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pilot light on baxi brazilia wall heater wont stay on

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denis

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Jan 20, 2019, 10:14:04 AM1/20/19
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pilot light not staying on baxi brazilia f8 wall heater


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tabb...@gmail.com

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Jan 20, 2019, 12:22:59 PM1/20/19
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On Sunday, 20 January 2019 15:14:04 UTC, denis wrote:
> pilot light not staying on baxi brazilia f8 wall heater

Pilot light heats thermocouple which provides a little current to hold the gas valve open. So a dead TC or the flame missing its aim can cause that.


NT

Andy Burns

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Jan 20, 2019, 12:50:07 PM1/20/19
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Tim+ wrote:

> tabb...@gmail.com wrote:
>
>> denis wrote:
>>
>>> pilot light not staying on baxi brazilia f8 wall heater
>>
>> Pilot light heats thermocouple which provides a little current to
>> hold the gas valve open. So a dead TC or the flame missing its aim
>> can cause that.
>
> But do any Brazilias have one?

I see spare thermocouples listed for 'F8S' rather than 'F8' models


tabb...@gmail.com

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Jan 20, 2019, 3:51:26 PM1/20/19
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> Tim+ wrote:
> > tabbypurr wrote:
> >> denis wrote:
> >>
> >>> pilot light not staying on baxi brazilia f8 wall heater
> >>
> >> Pilot light heats thermocouple which provides a little current to
> >> hold the gas valve open. So a dead TC or the flame missing its aim
> >> can cause that.
> >
> > But do any Brazilias have one?

yes

harry

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Jan 21, 2019, 3:35:36 AM1/21/19
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If it has a pilot light,it has a thermocouple.


>
> yes

Brian Gaff

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Jan 21, 2019, 4:22:30 AM1/21/19
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ah, but look where it was posted from. I'm not really surprised.
Brian

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"Tim+" <timd...@gmail.com> wrote in message
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> denis <caedfaa9ed1216d60ef...@example.com> Wrote
> in message:
>> pilot light not staying on baxi brazilia f8 wall heater
>>
>
> Mine doesn't have a pilot light. I don't think any of them do.
>
> Tim
>
>
> --
> Please don't feed the trolls


Jim K..

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Jan 24, 2019, 1:04:43 PM1/24/19
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Tim+ <timd...@gmail.com> Wrote in message:
> harry <harry...@btinternet.com> Wrote in message:
> True, but mine has neither, hence my question.
>
> Tim

So if the burner got "blown out" somehow, what cuts the gas off?
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Scott Morton

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May 6, 2021, 9:15:06 AM5/6/21
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Hi Denis, I have a baxi Brazilia(manual). The pilot light comes on when using the trigger, but when releasing trigger the pilot light goes off. I've lived in property for 14years & have never had this problem before. Hope you can help.

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alan_m

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May 7, 2021, 3:20:11 AM5/7/21
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On 06/05/2021 14:15, Scott Morton wrote:
> Hi Denis, I have a baxi Brazilia(manual). The pilot light comes on when
> using the trigger, but when releasing trigger the pilot light goes off.
> I've lived in property for 14years & have never had this problem before.
> Hope you can help.
>


Possibly a thermocouple failure and/or you are not holding the pilot
light trigger on long enough for the thermocouple to be heated up by the
pilot light. Manually hold the pilot light on for 60 seconds before
releasing.

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Tim+

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May 7, 2021, 6:56:31 AM5/7/21
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alan_m <ju...@admac.myzen.co.uk> wrote:
> On 06/05/2021 14:15, Scott Morton wrote:
>> Hi Denis, I have a baxi Brazilia(manual). The pilot light comes on when
>> using the trigger, but when releasing trigger the pilot light goes off.
>> I've lived in property for 14years & have never had this problem before.
>> Hope you can help.
>>
>
>
> Possibly a thermocouple failure and/or you are not holding the pilot
> light trigger on long enough for the thermocouple to be heated up by the
> pilot light. Manually hold the pilot light on for 60 seconds before
> releasing.
>

I think after 14 years he very probably knows the correct sequence for
lighting. ;-). Almost certainly the thermocouple.

alan_m

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May 7, 2021, 7:17:49 AM5/7/21
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On 07/05/2021 11:56, Tim+ wrote:

>
> I think after 14 years he very probably knows the correct sequence for
> lighting. ;-). Almost certainly the thermocouple.
>

Not necessarily if it's a permanent pilot light that may have been on
for years and now has just extinguished.

Tim+

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May 7, 2021, 8:03:08 AM5/7/21
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alan_m <ju...@admac.myzen.co.uk> wrote:
> On 07/05/2021 11:56, Tim+ wrote:
>
>>
>> I think after 14 years he very probably knows the correct sequence for
>> lighting. ;-). Almost certainly the thermocouple.
>>
>
> Not necessarily if it's a permanent pilot light that may have been on
> for years and now has just extinguished.
>
>

It doesn’t have a pilot light.

https://www.manualslib.com/manual/755225/Baxi-Brazilia-F5.html?page=18#manual

Scott Morton

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May 7, 2021, 11:01:24 AM5/7/21
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I actually held it in for a lot longer than 60 seconds & pilot light didn't stay on, so do you think it would definitely be the Thermocouple. Many thanks for your time & help, very much appreciated.

Tricky Dicky

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May 7, 2021, 11:32:33 AM5/7/21
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What they call the injector is in common parlance the pilot light the piezo electrode is simply to ignite the injector/pilot light. As the OP manages to get a spark and the pilot flame ignites but does continue to burn on release of the gas valve that points to the thermocouple not working. This might be due to incorrect positioning or a thermocouple fault. If adjusting the thermocouple does not solve the issue then it needs replacing they are not that expensive to replace with plenty suppliers of alternatives if Baxi originals are hard to come by.

Sometimes the injectors can distort the pilot flame if crud has got in them, removing one is usually straight forward, just one nut to unscrew. If you feel you need to go that far it is worth replacing it with a new one again they are not expensive. When we had a Baxi Bermuda back boiler some years back it was a matter of pennies to replace.

Richard

Tim+

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May 7, 2021, 12:01:44 PM5/7/21
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Scott Morton <9a3da6d8fc770a63...@example.com> wrote:
> I actually held it in for a lot longer than 60 seconds & pilot light
> didn't stay on, so do you think it would definitely be the Thermocouple.
> Many thanks for your time & help, very much appreciated.

90%+ chance. Given how cheap they are, it would definitely be the first
thing I’d try. They do wear out.

Brian Gaff (Sofa)

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May 9, 2021, 2:21:30 PM5/9/21
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Always amazes me how long those things do last, when you think of their
environment. I'd have thought in these days of expensive energy, anything
that relied on a pilot light might have been modified to use a spark igniter
or the system replaced with a more modern device.
Brian

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Scott Morton

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May 9, 2021, 3:32:57 PM5/9/21
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Thanks very much Tim, me dad was called Tim, it makes your answer extra special.

Kind Regards

Scott
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