Heating/Boiler Issues???

[reddi171]

ok guys ive had a couple of posts but got messy. Details -

hot water seems to be ok but my heating isnt working. upstairs radiators are "warm" , downstairs cold. its an old boiler 15-20 years. (no info on make/model)

what ive done -

-ive checked the expansion tank in loft and filled it to just below the overflow pipe(some people tell me this ok other said should only be half full
-bleed all radiators
-checked that valve connected to expantion tank is at full on.

other info -

- on same pipe as expansion tank valve is a tap head, unsure if i should so anything with this???
-boiler is sounding like its doing something but the pilot light comes on for about 10 secs, during this boiler getts louder and you hear gushing water in pipes, then goes off for about 1-2min, then this cycle continues to happen and im not sure if this is relevent.
- ive been advised to check pump but idea where this is or what to do with it.

Soo all ideas and suggestions welcome as its freezing in here )

 

[reddi171]

anybody?

 

[chuckalicious]

Other than getting someone out to look at it, it could well be a blockage somewhere, if some warm water is making it to some of the rads and not others. If it's an old system sludge may well have built up enough to block some of the pipes, especially is it's a micro bore system (little pipes).

Note I'm not a plumber, I'm a programmer, but have picked up the above from reading through other posts when researching my own boiler

If you're not sure I'd get someone out.