Board logo

worcester boiler help please
woolly - 12/2/13 at 07:40 PM

ideas please from the best place

worcester greenstar 28i junior 6 years ish old
found out this morning as the heating did not come on,
no hot water or heating
if hot tap turned on it does try to start
found pressure low so toped it up as have done in the past.
no flashing blue light
green radio signal light on
green light to say the gas is burning on for two sec then out

????
any help appreciated

r1_pete - 12/2/13 at 07:49 PM

Had a similar problem with Mothin in Laws a few weeks ago, I switched everything off back to the isolator switch, checked the condensate drain, system pressure, then powered it back up, and it fired up.

jabs - 12/2/13 at 07:51 PM

this from the manual

Burner lights then goes out in DHW or CH mode
Does the boiler run normally with the front cover off and
then fail when the cover is put back on?
If yes there is likely to be a flue problem - either the air inlet is blocked or the
inner flue is leaking flue gases into the air inlet.

woolly - 12/2/13 at 07:55 PM

thanks

where are the screws for the main cover please or how does it come off. so i can test that bit.

austin man - 12/2/13 at 08:13 PM

Mine is an older Worcestshire boiler it lost pressure there is a reset switch underneath of mine pressed it and voilla cost me £25.00 for the plumber to show me

cliftyhanger - 12/2/13 at 08:25 PM

http://www.centralheating.co.uk/Boiler-Manuals/worcester-bosch-boiler-manuals

that should sort you out!
I asked a q about a worcester a while ago, on here, and that led to the manuals.

woolly - 12/2/13 at 09:09 PM

ah pictures big help thanks

stevepj - 12/2/13 at 10:02 PM

How mad, I've literally just come back from a friends with exactly the same problem on a 28i.
Fan and pump both running but no spark.
It was the overheat protection circuit that had tripped, the reset button is on top of the boiler at the front left hand side.
Isolated the power supply, pressed the reset button, power back on and all worked again.

woolly - 12/2/13 at 10:35 PM

many thanks for that, the only reset i can find is a button on the front panel the manual shows 2 over heat sensors in the area you mention but no reset.

have noticed that the pressure is starting to fluctuate a fare amount.

MkIndy7 - 13/2/13 at 07:29 AM

quote:
Originally posted by woolly
many thanks for that, the only reset i can find is a button on the front panel the manual shows 2 over heat sensors in the area you mention but no reset.

have noticed that the pressure is starting to fluctuate a fare amount.


Probably worth investing in having it serviced then if it hasn't been for a few years and your starting to have a few problems.
If the pressure is fluctuating a little as the pump comes on and off and a lot between cold and hot it's likely that the expansion needs re-charging.

woolly - 13/2/13 at 09:46 AM

thank for help
the main pump is not working correctly and is getting extremely hot so switching it all off again, so have switched it off at the mains and called the insurance, did not want to pay £50 excess for a fuse or press a button.

big help as always ta.

woolly

Not Anumber - 13/2/13 at 11:19 AM

It might just be worth swapping the pump out if you suspect it. Drain the system down and it shouldn't take you more than an hour with basic plumbing tools, they are not terribly expensive.
Although pumps can last for years the question isn't IF a pump will go wrong, it's WHEN.