Have had problems with my hom central heating/DHW system since beginning of December.
The problem was traced to a leak on the flange upstream of the pump which was replaced, at which point the system seemed to have worked fine for the last 2-3 week (save a tiny weep on a joint that drips like a thimble full over a day, waiting for folk to come back in january to sort it out, thought this may be related to my current problem).
For the last 2-3 days, the DHW system barely gets luke warm; I turn on the hot water time about half an hour before the CH time to allow the hot water tank to reach temperature. Always used to get very hot water, but now its barely warm; however, if I turn on the electrical immersion heater, the water reaches temperature fine.
Are these sysmptons of an air lock, would running cold water through the hot water tap help?. Could the tiny drip be introducing air in the system?.
Is there a way to vent the hot water cylinder?. I'm almost totally ignorant of the way the UK CH/DHW system works, but can post picutres of the hot water cylinder if that can help someone guide me how to vent the air lock from it (if this is indeed possibly the problem).
Thanks for any help.
Riz
The problem was traced to a leak on the flange upstream of the pump which was replaced, at which point the system seemed to have worked fine for the last 2-3 week (save a tiny weep on a joint that drips like a thimble full over a day, waiting for folk to come back in january to sort it out, thought this may be related to my current problem).
For the last 2-3 days, the DHW system barely gets luke warm; I turn on the hot water time about half an hour before the CH time to allow the hot water tank to reach temperature. Always used to get very hot water, but now its barely warm; however, if I turn on the electrical immersion heater, the water reaches temperature fine.
Are these sysmptons of an air lock, would running cold water through the hot water tap help?. Could the tiny drip be introducing air in the system?.
Is there a way to vent the hot water cylinder?. I'm almost totally ignorant of the way the UK CH/DHW system works, but can post picutres of the hot water cylinder if that can help someone guide me how to vent the air lock from it (if this is indeed possibly the problem).
Thanks for any help.
Riz