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I have water leaking from the bottom of the unit when it is operating.

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Water is collecting and the runnung out of the bottom of the unit when it operates. Do not see water coming out the drain tube on the side of the unit. Unit is at least 12 yrs old. A premier 90.

I turned off the water to the humidifier.

On 2013-01-15 JB wrote:

Hi,

Could be a few things (condensation finding its way out of the furnace, secondary heat exchanger, humidifier, etc.), but you can learn more here: http://answers.yahoo.com/question/index?qid=20061003161523AAHsuMD.

And there is a lot of good information here: http://www.angieslist.com/articles/furnace-water-leak-explained.htm.

In any event, this could be a sign of a larger problem either occurring or about to occur and could lead to larger leak or more substantial damage to the furnace. I didn't recognize a problem in a furnace in a rental unit I had and when it let go there was water all over the place. This raised issues with mold and all kinds of things.

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