I have a Potterton Profile 60E with fanned flue. The old fan works ok, the pressure switch is new. On startup the fan runs, but there is not enough pressure going up through the heat exchanger and up the venturi to operate pressure switch.
If i blow up the tube to the pressure switch the switch changes over ok.
I have cleaned all the debris from between the heat exchanger fins.
I have sealed the boiler front cover.
If i blow up the tube to the pressure switch the switch changes over ok.
I have cleaned all the debris from between the heat exchanger fins.
I have sealed the boiler front cover.