Having problems with your Karcher Pressure Washers ?

Karcher pressure washer keeps pulsing when not in use and has lost pressure when in use

Answers :

This can happen if the head of the pressure pump has split. You may need a new head, and to stop this happening again, tie the rigger open with a zippy tie. The water will run all time now and automatically bleed any air form the system. When you want pressure, turn it on at the main switch. This will prevent hydraulic hammer, (when you pull the rigge)r, which is what causes the head to split.
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Karcher pressure washer keeps pulsing when not in use and has lost pressure when in use

This can happen if the head of the pressure pump has split. You may need a new head, and to stop this happening again, tie the rigger open with a zippy tie. The water will run all time now and automatically bleed any air form the system. When you wan ... Karcher Pressure Washers

Karcher K3.91, lost some pressure and pulsing when trigger is release. stripped it down and checked all six valves and there all sealing as they should. i took apart the unloader valve cleaned and inspected and thats fine. there is NO water leeks anywhere or oil. preasure washer is 2 years old and gets used once a week for ten minutes. i really dont understand why its playing up

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When i turn my pressure washer on it works for a few mins then smoke comes out of it and it cuts off. i bought it last year and only used it once and this happened when i have tried to use it this year. its a karcher pressure washer thanx

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I have a G2500VH pressure washer that has started to pulse when the trigger is squeezed. This happens if I use the 0,25, and 40 degree nozzles BUT if I use the one for low pressure(detergent use) it will hold pressure fine. I have changed the unloader valve, checked all the valves and seals ad they seem to be fine. What could be the problem?

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I have a Karcher K3.48M electric pressure washer which used to shut off when you weren't using the cleaning wand. This no longer happens and there is alot of water running out of the bottom of the unit. (This didn't used ot be the case) I expect a leak somewhere inside the unit, but I'm wondering even more if there is a pressure switch which has failed that cased the leak. In other words, if I find and repair the leak and there is a failed pressure switch, it will likely only break again. I can'

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My Karcher K3.48M pressure washer remains in the low pressure mode even when I return the pressure nozzle to the high pressure position. How can this be corrected. The pump seems to build up the pressure because when I release the handle the pump motor stops. This is a fairly new pump which was purchased in the latter part of last year(2010). Could this have been caused by the detergent I have been using which is an automotive shampoo? Please help I love this washer and for the times that I u

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Hi, I have a Karcher K3 pressure washer. 18 months old, used maybe 6 hours total. For the past 3 hours of use the compressor/pump seems to cycle audibly but pressure at outlet hose seems constant, hence I did'nt worry. Now it does not start with switch on. I now hear a buzzing sound from the unit. The unit was last used 6 weeks ago. The unit was stored in the garage away from frost, it does not leak water so I don't think there is any frost damage, but just this buzz. Any suggestions would

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Hy; I have a karcher 580 I had to replace gun complete so I bough a simoniz xe01-001 at simoniz.osirus.ca/ for your info 69$ complete ***.I install NOW I get pulse up & down ONLY when trigger is press I turn valve down i only get 10% of pressure if i turn valve up that is when it start pulsing pressure up & down it wont keep pressure up ... Bob...

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Hi. I'm scratch building a pressure washer using a Comet BXD2831G pump. If I don't plan on using any type of detergent, is it OK (or manditory) to plug the detergent intake to keep it from sucking air? I would use a short piece of hose over the intake with a screw in the opposite end. Also, is it possible to set the pressure by ear? If so, what should I listen for? Thanks for your help!

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How to use a Pressure Washer - Karcher Pressure Washers

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RE: Karcher Ser.#122783 Pressure Washer K3 97M My Karcher is several years old. During recent efforts to use it, the unit "chugs" when I squeeze the handle rather than making the familiar steady pumping sound. The pressure is also down significantly. I will appreciate your input on how I might address this problem. T A Rounds

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