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Sometimes you may have to allow a little time for the pump to prime itself and remove the air trapped inside. With the pressure washer at idle and the pressure hose fully extended, squeeze the trigger and see if you get pressure in a couple of minutes.
If you get no joy from that, your pump has likely checked out on you.
Hope this helps.
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The number one cause of low or no pressure when using a pressure washer is a blocked or worn nozzle. Blocked nozzles will prevent water from escaping, while a worn nozzle will allow too much water to pass through, causing the pressure to drop.
In most occurrences, the first symptom of an unloader valve going bad is no pressure from the wand when the trigger is pressed. This happens when the unloader valve gets stuck open and does not allow water to enter the hose and trigger.
If your pressure washer is refusing to work or even turn on, the culprit could potentially be the power switches. Most pressure washers use two micro switches that disconnect both the live and neutral connections between the supply and the motor. These switches can jam cutting the power out from reaching the motor.
Each time the power cord is plugged in to an outlet, the Reset button on the GFCI module must be pressed down to connect to electricity. Check to see if the Reset button has been pressed. Next, confirm the small plastic window below the Reset button shows RED in the window.
If the pressure washer does not start, then the first thing to check is the fuse in the plug.
If the pump is leaking, the cause may be minor and easy to repair. Check the seals, packings, and O-rings for wear. These can easily be replaced, saving you the cost of a new pump. However, major leaks such as the ones caused by cracked or damaged plungers, can lead to pump failures.
If your pressure washer starts and runs fine, but there`s no pressure or no water coming from the pump, it could be a clogged wand, hose or inlet filter. Fortunately, this is an easy pressure washer problem to repair. Begin isolating the problem by hooking a water hose to the washer`s inlet and turning it on.
Unloader valve failure — Power lags also result from failed unloader valves. This problem can be diagnosed by manually enacting the valve function. Open the tank and drain out the air and water, then close and power back up. If the compressor bogs down once again, the valve needs to be replaced.
Discover Relevant Questions and Answers for Your Specific Issue
the most relevant questions and answers related to your specific issue
Need help in getting Honda engine on NorthStar pressure washer to run.
Could be low water pressure I have found.Also, I purchased a can of “stuff” at Lowes today which allows you to circulate a liquid substance which lubricates the pressure pump….the pump could be frozen up…I have a rotating nozzle which I bought…and it had frozen up…this stuff works
Oil appears to have come out of the oil filler cap. Is this a sign of overfilling the oil, or something else?
Id definitley say its over filled. try checking the dipstick
Water does not come out of the lance when I squeeze the trigger
HI it sounds like you may just have a blocked jet on the end of your lance. Please remove and clean.
My coleman powermate 2750 pressure washer locks the engine up when the trigger is pulled. after a few seconds you can restart it.it comes up to good pressure but kills the motor. Some have told me they thought it was teh pump, but the sprays a little. I would think if the pump was bad it wouldn’t spray at all? Comments?
All i can say is its not a good mechine I owen and repair washers and pumps and use them in line of business thats all i can tell you sorry
This pressure washer will continue to build pressure when you let off the trigger. I have replaced the hose 3 times because the pump continues to pump until it blows the hose. The pump will not stop pumping!
You have a defective pressure release valve or someone has misadjusted.
My pressure washer will start for a second and then shuts down. I just bought it from a friend and don,t think the springs to the govner are right but not sure.would like a skicamitc of the engine or manual so i can see if they are right
When you start your engine open wand trigger this will probably allow you to get the engine warmed up and I think it’ll work for you it used to work for us .
What oil do i use in the pump? The oil is milky and needs changing.
Well you can use direct recommended from Ace Hardware see link.
They recommend 250 hours, but i’d change more often, like you said when it’s milky. If it begins to get water in the oil sooner, that indicates your piston to crankcase seal is beginning to leak.
Honda powwer boss 3000-whenyoupull the handale to spray it kills the engine
Sounds like the unloader (regulator). Try removing the nozzle, the pull the trigger with the engine running. If motor is still running then it could be the Unloader malfunctioning. If you require a new one try a bypass system for the unloader. The bypass will help save the life of the unloader.