boiler repair help

13
Found 7th Feb 2011
Help please
Our boiler is playing up its a combi boiler (glow worm) it works fine with central heating except one radiator does not work at all. However when it comes to running a bath/shower it goes from hotish then just warm then hotish then will cut out completly then same again also very hard to get hot water for sink etc. The boiler was in when we moved in 5 years ago with no service (i know not good) should i get a local plumber to come out or get British gas or npower to come out on there fixed price repair has anybody used them?

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13 Comments

Original Poster

whatsThePoint

it sounds normal for a combi



No this cuts out and has to be manually turned back on at least 3 times in a shower. But inbetween the times it turns off you can here the boiler lighting/cutting in every min or so

Original Poster

whatsThePoint

i'd get a fixed price repair if you can, combi's only have a life of 5-6 … i'd get a fixed price repair if you can, combi's only have a life of 5-6 years and parts are expensive, so if it hasn't been serviced you could be looking at a large bill



Thanks was thinking that as rang a local plumber and he after asking me questions on the phone for 15 min seamed to think it would need a new boiler around £1,600 were as british gas take the fixed price and refund if they cant repair it.

Original Poster

However maybe thinking about it npower said £180 fixed price but i asume this will not cover the radiator repair does anybody know would the npower guy just quote for this on top of the £180 or wont they do it at all? in which case i would need a local plumber anyway.
Edited by: "chris3349" 8th Feb 2011

Original Poster

whatsThePoint

have you tried bleeding the rad?



Yes its fine must be something else

I got a fixed price repair from glow worm in November. Think it's 115 including parts and labour.

Could be that the whole system is out of balance which could explain one rad not working

I'm no expert but I like to have a careful dabble.

Could be the over temperature thermostat on the hot water to the taps. It may be cutting in too soon.

Have you made sure both valves are open on the rad. Is one of them a trv (thermostatic type), if so see if the pin that is pushed up and down by the temp sensor is not stuck down. You will need to undo the plastic head of the trv and you'll see the pin.

Original Poster

John Howells

I'm no expert but I like to have a careful dabble.Could be the over … I'm no expert but I like to have a careful dabble.Could be the over temperature thermostat on the hot water to the taps. It may be cutting in too soon.Have you made sure both valves are open on the rad. Is one of them a trv (thermostatic type), if so see if the pin that is pushed up and down by the temp sensor is not stuck down. You will need to undo the plastic head of the trv and you'll see the pin.



Will have a look thanks

Original Poster

eniness

I got a fixed price repair from glow worm in November. Think it's 115 … I got a fixed price repair from glow worm in November. Think it's 115 including parts and labour.



Good idea did not know they offered this will ring them

Our combi started playing up at xmas and after several part changes it was found that the problem was a blocked condensate trap (Plastic trap like under a sink). This was cleaned out and been fine ever since. Your problem could be something to do with the diverter valve which moves from the CH circuit to the DHW circuit when you turn a tap on. Your cold rad could be caused by an airlock. Have you checked the pressure valve on or under the boiler? If the pressure has dropped you may need to top it up and then bleed any air in the system. (Should check the presure gauge regularly and keep system topped up to around 1bar)

Radiator issue might just be a jammed valve.

Original Poster

CyDoNiA

Radiator issue might just be a jammed valve.



will check

Original Poster

has anybody used british gas or npower for fixed price repair?
Edited by: "chris3349" 8th Feb 2011
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