combi boiler

[jackyp]

why does my heating work on my combi but not the hot water it seems to fire up then shortly dies down

[McSteve]

I think this is the same thing that happened to my boiler as it had the same symptoms. It turned out to be a flow valve that was worn out and so would only fire if the flow was high e.g. when the heating is on. Luckily we have a maintenance contract so it was fixed by an engineer.

[brian waring]

i had the same problem a few months back and it turned out to be a holed or weak diaphram.i am a handyman not a plumber and easily fixed the problem. cost �16.00

[gucciman]

your diverter valve has gone, 50 to 120 quid for a new one dependant on the make of boiler. either that or the flow switch, 40 quid for one of those

[BillyNoMates]

Agree with gucciman - exactly the same sympton as my Protherm boiler a week ago.

All the flow sensors and thermostats checked out OK. Turned out to be the diverter valve - �55 for a new one.

[jackyp]

thank you for your answers gas man coming out friday

[Tim B]

You'll be lucky.....

[jackyp]

will let you know if he turns up and what the problem is

[gucciman]

my father is a british gas trained heating engineer with 40 yrs experience and is know self employed, he gave the answer above with the prices so make sure you don't get ripped off, a lot of people out there are glorified plumbers who will charge whatever they can get away with.