Please help, no hot water or heating - combi boiler problems.

Triker · 21 January 2008 at 8:31PM

Hello all I wondered if any of you good people can offer some guidance.

We have a Worcester 240 combi boiler, yesterday my OH drained the radiators as we had a bit of excess pipework (from a removed radiator) taken out.

He then refilled them double checking the water level inside and that they were all ok.

When we tried to get the heating and/or water back on the main burner comes on but then after about 30 secs the main burner goes out. The pump appears to keep pumping water through the system but it's cold water. The pump then starts to get hot.

The pilot light stays on. The thermacouple is also fine so we're stuck.....can anyone help please?

Thank you from a cold Triker.:o

bockster · 21 January 2008 at 8:55PM

i know you said the pump appears to pump water, but could the pump be air locked? sometimes there are bleed valves locally or a plug on the back of the pump that can be loosened to check for water

Triker · 21 January 2008 at 9:02PM

bockster wrote: »

i know you said the pump appears to pump water, but could the pump be air locked? sometimes there are bleed valves locally or a plug on the back of the pump that can be loosened to check for water

We can't locate any bleed valves

and due to the position of the boiler we can't access the back of the pump. Think we'll have to get a plumber in. Cheers for your help though.

bockster · 21 January 2008 at 9:08PM

if it were me i'd maybe try to loosen a connection close to the pump, but this depends on how confident you are, and theres the possibility of causing more trouble! good luck with it though.

bridget81 · 21 January 2008 at 9:17PM

air lock.

is there an air screw in your loft?? its a piece of pipe in the loft with a screw on the top, unscrew this and the air comes out

hope this helps

Triker · 21 January 2008 at 9:26PM

bridget81 wrote: »

air lock.

is there an air screw in your loft?? its a piece of pipe in the loft with a screw on the top, unscrew this and the air comes out

hope this helps

Cheers unfortunately it's a sealed system, apologies I should have made this clear in the original post. Thanks for trying to help though.:T

ariba10 · 21 January 2008 at 9:51PM

I have a combi and that is a sealed system but I also have two bleed points in places where the pipework had to be higher than the boiler and radiators.

Triker · 21 January 2008 at 10:02PM

Having had a good look we cannot locate seperate bleed points. OH thinks that there is air in the pump and/or air in the boiler.

We have also tried to locate the reset button for the system but can't find one.

I think we'll just have to find a plumber, rang one (whose v. good) but he's busy all week. Bum.

chilli_dog · 21 January 2008 at 10:09PM

We have a worcester bosch and when ours went wrong we called them directly, they are open from 8.00 and you can pay them over the phone with your card.

Engineers was very good, just fixed the boiler. No 'house of horror' type tricks.

They were with us within 2 days as well

oh yeah, you can call them for tech support to.

http://www.worcester-bosch.co.uk/index.php?fuseaction=serviceArea.home&con_id=139365&from_id=134701

hewhoisnotintheknow · 21 January 2008 at 10:35PM

i have this boiler, top left at the back, there is a valve that you operate to blow the air out, that will fix it

here is the manual, look for air valve or similar

Triker · 21 January 2008 at 10:46PM

hewhoisnotintheknow wrote: »

i have this boiler, top left at the back, there is a valve that you operate to blow the air out, that will fix it

here is the manual, look for air valve or similar

Thanks for the suggestions, and thanks also to hewhoisnotintheknow on your first post. Wecome to MSE. :T

Please help, no hot water or heating - combi boiler problems.

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