HI, I have a KARCHER K6.50 which has served me well but today each time i pull the trigger it makes full pressure very quickly and then cuts pressure and starts building quickly again to full the cuts out and keeps going in this cycle.
If i turn the vario lance down and buil it up slowly it asometimes will work as normal.
Im guessing there must be some sort of pressure release valve or something, any one had an issue like this and managed to fix?