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Gas insert in fireplace won't stay lit SOLUTION!!!

Posted on 1/29/26 at 10:17 am
Posted by jeffsdad
Member since Mar 2007
24365 posts
Posted on 1/29/26 at 10:17 am
Pilot light ok. Turns on low and all burners light up and goes for ten seconds. then off.

I thought it may be thermocouple but I'm told the burners wouldn't light up if it were.

Any ideas?

NEVER MIND, ITS GOT TO BE THE THERMOCOUPLE

EDITED: repairman came and blew canned air on the pilot light apparatus. Says thats almost always the fix. Thanks to all and good job to those that said this.. Thanks!
This post was edited on 2/12/26 at 6:10 pm
Posted by BatonRougeBuckeye
Baton Rouge, LA
Member since Aug 2013
1880 posts
Posted on 1/29/26 at 12:49 pm to
That happened to me. It was the thermocouple but was just corroded and once cleaned with wire brush worked fine.
Posted by achenator
Member since Oct 2014
3286 posts
Posted on 1/29/26 at 12:50 pm to
clean it with canned air.
Posted by Spankum
Miss-sippi
Member since Jan 2007
61292 posts
Posted on 1/31/26 at 11:34 pm to
Clean the thermocouple with some non-metallic sandpaper or a wire brush.
Posted by Spankum
Miss-sippi
Member since Jan 2007
61292 posts
Posted on 2/2/26 at 3:34 pm to
quote:

clean it with canned air.



Be very careful with canned air….they often use propane or butane and you don’t want to use them around anything with a pilot.
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