How to Winterize an Electric Pressure Washer

Winterizing an electric pressure washer is important to ensure it will remain in good condition throughout the winter months. If you do not properly winterize your electric pressure washer, it may become damaged due to cold temperatures and lack of use. This article will provide a simple step-by-step guide on how to winterize your electric pressure washer for the winter months properly.

How to Winterize an Electric Pressure Washer

The main advantage of winterizing an electric pressure washer is that it can help prevent costly repairs and prevent damage to the machine. Winterizing helps protect vital components from freezing temperatures, which can cause them to become inoperable or crack, resulting in a need for expensive replacements.

Winterizing also protects the motor and pump from rusting and seizing due to water build-up, which can drastically reduce the lifespan of the pressure washer. In this blog post, You will learn how to winterize an electric pressure washer in detail.

Step-by-Step Processes for How to Winterize an Electric Pressure Washer

Step 1: Inspect the Pressure

Before winterizing your pressure washer, you must inspect it to ensure the pressure is adequate. Use a psi gauge and check for any signs of leaks or wear and tear on the hoses or connections. The pump of an electric pressure washer contains water that needs to be drained out before storage. Connect a garden hose to the pump’s drain valve and let the water run until it stops flowing.

Step 2: Flush Out the Hoses and Nozzles

Connect a garden hose to the gun of your pressure washer, and turn it on for several minutes. This will flush out any residual dirt or debris that may be in the hoses or nozzles. If your pressure washer has a built-in soap tank, you need to drain it out before storage. This will help prevent any bacteria or mold growth that can occur if it is left full of soapy water for an extended period of time.

Step 3: Disconnect All Power Sources

Before you store your pressure washer for the winter, it’s important to disconnect all power sources. Unplug the power cord from the wall and remove any batteries if present. Thoroughly clean each pressure washer component, including hoses, nozzles, guns, and tanks. Use a damp cloth to wipe down the machine’s exterior to remove any dirt or residue.

Unplug the Power Cord From the Wall

Step 4: Lubricate Components

To further protect your pressure washer from corrosion, lubricate all moving parts with a light oil like WD-40. This will help prevent rust and wear and tear on metal components during long storage periods.

Covering your pressure washer will help protect it from dust, dirt, and moisture. Use a waterproof cover or tarp to keep water and debris away from the machine.

Step 5: Store in a Cool, Dry Location

Choose an appropriate storage location that is cool, dry, and out of direct sunlight. Storing your pressure washer in a basement or garage can help protect it from extreme temperatures and weather conditions.

If your pressure washer has a rechargeable battery, you should recharge it every few months to ensure it is ready for use when needed. This will ensure optimal performance of your pressure washer during the next season.

By following these steps, you can effectively winterize your electric pressure washer and protect it for many years. It is important to remember that winterizing will help extend the life of your machine by preventing corrosion or rust buildup.

Safety Tips for How to Winterize an Electric Pressure Washer

  1. Always wear protective gear such as safety glasses and gloves when operating a pressure washer.
  2. Unplug the electric pressure washer before performing any maintenance or cleaning on it.
  3. Check for leaks in the hose by running water through it at medium pressure and ensuring no water escaping from any fittings or connections.
  4. Clean the pressure washer by draining all the water from its tank and using a brush to remove dirt, grime, and debris.
  5. Inspect all electrical connections for corrosion or wear and replace any worn parts with new ones.
  6. Store the electric pressure washer in a dry area away from direct sunlight because excessive heat can damage the internal components.
  7. Check the water pump regularly and apply lubricating oil to keep it working properly during long periods of storage.

Following these safety tips will help ensure your electric pressure washer is winterized and ready for use when needed.

Always Wear Protective Gear

What Type of Maintenance Should Be Done to Winterize an Electric Pressure Washer?

Winterizing an electric pressure washer is a simple process that requires minimal steps. The most important step to winterize your machine is to drain the detergent tank before storing it away during the colder months. This will ensure that no residual detergents or soaps get left inside and cause corrosion.

Additionally, it’s recommended to run a cleaning solution through your pressure washer to ensure any leftover dirt and debris is removed from the internal components.

It’s important to properly clean and lubricate all moving parts to protect your pressure washer during storage. This will help keep them in good condition over the winter months. Ensure to follow the manufacturer’s instructions for cleaning and lubrication when prepping your machine for winter storage.

Once you’ve cleaned and lubricated all of the components, it’s a good idea to coat them with an appropriate corrosion inhibitor. This will help protect the metal parts from rusting or corroding while in storage.

How Often Should the Pressure Washer Be Serviced Before Storing It in Cold Weather?

As with any cold-weather equipment, regular servicing and maintenance of your electric pressure washer are essential for optimal performance when you use it in the future. This includes winterizing the pressure washer before storing away in cold weather.

Before storing an electric pressure washer away for the winter, it’s important to carry out any necessary repairs or maintenance and ensure all components function properly.

Regular Servicing and Maintenance

This includes checking the pressure hose, trigger gun, wand, nozzle tips, and other parts for leaks or wear-and-tear that should be addressed before storing away in cold temperatures. Also, after every use, it’s important to clean out water from the pressure washer pump to prevent freezing during storage.

To do this, run the pressure washer at low pressure until all of the water has been removed, and the pump is dry. In addition to these steps, check the manufacturer’s recommended maintenance schedule for other periodic tasks that should be completed before storing away your electric pressure washer over the winter months.

How Do You Clean the Interior Components of Your Pressure Washer After Use?

Once you’ve winterized your electric pressure washer, it’s also important to clean the interior components of the machine after each use. This will help keep it running efficiently for years to come. Start by unplugging the power cord and disconnecting any hoses or attachments from the unit.

Remove any remaining water or debris in the pump by tipping it over and draining the remaining water. Next, you’ll want to flush out the pump with warm water and detergent.

You can use a car-wash brush or a garden hose attachment to clean the interior parts of your pressure washer. Be sure to take your time while scrubbing, especially around more intricate parts like the seals or o-rings.

After cleaning the interior components, rinse the pressure washer with clean water to remove any remaining detergent or debris. Once you’re finished, check for any signs of damage that may have occurred during the winterization process, and make sure all parts are securely fastened in place before storing your electric pressure washer away until next season.

How Long Can an Electric Pressure Washer Stay Store Without Being Used?

It is important to winterize any electric pressure washer that will not be used for an extended period of time. Suppose you plan on storing your pressure washer for more than a few months.

In that case, it’s essential to prepare the machine properly to prevent damage from freezing temperatures and other elements. A typical electric pressure washer can safely remain in storage for up to one year without being used. Before putting the pressure washer away, it’s important to drain the water reservoir, flush out any debris or dirt, and thoroughly clean the machine.

Most electric pressure washers also have an oil reservoir that needs to be emptied. Add a few drops of engine oil to the intake and exhaust ports to protect the engine from corrosion. Once all of these steps are completed, it is recommended that you cover your pressure washer with a tarp or sheet before storing it in an area where there will be no water seepage or moisture.

As an added layer of protection, consider placing the machine on a flat surface with some padding underneath.

Flat Surface With Some Padding Underneath


In conclusion, winterizing an electric pressure washer is a simple task to help you ensure your machine operates correctly when spring arrives. The steps to winterize an electric pressure washer include draining excess water, ensuring the nozzle and hoses are disconnected, cleaning and lubricating moving parts, and protect from freezing temperatures.

With proper maintenance and winterization of your electric pressure washer, you can be sure you’re ready to go when warmer weather arrives. I hope this article has been beneficial for learning how to winterize an electric pressure washer. Make Sure the precautionary measures are followed chronologically. 

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Enrique Howard

Hi, I am Enrique. I started my professional life as a handyman and did a lot of external and internal repair of home and office with a little bit of electric and plumbing support. I have extensive experience in tools testing such as drilling, turning, milling, and non-conventional machining like EDM. So let me help you on your journey towards becoming an enlightened DIYer with amazing tools that you can use on your project.

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