Having problems with your Karcher K2.26 Electric Power Washer ?

Karcher 3.98M Switches On and Off after Releasing Trigger

\015 I have the same problem as the last poster...mine starts and stops at a rate of once per second. It seems to operate OK otherwise.\015\012\015\012Thanks!\015

Answers :

Yea the pressure cleaner has a internal water leak it thinks you are trying to turn it on then kicks in and realises that you are not...
\015\012on these cheap units sometimes it is not worth fixing if you still have good pressure... other wise you could take it to a tech and get the plastic head and valve assy replaced that will most likely fix it very common problem....
\015\012
\015\012regards
\015\012Brad:)
Repair Help & Product Troubleshooting for Karcher K2.26 Electric Power Washer

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Suggested Questions/Answers :

When I switch my karcher k4.97 washer on it just sits and pulsates(on off on off etc.)When I squeeze the trigger it runs perfect,but emits a very low pressure.Then when I release the trigger it reverts back to pulsating. I have tried the popular fixes like cleaning lances,filters,making sure its not airlocked etc.I have even fitted new parts(seals to the pump etc).There are no leaks what so ever.


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Karcher 3.98M Switches On and Off after Releasing Trigger


Yea the pressure cleaner has a internal water leak it thinks you are trying to turn it on then kicks in and realises that you are not...\015\012on these cheap units sometimes it is not worth fixing if you still have good pressure... other wise ... Karcher K2.26 Electric Power Washer

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Turn water on then actuate wand trigger. Pressure washer leaks when wand trigger is actuated and has very low pressure/flow output. After releasing trigger the pressure cycles on - off at approx 1 second interval. I suspect that the plasstic oulet tube is leaking causing low pressure leak out of bottom when trigger is actuated and causes pressure switch to cycle when the trigger is released. Any Help? This pressure washer is approx 18 months old!


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Karcher k4.98 switching on and off


The machine has a pressure leak. Check for a cracked controll head or either a leaking outlet elbow. The machine will short cycle if the holding pressure can not be maintained ... Karcher K2.26 Electric Power Washer

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

My Karcher 1750 psi electric pressure washer is making in/out loud noise when switch to On and idling not pressing washer trigger.


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The engine on my Karcher K2.26 turns on when you turn the switch and continues to run rather than just when you pull the wand trigger. Lower pressure also results.Any solutions?


Yea mate ya bypass will be stuck(the little valve that turns the unit on or off) also if not that there is a little micro switch attached to the valve this may of dislodged for some reason... commonly happens if unit has sat for a period ... Karcher K2.26 Electric Power Washer
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