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Karcher 3.90 --motor pulses-pressure low - Karcher Pressure Washers


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Karcher 3.90 --motor pulses-pressure low - Karcher Pressure Washers


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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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Honda pressure washer model # exhp3640-1 3600psi 0=13hp has low water pressure out of triggers motor does not engage for higher pressure


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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?


Do you mean pressure on and off with the hp tips and smooth and steady with chemical tip? ... Pressure Washers

Have a karcher 1750 psi pressure washer. when you turn the on switch on the motor pulses instead of asteady motor sound. when squeezing trigger it sounds fine. can it be the unloader?


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Karcher kb4040 low pressure pulsing - Pressure Washers


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I have a karcher 3.80 md electric pressure washer that keeps running when not in use and the pressure is low. Any help please?


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Shark pressure washer with honda 5.0hp motor when in use spraying with good pressure it the pressure shuts off and motor sounds like its about to shove a rod through the cases shut it off restart it andd the same thing occurs all fluid levels good pump and motor. water pressure from hose bib good. may b low water pres. for short time due to possible kink in hose reel not sure


What type pump oil to usefor karcher 2400 psi ... Honda Pressure Washers

Karcher pressure washer 3.86 motor hums - Karcher Pressure Washers


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I have a Karcher 330 electric power washer. When connected and set to highest pressure (on variable wand) I get no motor action unless I reduce wand setting, then I get a little boost but not much. If I use high pressure conical wand I get high pressure sometimes, other times motor does not go and no pressure is delivered. I have replaced the high pressure hose.


Just wondering. have you tried it without an attachment to see what kind of pressure you get ... Karcher K2.26 Electric Power Washer

Karcher pressure washer works only with low pressure


The inlet screen orientation is of no consequence. Either way should work fine. Check two things...\015\012\015\0121) Many of the spray nozzles have a high and low setting at the tip of the wand (where the water comes out). See if your no ... Karcher G3025OH Pressure Washer

I have a Karcher K2.65 Deluxe pressure washer. All connected up, turned it on but I have low pressure out of any of the attachments and water splashing out of connection between gun and extension tube


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Karcher K2.36 Pressure Washer I've just fired up my Karcher for the first time since last year and the motor started running fine, I then switched on the tap to allow the water through and the motor cut out. Now it won't restart, any ideas? I'm wondering whether the water supply should have been on before I switched the motor on but it's too late now! Help!


The water must be switched on, and seen to be running freely from the nozzle for a few seconds before switching on the power - suggest you check the fuse in the plug, and then try the above. ... Karcher K2.26 Electric Power Washer

Karcher kb4.99 low pressure 4yrs old - Karcher Pressure Washers


... Karcher Pressure Washers

Karcher 294 no pressure motor hums - Karcher Pressure Washers


Http://www.fixya.com/support/t2162702-karcher_electric_press_wash_hums_when ... Karcher Pressure Washers

Hello there.My Karcher pressure washer motor constantly runs with no pressure coming out of trigger gun.I have tried another gun with the same result.The motor should stop/start when you press gun.The model is a 350M plus VPS. Could you please help.thanks


The valve that admits more water to be compressed is stuck. It is likely the O-Rings on it need replacing. No water to the pump, no pressure!\015\012\015\012The motor will stop when pressure is up to the designed pressure. ... Karcher Pressure Washers

Karcher k 3.96m low water pressure - Karcher K 5.85 M Electric Pressure Washer


... Karcher K 5.85 M Electric Pressure Washer

K7.85 pressure washer pulses on and of - Karcher Pressure Washers


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My electric karcher pressure washer is pulsing


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Karcher 3.91 m , motor runs but no pressure - Karcher K 391m Pressure Washer


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I have a Karcher 3.99 Pressure Washer. The motor appears to be working and water is passing through the machine when turned to the detergent application setting. However when the lance is tightened to turn on the pressure, no water is coming through. The Karcher is just over 1 year old David


Hi I have a karcher 3.99 the motor comes on and water comes out however thre is no pressure i have tested the lance on my brothers washer and this is ok what is wrong ... Karcher K 5.85 M Electric Pressure Washer

I was using the pressure washer and it stopped having high pressure and motor keeps doing a varoom--- pause----varoom----pause and does not stop doing this even with the wand off. Does anyone know what to do? it is a karcher 1750 psi electric washer


This problem, where the unit continually switches on and off when the handgun is closed, is quite common. Unfortunately it has at least six different possible causes, only two of which are easily checked. \015\012\015\012The first thing yo ... Karcher PSI Electric Pressure Washer

My Karcher 4000 SHR Pressure Washer pressure pulses when operating. I have checked with Karcher Technical Support and all their trouble shooting procedures except checking the unloading valve. Where is this valve, how do I get to it and how do I lubricate it?


It sounds like your unloading valve is crudded up with mineral deposits and stuck in a partway open state. look for a plastic cover with a silver snap on top; pry off the silver snap and lift off the plastic cover; next remove the two screws on the ... Honda Karcher G4000RH Pressure Washer

The last time I used the pressure washer was running fine. A few minutes later I tried to start it up and could barely turn it over. I removed the recoil and could turn it a little easier backwards. The motor is a Honda GC190 on a karcher pressure washer and has 20 -30 hours of running time. Thanks Clint


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