimum of 10 metres (25 feet) of uncoiled hose between the water tap and your machine. The internal diameter of the feed water hose should be around 12mm (1/2").
  • Water regulations require the use of a back-flow preventer valve at the tap end of the supply hose. Only use a full flow connector to connect the hose to the machine.

Electrical Components:

  • Always fully uncoil any extension lead during use.
  • Use a RCD whenever you use your pressure washer, as they will reduce the risk of electrocution and fires caused by electrical faults.
  • Never use defective electrical connections or extension cables. If any cable is damaged, don't use the appliance until you have replaced the cable.
  • Never touch the mains plug or socket with wet hands.
  • Make sure the connection between the connection line and extension cable never lies in water.

After Each Use:

  • Wipe down the pressure washer’s casing.

Every Month:

  • Check connections for wear or water damage - make sure hoses, pipes and connectors are in good condition.
  • Check flex and plug.
  • Clean the nozzle to keep water flow consistent.
  • Clean the filter regularly to prevent blockages.

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