Hot water / heating problems

[jut]

Heating is off room thermostat is on 0 but when hot water is on the radiators heat up.

I need to change the check valve.

Where is the best place to look for this valve?

 

[AWheating]

what type of heating system do you have?

 

[diamondgas]

Heating is off room thermostat is on 0 but when hot water is on the radiators heat up.

I need to change the check valve.

Where is the best place to look for this valve?

Wickes, screwfix, maybe B&Q :rofl:



As above ... make and model of boiler, system design would help us help you 🙂

 

[jut]

I have a back boiler behind gas fire. If that helps. how can i tell if it is direct or indirect?

 

[jut]

baxi bermuda

 

[diamondgas]

I have a back boiler behind gas fire. If that helps. how can i tell if it is direct or indirect?

Jut you're showing less and less like you know what you're talking about my friend ... where did you get your original info from regards "check valve"? Maybe you could start with the problem you have and maybe you'll find some decent guidance here ...IMHO

 

[jut]

I live in a 3 storey town house
storage cistern in loft, hot water cylinder in airing cupboard on 2nd floor, back boiler on 1st floor.

 

[hammers4spanner]

why you think you need a check valve???

 

[jut]

Problem solving central heating 1 | Central Heating | Diy Fix It

 

[jut]

[h=2]Warm radiators upstairs when the heating is off, and hot water is on[/h]If this happens, it is probably because the check valve on a gravity fed system has failed. In a gravity fed system, the hot water cylinder is heated by water from the boiler which flows due to the gravity and not a pump. To prevent the water also heating the radiators when the heating is off, a check valve is fitted. If this has failed, the radiators upstairs will begin to receive some of the heat.

 

[diamondgas]

Problem solving central heating 1 | Central Heating | Diy Fix It

Warm radiators upstairs when the heating is off yeh? Alas not all heating systems with gravity fed hot water were fitted with the luxury of a check valve... 🙂 However lets not rule out other possibilities .... Do you have any bits and bobs electrical attached to pipes in your airing cupboard?

 

[ecowarm]

It could be a number of different things, explain all the problems and a couple of pictures of the cylinder and pipe work and we can help

 

[hammers4spanner]

Sooooo where would you think you would get said valve??

 

[AWheating]

are we talking about a motorised valve??

 

[diamondgas]

Trying to suss out whether you have gravity or fully pumped circuits jut 🙂

 

[AWheating]

take a picture of your air cubby showing valves, pump etc....

 

[jut]

yes a pump and other bit and bobs

 

[ecowarm]

It will not be a check valve thats needed, picture needed

 

[AWheating]

change the bits and bobs 🙂

 

[hammers4spanner]

3 way valve after pump?

 

[diamondgas]

yes a pump and other bit and bobs

As said jut a picture will help but it does sound like you have a valve or two as well as a pump in the cupboard .. most likely it is the there where your fault lies 🙂

 

[Billy Bob Bob]

as said a picture of your airing cupboard set up will help us determine what system you have and advise you from there

 

[jut]

 

[ecowarm]

3 Port mate

 

[diamondgas]

Hi jut ... There's a good chance from what you've described so far that the 'silver box', Diverter valve, in picture 1&6 is passing or jamed/stuck ... When just on hot water try pushing the lever underneath it and see if it moves but with some resistance and springs back when released?

 

[diamondgas]

3 Port mate

We're getting there eco... 🙂

 

[diamondgas]

jut has left the forum .. sheeeeeeeeeeeeeesh! That's gratitude! :lol: Night all :sleep1:

 

[ecowarm]

Night Diamond

 

[HelenSmith36]

Hi as AWheating as mentioned above , you need to know what type of system you have

 

[hammers4spanner]

3 port i reckon

 

[ecowarm]

Y plan- 3 port - not gravity - no check valve - Problem rads upstairs heating up when heating off - could be 3 port passing or wiring fault or incorrectly piped - has the problem just started? has it always done this?

 

[jut]

Hi jut ... There's a good chance from what you've described so far that the 'silver box', Diverter valve, in picture 1&6 is passing or jamed/stuck ... When just on hot water try pushing the lever underneath it and see if it moves but with some resistance and springs back when released?

The lever moves freely and does not spring back.

 

[jtsplumbing]

It could be that the return from the cylinder is in the wrong place, needs to be last connection back to boiler, how do you know that a check valve is fitted, have you had this fault in the past ??

 

[jut]

It could be that the return from the cylinder is in the wrong place, needs to be last connection back to boiler, how do you know that a check valve is fitted, have you had this fault in the past ??

This is the 1st time i have had this fault, I have lived in this house for 15 years and the system was here when i moved in so i would say it is about 17 years old. It was just a guess on the check valve from what i found on google. but on inspection i could not see a check valve.

 

[jtsplumbing]

If you have got one it could be anywere, under the floor, could have hell of a job finding it !!