[stevegunn]

Help started blazer up as normal turned pressure down to clean suite then turned it back up to clean carpet but no pressure any ideas It did the same yesterday but the pressure came back after a few minutes.

[CARPET KNIGHTS]

Hi Steve

Check the drive belts(may be slipping), water pump oil level(may be siezed) or pressure valve may be sticking(strip down and repair or replace).

Cheers Goron

[Mike Halliday]

steve what was the pressure gauge reading? is it still doing it?

I would follow the water path, can you disconect the pipe that comes from the pump to the pressure regulator? I would disconect this turn, on the machine and watch the water flow, this will tell you if the problom is the pump or leading into the pump.

can you disconnect the bypass pipe and watch what happens when the machine is running and you alter the pressure regulator, when you turn up the pressure the flow from the bypass hose should slow down until it stops this will tell you if its the pressure regulater that's at fault.

unscrew the pressure reguloter and clean the spring ( put a couple of extra washers against the spring to help the spring push).

Mike

[stevegunn]

It's ok now.The gauge was reading zero. I did disconnect the pipe from the pump to the regulator and the flow was ok.The pressure regulator spring is badly rusted don't know if this has anything to do with it.