I have recently bought a house and the boiler seemed to be working fine when initially tried.

A couple of days later, the pilot light would light and clicking could be heard for approx 20 mins before the main burners would light - The clicking would then stop.

Now the pilot light comes on momentarily and goes out - No main burners firing up but still clicks.

Any suggestions of what the problem may be and how to rectify it?

Many thanks

STUDAV333, January 2010

thanks for letting us know - and that i'm a star!we like to help where we can so glad thats sorted. i only come on this site every so often
U have a great 2010
all the best
eddie 'star'
(not to be confused with freddie starr!)

btw remember other info given/manual downloads for future ref etc - set aside a time/funds to replace as its getting on a bit.

eddie, January 2010

Eddie you're a star - It was just a loose connection on the fan - It all works fine now.

Thanks for your help and have a great 2010

Cheers :)

STUDAV333, January 2010

ok, link below for manual and servicing manual - download/have a read through on the fault finding chart- i'm not fobbing u off here but this is quite an old boiler in our opinion(manual 1993)and has been discontinued - u should be looking to get replaced with a condensing boiler - u probably could qualify for the recently introduced scrappage scheme - but your outlay will still be from approx £600 - £1000 - best to ring around and get some quotes. advise em of existing boiler make/model/ output is between 9.2 to 16.1 kw(pretty small)
nonetheless - as its an older boiler - and having worked on our own old boiler previously - im gonna put my money - in the first instance - on the fan.
when u switch boiler on u should here fan running continuously - if nothing thats ur problem. from manual looks straightforward enough to remove but working on boiler should be by ur service eng - safety paramount of course - nonetheless in good ole days - remove casing to get access - remove fan - try to turn manually - if sticking/not running freely then application wd40 to spindle(if as my prev its accessible) u can get running again if not seized.put back and try sys.
worth ringing around for cost of replacement fan/or google for parts/cost of labour if u get someone in-could be other problems/costs to come - u might do what i thinks worth doing and thats to replace.
Above comments given as a gut feeling -im not a service eng - so if anyone else wishes to agree/completly disagree this should hopefully help u.
I'm on a Worcester Greenstar Junior condensing boiler - and most are happy with and I havent had any probs whatsoever in 2 1/2 years.
regards/good luck
ed

http://www.worcester-bosch.co.uk/installer/literature/discontinued-boiler-literature/discontinued-gas-boiler-literature/240-rsf-discontinued-december-1997-literature

eddie, January 2010

It's a 240 Worcester RSF Combi boiler

STUDAV333, January 2010

ok re numbers tomorrow. i'm starting to think it could be the fan - the boiler will shut down / not start when fan getting stuck / seized. lets see if ur getting fault code.also get boiler model. ive repaired/changed fans on older system previously(im not heating eng)it was pretty straightforward - a spray of wd40 applied to spindle would generally free unless fan had burnt out. will have a look at worcester combi boiler diag now to see whats req. regards

eddie, January 2010

Thanks Eddie - Will get back to you with the number tomorrow - Many thanks

Checked it again tonight - Gas appears to be getting through as the pilot light came on but faded and went out first time then wouldn't come on after that.

Rechecked overflow for signs of frost but there is none

Cheers

STUDAV333, January 2010

would be helpful of boiler model number - does it have a display showing 2 numbers or letters? if so this shows temp and/or fault code - have a look and come back - note that ive posted another question about service manual that u can download that will give reasons behind the fault code - it sounds as if no gas getting to system as your hearing the igniter clicking - this might relate to gas valve/gas guvnor - im not 100% but think i read on an earlier thread relating to worcester boiler - come back and tell us how u get on

eddie, January 2010

Boiler also retaining water pressure

STUDAV333, January 2010

Thanks for the response - I'm unsure of model number but it is a combination boiler and all pipes seem to be unfrozen

STUDAV333, January 2010

what model number?is it condensing combination boiler?/have a look over the last few pages of recently submitted questions/answers/theres a fair amount of info/ should cover 90% of probs.Reply back here how u get on after u checked sys for pressure/condensate pipe frozen?/etc

eddie, January 2010