Twice now we have lost hot water from our combi boiler. The boiler is firing and the hot water outlet pipe is getting hot, but the tap water is just tepid.
British Gas visited, but the engineer was stumped and thought it might be a mixer tap gone faulty. I isolated all cold supplies to the taps and the problem persisted.
A few hours, after the BG engineer had gone, the fault disappeared!
Today, around 2 weeks later, the fault is back again!
I know many posts on here say the diverter valve is the cause, but the BG engineer said the pipe was getting hot and he didn't think that was the problem.
Anyone had similar problems?
British Gas visited, but the engineer was stumped and thought it might be a mixer tap gone faulty. I isolated all cold supplies to the taps and the problem persisted.
A few hours, after the BG engineer had gone, the fault disappeared!
Today, around 2 weeks later, the fault is back again!
I know many posts on here say the diverter valve is the cause, but the BG engineer said the pipe was getting hot and he didn't think that was the problem.
Anyone had similar problems?