|Thanks E R J. Have done what you said and diaphram is |
working O K.
I have noticed that the hot water in the boiler resevoir does not heat up every time the temperature drops when the boiler is on stand by (Idle.)
|funny one this, first check the flow switch, with the white front cover off and the controll pannel down on the left towards the bottem there will be a brass disc abount 76mm die, you will see a pin, turn on a hot water tap, the pin will come out a make a switch , putting the boiler on, if the pin does not move the diephram behind it has gone, and needs changing|