Granby furnace issues

[Wandering Sagebrush]

Hey guys, a friend of mine helped me look at it today And sure enough wasps made a nest in the igniter. Cleaned it off and it works like a champ. I couldn't see anything from the exhaust vent but sure enough. Thanks for the help. Time to check the same thing in the fridge. Damn little critters.
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Spiders like them, too. You can buy stainless screen covers to keep them out.

 

[Advmoto18]

Great news you figured it out! Bees, wasps, spiders, I would have never guessed!

 

[northshorehenry]

Wow, a new camper. What are the odds that bugs already got to it. Glad it worked out.

 

[BWSracing]

"New" to me 2011 Granby.


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[Old Crow]

So, BWS..... I wonder if you would mind providing more detail on what you saw regarding the wasp nest at the igniter. What is the 'it' in 'Cleaned it off'? Are you saying you removed the igniter/flame sensor assembly and found the electrode rods had a mud nest across them? So was it likely an electrical short rather than an air-flow blockage?

Also- in retrospect, were there any subtle clues it was there? (I guess I'm assuming it's a mud nest and the combustion-air fan may have pushed small bits of mud and/or insect remnants into the exhaust tube where they'd be visible for troubleshooters to realize, 'OK, time to pull the igniter.')

-OC

PS- Oh, yeah..... And what model furnace is it?