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Furnace pilot light keep going off

  • Last Updated:
  • Feb 10th, 2018 10:03 am
[OP]
Newbie
Oct 19, 2013
26 posts
7 upvotes
Toronto

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
Deal Guru
User avatar
Mar 23, 2008
13004 posts
9937 upvotes
Edmonton
Have you done any servicing on it? Like, cleaned the thermocouple or flame sensor? That would be my first thing to look at.

C
Deal Addict
User avatar
Nov 9, 2003
1471 posts
282 upvotes
Grimsby
Might be time to buy a new furnace before it quits entirely and you need to buy in panic mode.
Deal Guru
User avatar
Mar 8, 2002
12911 posts
4029 upvotes
GTA
Replace your thermocouple. Easy and cheap DIY.
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( ͡° ͜ʖ ͡°)
Sr. Member
Jul 20, 2012
737 posts
304 upvotes
Toronto
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.
[OP]
Newbie
Oct 19, 2013
26 posts
7 upvotes
Toronto
We got the thermocouple replaced, and hope it won't go out again.
Thanks!
Deal Fanatic
Nov 23, 2008
6048 posts
2199 upvotes
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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