Where is my central heating pump?! Need to find to replace. All aspects of plumbing questions and answers, help, tips and information

[simwilko]

Although my hot water works fine my radiators no longer get warm. the downstairs ones began cooling first, then upstairs and now they are all cold. I am led to believe that it is probably down to the pump not working and therefore not sending hot water round the system. However, my problem is that I cannot find the pump!
The sytem is a back boiler from a gas fire. I cannot find a pump in the loft and I have no airing cupboard or similar in which it could be hidden. My assumption is therefore that it must be under the floorboards. Is there a standard place or way to work out where it is before I start to rip them all up searching for it. Any help or advice would be most appreciated! Thanks

[muttley]

If your pipework is boxed in at the side of the chimney breast it could be there, if not it could be under the floorboards above the lounge/d,room

[htg engineer]

It could be under the floor boards at the side of the chimney breat upstairs or in the side of the chimney breast next to the back boiler or again upstairs.

[simwilko]

Thanks.