November 1, 2015

7 steps for winterizing and storing a pressure washer

By Sears PartsDirect staff
7 steps for winterizing and storing a pressure washer.
7 steps for winterizing and storing a pressure washer.

The brutally cold winter months can wreak havoc on your pressure washer, causing expensive and sometimes permanent damage to the pump and fuel system.  You can prevent freezing temperatures from damaging your pressure washer by following these simple steps.

  1. Shut the pressure washer off and disconnect it from the water supply hose.

  2. Disconnect the pressure hose from the spray gun and the high-pressure outlet on the pump. Drain any water from the hose, the gun and the nozzle extension. Wipe these items dry with a soft cloth.

  3. Pull the recoil on the pressure washer about 6 times to remove any liquid in the pump.

  4. Coil the pressure hose around the hose wrap on the pressure washer accessory tray.

  5. Use Pressure Washer Pump Saver to keep the pistons and seals lubricated and to minimize freezing in the pump. Follow the instructions included with the product.

  6. Drain the gasoline from the fuel tank—your owner's manual has instructions—and run it to burn off any remaining fuel. An alternative is to add fuel stabilizer to the tank of gas, which prevents the fuel from becoming stale and forming gum deposits that can damage the fuel system.

  7. Store the pressure washer in a dry area.

Symptoms for gas pressure washers

Choose a symptom to see related pressure washer repairs.

Main causes: pump running for more than 5 minutes when the spray wand isn't being used, faulty pressure relief valve, bad unloader valve
Main causes: using a high-pressure spray tip when applying detergent, clogged siphon tube, chemical injection system failure
Main causes: faulty unloader valve, bad pressure regulator
Main causes: damaged recoil starter, oil inside cylinder, locked up engine piston
Main causes: stale fuel, gummed up carburetor, engine needs tune up, throttle and choke controls need adjustment, bad recoil starter
Main causes: overfilling engine with oil, improper fuel/air mixture, choke system problems, dirty carburetor, engine needs tune up
Main causes: broken recoil spring, damaged recoil starter
Things to do: tune up the engine, inject pump saver into the water pump when storing the pressure washer for the winter
Main causes: insufficient water supply, clogged water inlet screen, clogged pressure hose, faulty pump check valves, stuck unloader valve

Repair guides for gas pressure washers

These step-by-step repair guides will help you safely fix what’s broken on your pressure washer.

How to replace a pressure washer unloader valve

The unloader valve recirculates water to protect the pump from damage. If the unloader valve is defective, replace it using the steps in this repair guide.

Repair difficulty
Time required
 15 minutes or less
How to install a pressure washer check valve kit

Air in the inlet water supply can damage the check valves. If the pump won’t build up pressure due to damaged check valves, follow these steps to replace the check valves.

Repair difficulty
Time required
 120 minutes or less
April 1, 2013
By Lyle Weischwill
How to replace a pressure washer pump

The pump can be damaged by air in the inlet water supply or by chemicals that remain in the pump body after using the chemical injection system. Follow these steps to replace a damaged pump.

Repair difficulty
Time required
 30 minutes or less

Articles and videos for gas pressure washers

Use the advice and tips in these articles and videos to get the most out of your pressure washer.

March 1, 2016

Getting the most from a pressure washer

By Sears PartsDirect staff

Learn how to get the best results when using a pressure washer.

January 1, 2016

Choosing the correct spray tip for a pressure washer

By Sears PartsDirect staff

Spray tips vary in pressure and angle of spray. This guide matches the spray tip to the cleaning job.

November 1, 2015

7 steps for winterizing and storing a pressure washer

By Sears PartsDirect staff

Follow this advice to winterize your pressure washer.