What to do if you have hot water but no heating

In this self help video we show you what to check if you have hot water but no heating.

[WeMuckAround]

I don’t have a thermostat, just a timer on the boiler. The radiator light won’t turn on when I turn the override on.

[debbieharber]

My baxi boiler is showing the flame for central plus I can hear the pump working .i have hot water ..but the radiators are not getting hot …what is the problem does not show any error code

[gerigame]

One of yours device engineers came to ours and did stuff and now the radiators don't get hot like they used to. It's not even as hot as a hot water bottle or a Luke warm tea! I only see the boiler go up to 34. Only if I put to 23 will it go to 40. But previous at 22 the radiators were burning hot. But now even at max on the boiler it still doesn't get that hot or like a warm pan. U have to really think maybe it's hot. In some rooms it's near off. My thermostats control that's separate makes it fire up if I increase the temp to 28! But it's really rediculous. Wish I never had this service guy come. Now I have a huge gas 5to expect

[jojo]

Potterton boiker, when heating is on and all is hot, but when I turn on hot water at the same time the heating goes off can u advise.

[leonardwright]

my boiler the hot water is ok. When thereis a heating demand the boiler comes on and lights by the radiator symbol. The ignition light comes on. But then the temperature gets to 76 ignition goes off and radiators don't heat up. aany suggestions