Quote:
Originally Posted by CLBeerbower
Could be. From the outside it is sealed except for the exhaust. It was raining today. You thinking the control board could be wet and causing issues? The exhaust sounds weak if that makes sense. Usually the furnaces in my experience sound robust and pushing a lot of air. This exhaust note seems to stumble
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Take the outside cover off and check. A common Thor problem even without "air vents". They have a habit of not installing the door gasket correctly and when water gets on or under the control board you get the experience you are having.