If he or she rules out a condensation leak there are other possibilities all still requiring a professional.
Furnace pvc exhaust pipe leaking.
If you have a condensation leak with a standard efficiency then its exhaust or flue pipe may be incorrectly sized.
Look at your flue pipe.
I had a high efficiency furnace installed in march of this year.
A condensate pumplooks like a small white box connected to the pvc drain pipe on your furnace.
You can prevent slime and eliminate drain tube clogs in two easy steps.
A standard efficiency furnace extracts some heat from the combustion gases and quickly vents them out the exhaust or flue pipe.
You need to call in a professional to assess what s going on.
Its job is to pump water toward the drain.
As the gases sit in the flue they cool eventually forming condensation which can leak out of your furnace into the surrounding area.
Today i noticed water leaking from a section of the pvc exhaust pipe which travels upward from the furnace across the ceiling and out of basement wall where it vents into my backyard.
Condensation from air conditioning coils contains bacteria that can form slime and clog the condensate pan drain tube.
To be more specific the pipe that comes out of the unit is attached to this leaking section which is attached to a pvc elbow then another piece of pipe and so on.
Bad clogged condensate pump.
The fix have a professional replaceyour condensate pump.
To see if the issue is the vent pipe follow these steps.
If your furnace exhaust pipe or flue pipe is leaking it can be a sign of a much bigger problem.
A poorly sized flue pipe.
There should be no water involved with a standard efficiency furnace.
A bad heat exchanger.
When you see water puddling around the furnace with the a c running you have a clogged condensate drain tube.
That way should there be a problem with the furnace that causes the exhaust temperature to exceed design the exhaust vent system has almost 40 more capacity to handle the excess heat before it reaches the point where it can fail.
However if your exhaust pipe is too big or it has no slope it allows too much air to circulate and traps the gases in the flue.
A clog or issue in the condensate system.
If you have a conventional furnace the two most likely reasons for dripping water include.
Here s what to look for.
