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Baxi 105e fan/flue fault

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duvet77

from United Kingdom

Joined: 31 Oct 2005
Posts: 95
Location: Sheffield,
United Kingdom

PostPosted: Mon Dec 26, 2011 10:39 am Reply with quote

Hi guys (if anyone is reading this over xmas).

I had the nice present of my boiler breaking on christmas eve! Oh joy.

I'm getting no hot water or central heating and the fan/flue fault (50C) light is flashing. I know there are similar threads on here and I've read through a few of them and read the service manual, and the fault finding procedure is:

1. check electrical and pressure tube connections
2. check for blockages in pressure tubes
3. check for restriction in flue
4. check venturi

and if those are ok replace air pressure switch, but I've read a lot of posts saying it could be a PCB problem.

The fan does a couple of rotations when I first turn the hotwater on and then stops, if that is a clue to what's wrong.

My first question is what, if any of that can I do myself as a DIYer (I've previoulsly replaced a hotwater diaphragm and hotwater sensor if that's any indication of my skill level). I'm not interested in doing anything that might put my family at risk for the sake of saving a few bob, but if I can avoid paying 200 to get someone out then that would be good.

I'm assuming I can't touch the flue or the venturi because they involve going inside the combustion box.

Thanks in advance.
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Agile

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Joined: 26 Jun 2004
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PostPosted: Mon Dec 26, 2011 11:25 am Reply with quote

Thats correct, a DIYer should not open the combustion chamber.

However, there is a PCB fault which causes the fan to start for less than a second and then stop. I have seen that problem a few times.

I am not saying that the PCB is the problem in your case only that I have seen that fault caused by the PCB !

Cost to repair is going to be about 200.

I dont remember the exact PCB used on your model but some variants have gas settings on them and those should not be fitted by a DIYer.

Many professionals dont seem to check those gas settings though when replacing the PCB.

Tony
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duvet77 (29 Dec 2011)
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duvet77

from United Kingdom

Joined: 31 Oct 2005
Posts: 95
Location: Sheffield,
United Kingdom

PostPosted: Mon Dec 26, 2011 1:00 pm Reply with quote

Thanks, I kind of expected as much. I think I'll call British Gas and get one of those fixed price quotes.

Merry Christmas! icon_sad.gif
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ChrisR

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PostPosted: Mon Dec 26, 2011 5:26 pm Reply with quote

Call BG if you must, but call your local friendly boiler mender person as well - he'll almonst certainly cost you less.
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duvet77

from United Kingdom

Joined: 31 Oct 2005
Posts: 95
Location: Sheffield,
United Kingdom

PostPosted: Mon Dec 26, 2011 10:13 pm Reply with quote

ChrisR wrote:
Call BG if you must, but call your local friendly boiler mender person as well - he'll almonst certainly cost you less.


Yeah, that's probably likely. The reason I considered BG is because they offer a fixed quote where they won't charge you more than that quote even if it takes longer to fix or needs more parts than they thought.

I guess I could call a local guy too and see what he says.
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twgas

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PostPosted: Mon Dec 26, 2011 10:16 pm Reply with quote

take a close look at the BG "fixed" price, it's now a 3 tier pricing system.
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gazthepottertonengineer

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PostPosted: Mon Dec 26, 2011 10:42 pm Reply with quote

Why not call Heateam the service division of Baxi! They offer a fixed price repair with no hidden extras and it comes with a years warranty if anything else goes wrong! icon_lol.gif
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duvet77 (29 Dec 2011)
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duvet77

from United Kingdom

Joined: 31 Oct 2005
Posts: 95
Location: Sheffield,
United Kingdom

PostPosted: Mon Dec 26, 2011 11:14 pm Reply with quote

Cheers guys. I'll look into it further.

I could do without the hassle on my xmas break!

EDIT: looks like the tiers are 69, 189, 349 for BG
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duvet77

from United Kingdom

Joined: 31 Oct 2005
Posts: 95
Location: Sheffield,
United Kingdom

PostPosted: Tue Dec 27, 2011 12:24 am Reply with quote

gazthepottertonengineer wrote:
Why not call Heateam the service division of Baxi! They offer a fixed price repair with no hidden extras and it comes with a years warranty if anything else goes wrong! icon_lol.gif


Is this one fixed price or a tier system like BG?
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gazthepottertonengineer

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PostPosted: Tue Dec 27, 2011 10:40 am Reply with quote

1 fixed price depending on where you live and boiler! But at least you know you will get a baxi engineer who carries 90 percent of the parts for that boiler so won't need to keep coming back like BG! icon_lol.gif
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duvet77

from United Kingdom

Joined: 31 Oct 2005
Posts: 95
Location: Sheffield,
United Kingdom

PostPosted: Tue Dec 27, 2011 3:35 pm Reply with quote

Do you work for them by any chance? icon_wink.gif
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gazthepottertonengineer

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PostPosted: Tue Dec 27, 2011 9:34 pm Reply with quote

Only for 10 years! icon_wink.gif
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Agile

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PostPosted: Tue Dec 27, 2011 10:36 pm Reply with quote

Odd that he does not say what their fixed price is for this model in Sheffield ???
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gazthepottertonengineer

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PostPosted: Tue Dec 27, 2011 10:40 pm Reply with quote

Probably as I haven't got the foggiest! icon_razz.gif
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Agile

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PostPosted: Tue Dec 27, 2011 11:05 pm Reply with quote

Dont you have the price list on your laptop?

How are you meant to tell the customers?
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