Furnace pilot light keep going off

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Feb 10th, 2018 10:03 am

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Feb 7th, 2018 11:09 am

littleStrong [OP]: Newbie; Oct 19, 2013; 28 posts; 8 upvotes; Toronto

Feb 7th, 2018 11:09 am

Furnace pilot light keep going off

Last couple of winters happened 2-3 times but this year more often and basically every day or every other day after re-lighted it.
What might be the cause of it?
The furnace was pretty old I think because we haven't change it since we live here for 20 years.

6 replies

Feb 7th, 2018 11:20 am

CNeufeld: Deal Guru; Mar 23, 2008; 13006 posts; 9992 upvotes; Edmonton

Feb 7th, 2018 11:20 am

Have you done any servicing on it? Like, cleaned the thermocouple or flame sensor? That would be my first thing to look at.

C

Feb 7th, 2018 1:22 pm

Owbist: Deal Addict; Nov 9, 2003; 1520 posts; 320 upvotes; Grimsby

Feb 7th, 2018 1:22 pm

Might be time to buy a new furnace before it quits entirely and you need to buy in panic mode.

Feb 7th, 2018 5:27 pm

Hugh Jass: Deal Guru; Mar 8, 2002; 13383 posts; 4535 upvotes; GTA

Feb 7th, 2018 5:27 pm

Replace your thermocouple. Easy and cheap DIY.

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Feb 7th, 2018 8:41 pm

Brian71: Sr. Member; Jul 20, 2012; 778 posts; 341 upvotes; Guelph

Feb 7th, 2018 8:41 pm

Probably the thermocouple, the flame should be blue in colour. If the pilot flame looks like a candle it's dirty and could be the cause of the pilot going out.

Feb 7th, 2018 9:47 pm

littleStrong [OP]: Newbie; Oct 19, 2013; 28 posts; 8 upvotes; Toronto

Feb 7th, 2018 9:47 pm

We got the thermocouple replaced, and hope it won't go out again.
Thanks!

Feb 10th, 2018 10:03 am

SomeOtherDude: Deal Fanatic; Nov 23, 2008; 6832 posts; 3096 upvotes

Feb 10th, 2018 10:03 am

Owbist wrote: ↑ Might be time to buy a new furnace before it quits entirely and you need to buy in panic mode.

Terrible advice!
Investigate repairability first.

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