POWER CRAFT BY Karcher bought Aldi on 31Mar 05.2100Watts 130 bar.
After a the winter I now find that although the machine works very well while it is running. but, when the trigger is released the machine, instead of remaining quiet, begins to makes a pulsing noise as though the motor is switched on and then off. As soon as the trigger is pressed again the pressure is great and the noise and pulsations stop.
Can anyone help?
Re: POWER CRAFT BY Karcher bought Aldi on 31Mar...
It is the pump head that will be split... They are prone to crack without frost damage as well. Change the pump head (takes about 1/2 hour) that will cure the fault. The internal parts in this particular Power Craft are the Karcher K3.91M
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Hello sir, that is a on going problem with power washers the pump not working, than works sporadically. the main cause is leaving the pressure hose hooked up to the machine over a long period of time,not draining hose & machine, in the winter time the hose & pump will freeze causing hose & pump to expand and burst.handle to leak busting the o rings, build up of calcium deposits from hard water clogging up pump nozzle,valves in the gun handle,clogging hose fittings and screens.one of these has to be your problem.you can find a parts brake down at KARCHER.COM.orRJ BOWERS.COM . and manuals,these are good info,sites,hope this helps.thankyou. !!