Many thanks for your reply
The problem started last week when one morning with both switches(heating and water) on the radiators did not heat up and only got hot water.
Then the following morning they started heating up but they heat up now even when the switch is on water only.
Any...
Many thanks for your reply
The boiler is a GLOW-WORM CAPRICORN 240/6 which rests behind the gas fire i.e. backboiler and its a gas fired system.
The problem started last week when one morning with both switches(heating and water) on the radiators did not heat up and only got hot water...