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B & D PW1500 does not start its motor

I acquired the above power-jet cleaner about 2 years ago. It has only been used 4 or 5 times. The motor does not engage when the switch is pressed. (with power on and water on). Initially there was a long delay before the motor came on then the motor stayed on after the trigger was released..

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  • boertjie Mar 25, 2009

    Thank you Mr Fixit. I apologise if I did not express my thanks for the trouble you went to. As I live in South Africa, your help-line was not appropriate. I have however managed to sort the problem out with B and D in Cape Town.


5 Suggested Answers

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SOURCE: My 3.99 Karcher pressure cleaner

Hi! robcarroll
Did you purge the air from the pump before starting the motor.

Posted on Aug 28, 2008

  • 102 Answers

SOURCE: the motor is pulsing on and off without the trigger being pressed

It is probably sucking air on one of the connections or around one of the fittings at the regulator. You can also turn the pressure up allittle on the regulator, that might stop it also. Make sure the clamps on the hoses going to the regulator is tite. Also it could be that the regulator is just bypassing water and if it has air in it it will pulsate.

Posted on Mar 15, 2009

  • 174 Answers

SOURCE: Pressure washer sputters and stalls when trigger is engaged

Hi k2times01
It is a always a good idea to clean out the gas tank and use new fuel, however, this sounds like an RPM problem. Try adjusting the RPM up a tad and see if it runs better when you load it. If the RPM isn't the problem, you may have to clean the carburetor thoroughly.

Posted on Jul 15, 2009

  • 92 Answers

SOURCE: Karcher 3.97M Short cycles after trigger is released.

Dear csdamman,
There is a valve called the spill-valve. It is often called the control valve. This valve activates the micro-switch. When the gun is released, pressure builds up and compresses this spill valve. At the same time it puts off the micro-switch. This will then stop the machine. Now when the spill valve is faulty it cannot hold compreesion under pressure so it starts de-compressing and starts the machine again. This goes on in a cycle as you explained. So you have to change the spill valve. If the spill valve that operates the micro-switch is part of the upper head,...then the whole head must be renewed. Myself I rarely service Spill Valves. The best thing is to renew it. From your explanation it seems that you did not take notice of this Spill-Valve. Infact when you mentioned Pressure Switch, I do not know if you are refering to the spill valve. If you are....then saying that the Pressure Switch moves and operates freely, does not mean that it is OK.
In certain machines in the outlet...there is a small valve, coloured black and red or green and yellow. This sometimes when faulty, it gives the fault you mentioned. Sometimes an inlet valve gives the fault you mentioned. But from my expirience it is most of the time that the Spill-Valve is the fault.

Posted on Jul 22, 2009

  • 174 Answers

SOURCE: Lack of pressure after releasing the trigger on the wand

Hello awcockerill:
This sounds like the bypass (unloader) valve is sticking. Here is a diagram of your machine's pump. On page 2.4 see part #1. The top of this assembly is a black plastic cover. Remove all of assembly # 1 carefully. Under that is part #8. This is the bypass valve. You need to pull this out, check that the o-rings are not bent, worn or damaged, then lube it good with a VERY VERY good waterproof grease. Re-assemble it and all should be well. The part numbers are on the diagram but where to get them depends on were you live. Karcher web site may give you a number to call. Good luck.

Posted on Aug 25, 2009

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Hi and welcome to FixYa I am Kelly.
Things that cause this symptom are:
1. Debris in the carb float bowl
- Remove the carb float bow nut and clean out the bowl, the bowl but and up inside the treaded area of the bowl nut is the main fuel jet. Make sure to clean that also. You can try carb cleaner but sometimes the jet has to be removed to clear it.
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Performing the above steps should improve your engine performance dramatically. If you still have the problem after performing the above steps respond with your ENGINE MODEL NUMBER and there is more that can be done.

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