Owner manual

Possible cause no. 2: The non-return valve is soiled or defective.

Proceeding:

Switch off the HP cleaner and pull plug

from socket. Stop water supply. Unscrew

pump outlet.

Take out check ball and check for soiling

or damage.

Also check stainless steel seat of ball

inside the pump housing for soiling or

damage.

If sealing rings are defective replace

O-rings at once.

The pressure gauge shows full pressure although the trigger

gun with safety catch has been closed. The motor constantly swit-

ches on and off.

There is no guarantee if the pump is damaged by

defective O-rings due to air induction or lack of water

(cavitation).