My potterton boiler has stopped working-ive noticed there is no "click" when the hot water/heating is turned on & there is no flame. The pump seems to be working ok.
I was told to check the water pressure which was low at 0.8 bar but raising the pressure has made no difference.

George, May 2009

thanks for the advice about the thermistor button saved me was about to change pcb never new it had a reset thanks again

Ant Grimsby plumber, January 2011

hi george just wondered where that button is as i am finding it difficult to find it! HELP please!

nat, March 2010

Thanks George. Good job. Worked perfectly.

Andrew

Andrew, March 2010

Hi again,thanks for the help but ive managed to fix it.

It was the "themister" which just needed resetting. Behind the grey facia panel theres a copper pipe on the left,this themister is located here & has 2 wires either side & a tiny switch in the centre. I pushed this switch back in & the boiler is now working fine.

Perhaps this was activated due to the low pressure causing it to overheat?? Anyhow maybe this will help someone in the future...

Thanks again,

George, May 2009

could be the air pressure switch that tells the pcb the fan is running

b, May 2009

Hi,yes the fan is running.

George, May 2009

is the fan running

b, May 2009