An electric pressure washer is a fantastic investment for keeping your home sparkling. But like any powerful tool, its performance and lifespan depend heavily on how well you care for it. Proper maintenance isn’t just about fixing problems; it’s about preventing them. By following a few simple routines after each use, you can ensure your machine delivers peak power for years to come.

Think of maintenance in three phases: what to do before, during, and after you wash.

Before You Start: The Two-Minute Prep

A little preparation goes a long way in preventing damage.

Water Source: Always connect your machine to a clean water source. If you’re using a garden hose that’s been sitting in the sun, let the water run for a minute to clear out any debris before attaching it to the pressure washer.

Inlet Filter: Most models have a small filter screen where the hose connects. Check this periodically for sediment or debris and clean it out.

Oil Check: While many electric models are oil-free, some higher-end pumps require oil. Consult your manual. If yours does, check the oil level before each use to ensure the pump is properly lubricated.

During Use: Protect the Pump

The pump is the heart of your pressure washer, and its biggest enemy is running dry.

Never: Start the machine without water flowing through it. Turn on the water source first, then squeeze the trigger on the spray wand to release any air from the system, and then turn on the power.

Avoid: Letting the machine run for more than a minute or two without pulling the trigger. This causes the water inside the pump to heat up rapidly, potentially damaging seals and components. This is known as "bypass mode."

After You Finish: The Key to Longevity

This is the most critical part of maintenance and is often overlooked.

Flush the System: After you’re done cleaning, turn off the machine but leave the water connected. Squeeze the trigger to release all the pressure and allow fresh water to flush through the system for 30-60 seconds. This clears out any leftover soap or debris.

Winterize (If in a Cold Climate): This is non-negotiable. If water freezes inside the pump, it will expand and crack the housing, destroying it. To winterize, disconnect the machine and hose. Turn it on for just a second to dispel any residual pressure. Then, using a dedicated pump saver fluid or air compressor on a very low PSI, blow out any remaining water from the system. Store it in a frost-free location.

Proper Storage: Drain all water from the hose and the machine. Neatly coil the high-pressure hose—avoid sharp kinks that can weaken it over time. Store the machine and all its accessories in a dry, protected place like a garage or shed.

Regular Check-Ups

Inspect Hoses and Connections: Look for any signs of wear, cracking, or leaks on the high-pressure hose and all fittings.

Nozzle Care: The nozzles are precision parts. Clean them with a pin or needle if they get clogged; never use a metal object that could alter the orifice size.

By incorporating these simple habits, you’re not just cleaning your home—you’re also protecting your tool. A well-maintained electric pressure washer will be a reliable partner for countless DIY projects down the road.