Forum Discussion
CavemanCharlie
Aug 06, 2014Explorer III
Check the outside exhaust and intake vent for restrictions. Wasp just love to build a nest in them. Got a dollar that says your furnace is plugged up with a wasp nest. If you lucky your may be able to knock them off and suck them out with your vacuum cleaner. I once had to remove a furnace and then I dumped a whole coffee can full of wasp nest out of it after I did.
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