1 hour ago Kathy asked ... Samsung ER-4915?    |    Mark asked ... Oven door removal?    |    Jt asked ... Where to buy mt270x petrol cap?    |    Jo asked ... How to engage clutch on old sewing machine to engage needle?    |    Jacky asked ... Miele Vacuum cleaner?    |    Click here to ask your question

HEATING?

I have a Ravenheat combi boiler 820/20, when just on water and i run hot water tap its cold, but when on heating and water and i run the hot tap i get hot water, CAN ANYONE HELP!!!
Pamela DAY, January 2010
the microswitch or diaphragm that tell the boiler a tap has been opened have failed and need replacing

brian, January 2010
link Click here to see other fixes for Ravenheat 820/20.