Having problems with your Pressure Washers ?

Karcher b302 when switched on it makes a low humming noise, not the same as when it worked. There is no pressure at all when the lance is triggered.


Answers :

See if you can spin the cooling fan of motor if so you may have a bad capacitor on motor
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Karcher b302 when switched on it makes a low humming noise, not the same as when it worked. There is no pressure at all when the lance is triggered.


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Rockworth Powertask Pressure Washer : model no AROW4P seems to rev flat out, hav to put choke in middle to use so not to fast revs. Im sure it used to rev higher and lower according to use of lance. could it be something to do with 3 valve things if so how could i tell if ok. put clean fuel in. oil level ok.another problem is when switched on water comes straight through lance,trigger makes no diffrence. please help


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Karcher K4 Hello, just cleaning my patio been using it for two days and it has stopped pressuring up, water comes through the lance but there is a humming noise coming from the unit when switched on, weather the trigger is pulled or not. Thanks for your time hope you can help. Regards Gareth


It sounds as if you might have an air lock/air bubble in your pump circuit. If you've not already done so, try holding the trigger on your high pressure nozzle for several minutes with the engine OFF. (just your water pressure forcing water through t ... Karcher 2500 PSI Pressure Washer

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Pressure washer does not work unless you hold lance trigger and swith off and on


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You gave a very close solution yourself for the problem. But other leakages can cause such symtoms.Forexample a leaking head or a leaking chemical inlet. These can be caused because the spill valve (pressure control valve) is stuck. When this valve s ... Karcher PSI Electric Pressure Washer

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Honda pressure washer cuts out when lance trigger released.


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Check for 12V at the igniter connector with the unit running. If you have 12V and no igniter it may be stuck or bad. Thrun the unit off and read continuity across the DISCONNECTED igniter plug / terminals to the igniter. No resistance = open ignit ... Pressure Washers

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