Take the main yellow casing off....usually held together with torx screws.....All the cables go into one plastic unit which plugs into the on/off button. see if one of the cables has come loose.....if it has it should just slide back onto the connector..then try again.
mojo
July 2010
It could be that the nozzle is blocked.try unblocking it with a paper clip.
jetwashjim
June 2010
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