I have an older central heating system using two pumps, one for CH and one for hot water.As a new radiator was fitted I put an inhibitor in via the header tank.Since then the hot water has not heated. The pumps are working OK but the return pipe for hot water is barely warm. I suspect the pipes have become blocked.The radiators are working fine except for noise that sounds like marbles rattling in them when very hot,and a fair amount of bleeding occasionally. Should I attempt to flush the system from the mains. If so, how please without causing water to pour through the ceiling ? Thanks
Hot water system not working
- Thread starter ianhou
- Start date
Unfortunately there is only a bleed valve on the central heating part of the system, water comes out of the pump central screw when opened. Would it help if I turned the pump round the other way, or would this cause other complications.
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
