Water only hot when heating is on

justjohn

it may be a simple task to replace yourself....it may also be easy too test.

theres a manual leaver on most.(using will let you check the actual valve)
Many diverter valve motors are removed by pressing a catch.
many are connected with block connectors.

motorized units are often not all that expensive. Sometimes you can also buy just the motor.(without casing)

sjoh0961

Thanks everyone, very helpful stuff. I'd add that the fault is intermittent; I wonder whether the diverter could be starting to get stuck, so this maybe a helpful warning..?

Tim

diywhynot

justjohn wrote: »

it may be a simple task to replace yourself....it may also be easy too test.

theres a manual leaver on most.(using will let you check the actual valve)
Many diverter valve motors are removed by pressing a catch.
many are connected with block connectors.

motorized units are often not all that expensive. Sometimes you can also buy just the motor.(without casing)

The OP has a combi. See advice in Post 10.

justjohn

diywhynot wrote: »

The OP has a combi. See advice in Post 10.

yes i know. i have a combi there is a diverter valve in it, as i have described.?
So i am a bit lost lol

Unless you are saying he should get a gas safe heating engineer too look at it?

keystone

justjohn wrote: »

yes i know. i have a combi there is a diverter valve in it, as i have described.? So i am a bit lost lol

Oh! I have to say that you seemed to be describing something like one of these:



Which you will find adjacent to a cylinder on an open vented system and which doesn't look anything like one of these:



which is an internal diverter for a Baxi (just as an example) boiler. Or have I misunderstood?

Unless you are saying he should get a gas safe heating engineer too look at it?

Well yes OP would if the casing on their particualr boiler forms part of the gas train (as some do).

Cheers

[Deleted User]

keystone wrote: »

You're not law abiding and honest then?? :rotfl::rotfl::rotfl:

Don't you think that they might just have thought of this wheeze and as a matter of course give the system the once over before taking it on contract?

Cheers

As someone who's taken on a British gas contract... no, they don't come and check it all over first

justjohn

keystone wrote: »

Oh! I have to say that you seemed to be describing something like one of these:





?

Well yes OP would if the casing on their particualr boiler forms part of the gas train (as some do).

Cheers

i have a heatslave 18/25 combi, it has the doofer above lol

diywhynot

The OP has a gas combi and you have an oil combi.OP : what model is your boiler?

sjoh0961

It's an Ideal Mini C28.

Thanks again for the help guys.