DIY pressure washer repair
Your gas pressure washer gives you the power to blast away dirt, stains and grime from all kinds of surfaces. If your pressure washer isn't getting the job done—maybe the engine won't start or it's not spraying correctly—Sears Parts Direct has the troubleshooting advice to help you diagnose the problem. Check out the symptoms below, and once you figure out what's wrong, our step-by-step repair guides can show you how to replace the parts to get your gas pressure washer working again.
Find out how to prepare your pressure washer for storage, how to choose the correct spray nozzle and get answers to common questions on our articles and videos page. To find the owner’s manual or a complete list of replacement parts for your pressure washer, search for your model number.
Symptoms for gas pressure washers
Choose a symptom to see related pressure washer repairs.
Main causes: using a high-pressure spray tip when applying detergent, clogged siphon tube, chemical injection system fai…
Main causes: overfilling engine with oil, improper fuel/air mixture, choke system problems, dirty carburetor, engine nee…
Main causes: broken recoil spring, damaged recoil starter…
Main causes: dirty air filter, stale fuel, clogged or dirty carburetor, bad unloader valve…
Main causes: insufficient water supply, clogged water inlet screen, clogged pressure hose, faulty pump check valves, stu…
Main causes: damaged recoil starter, oil inside cylinder, locked up engine piston…
Main causes: faulty unloader valve, bad pressure regulator…
Main causes: stale fuel, gummed up carburetor, engine needs tune up, throttle and choke controls need adjustment, bad re…
Main causes: pump running for more than 5 minutes when the spray wand isn't being used, faulty pressure relief valve, ba…
Things to do: tune up the engine, inject pump saver into the water pump when storing the pressure washer for the winter…
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 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 valv…
How to install a pressure washer O-ring kit
O-rings seal fittings on the pressure washer pump. Damaged seals allow water to leak from the pump. Follow these steps t…
How to install a pressure washer chemical injection kit
The chemical injection valve draws detergent into the pump. If it’s not drawing detergent, use a repair kit to replace t…
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 us…
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 ch…
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.
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Spray tips vary in pressure and angle of spray. This guide matches the spray tip to the cleaning job.…
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