Condensation issue with KeepRite Furnace

Oct 26, 2013 3 Replies

Last Summer Air Conditioning unit was installed, this winter when furnace comes on, I see condensation (water dripping, drop by drop ) from below combustion air blower.



We notice that the heat intensity (hotness in air) from the air duct vents coming in the rooms has decreased, not as it used to be what it was before the AC unit was installed.



Can anyone please help me guide as to what is wrong. So condensation issue can be rectified.



Thanks Biz


The only place condensation can be coming from with a furnace is if it's a condensing furnace and it's coming from the flue gases condensing. That puts out a lot of water and it sounds like there is a leak. Since it started after the AC was added, it's possible they disturbed something, didn't connect it properly etc. Usually the drain for the AC condensate gets tied in with the drain for the gas furnace condensate, so it's possible they didn't connect something properly.

On 10/26/2013 1:20 PM, snipped-for-privacy@optonline.net wrote: ...

Or since it appears to be only the AC that was replaced, perhaps a leak. This _could_ be dangerous if so; get a CO monitor and check the flues while it's operating or better yet get the service folks out and check it out thoroughly. If the AC guys managed to poke a hole in the wrong place or it did just fail, a leak can be fatal...

Gas furnaces operate with positive pressure in the heat exchanger. A leak results in conditioned space air blowing out, not combustion exhaust being sucked it. They are all designed that way for safety reasons.

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