Having problems with your Karcher PSI Electric Pressure Washer ?

I have a Kew Hobby 80. The output from the lance is not constant but pulsates.

Answers :

Could be the input water pressure is not sufficient. There is a pressure valve inside the machine that will cut off the motor if input pressure is too low or non existent.
\015\012Try a different source for the water input.
Pulsing is caused by an air block in the hose. Best way to clear it is to hold the trigger open for a couple of minutes and it should clear. Also pull the nozzle forward so it is only on hose pressure and keep trigger open till it clears the air bloc.
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