Lennox (G43UF) Flame Sensor Cleaning Tutorial

[@jimcrookston2776]

Gotta love the engineer who positioned that flame sensor! I have a magnetic tipped tool (looks like a radio antenna). I use that to hold the screw or flame sensor in place while I'm working.

[@learnsavediy]

So true! I’ve cleaned so many sensors and this one is the worst positioned one of them all. Nice tip!

[@Mw2BeAsT2321]

Do you position the magnet under the sensor to hold it up? I’ve tried but can’t figure out a reliable way

[@jimcrookston2776]

@@Mw2BeAsT2321 I put the magnet up top. You can use it to hold the sensor or the screw. It frees up a hand while I'm working.

[@mjreer7579]

THANK YOU! Made it so easy for me. I can tell that you’re a natural at teaching and training. You even warned us about making sure a screw doesn’t fall into that tee hole! Only had to watch the video one time and got my heat back up and running. And not that age or gender matters here, but in an effort to encourage others; I’m a middle aged woman with zero HVAC skills 😂 If I can do it, you can do it! Thanks again for posting!

[@learnsavediy]

Way to go!!! That’s my hope with these videos is to show that anyone can do it! 😊

[@juliomartinez1682]

Awesome! You made me clean the flame sensor and that was my issue, you saved me at least $150! Thanks

[@learnsavediy]

Nice job! Glad to hear it worked for you

[@DaveWachter-w6z]

thanks for the help , getting furnace working here during a chilly seattle area spring

[@learnsavediy]

Awesome! Glad it worked!

[@mjreer7579]

I’m in the Seattle area too…this weather’s been crazy! It’s currently pouring rain while the sun shines 😂 At least this guy could help us out. Happy spring!

[@FishingAdventures-c1y]

Thank you for posting this. I am now a certified KZbin mechanic.

[@learnsavediy]

Welcome to the club 😉

[@JosephSanders]

Thanks for this! I had an issue where my furnace would run for about 5 mins then shut off. Went up in the attic and checked the flashing lights on the system, said to check the flame sensor! Followed your instructions and it seems to have fixed it, for now. I may go ahead and swap it to make sure the issue doesn't come back.

[@learnsavediy]

Glad it’s back up and running. They get caked with carbon build up that gets harder and harder to clean as each winter season puts it to use. I try to clean it annually to prevent that but it’s easy enough and cheap enough to replace

[@husseinalramini4506]

Thank you, saved my family a cold night!

[@learnsavediy]

Glad it worked!!!

[@tonesource]

Thanks for the video, will help a ton and save me a call for a simple fix

[@learnsavediy]

Glad it helped!!

[@anrivera1975]

Nice job. Thanks for showing

[@partshnc]

The removal of the flame sensor was easily shown, and cleaning was also not too difficult. It's incredible how a minor part may get filthy and lead to significant issues. We provide premium Lennox flame sensor and other Lennox furnace replacement parts.

[@learnsavediy]

The simplest repairs are the best repairs!

[@MightyMouse1222]

Easy in theory.... unless your gas line runs from that same side... bout to go have a freaking blast trying to get in there to fix mine

[@learnsavediy]

let us know how it goes and if you come back with any tips for other watchers who might face a similar situation.

[@claytonpoole1058]

Appreciate the video

[@learnsavediy]

Glad it helped! Thanks for watching

[@frankwrogg2515]

Thank you. This video saved me tons of time.❤❤

[@learnsavediy]

My pleasure!

[@west4127]

Putting them back in is the hard part

[@learnsavediy]

Especially when you keep dropping the screw!

[@west4127]

@@learnsavediy just happened to me lol

[@SC-lm4yw]

Only god knows what the people at Lennox are smoking. I can swap out 50 flame sensors for a Bryant unit compared to the time it takes to fuck around with this Lennox bullshit.

[@learnsavediy]

I guess they were thinking why make it easy when it could be hard!

[@fblack1]

Thanks! Easy instructions although thankfully my sensor was super accessible and easy to remove. I know I should be doing this annually but I always forget haha. Thankfully this years Alberta winter has largely been warmer than usual.

[@learnsavediy]

It’s always nice when it’s easier than the video 😂 stay warm!