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Furnace is leaking water - Goodman Heating & Cooling

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This is not a lot to go on.

I assume since you called it a furnace, you have hot air heat and central air conditioning. If so, the only way a furnace/AC unit can generate water is by condensing moisture from the air. This is common to all air conditioning and removes humidity from your home. If so, this water, called condensate, must drain. The condensate is collected at the AC cooling coil that is typically located on top of a vertical upflow furnace or downstream of a horizontal furnace. If the drain is clogged, it will overflow and create a mess in and around the furnace. If this is your problem, cleaning and clearing debris may solve the issue. I suggest starting with the easiest accessable part of the drain path. You may need to open the panels enclosing the AC coil and clean the small pans at the bottom of the coil and clear openings from above that look similar to a laundry tub drain. If you get that far and find rust holes in the pan, repairs are needed. If you have an electric condensate pump that may also be the cuprit and require cleaning. Check and clear all drain lines from the coil connection to the final dicharge - sump pit or outside.

Posted on Oct 07, 2008

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Furnace has water under it, why? Its a Dayton gas furnace.


There are several questions that need to be answered about what type of system you have, but i found this posting that may help:
As your gas furnace runs, is there water leaking at the base? Is the furnace's air filter wet, too?There are a few things that could be happening here. But if you have a high-efficiency furnace, here's the most common cause: a condensation leak.
We'll explain why a furnace creates condensation, and what's causing it to leak out of your furnace.
Note: You'll know if you have a high-efficiency furnace if:
  • The yellow energy guide tag says your furnace's efficiency is 90% or higher AFUE.
  • The vent/flue pipe is white PVC as opposed to metal.
Why a high-efficiency furnace creates condensation
How in the heck does a high efficiency furnace create condensation/water anyway?
It's all about how the furnace extracts heat from combustion gases.
A lower-efficiency furnace extracts some heat from combustion gases and then quickly vents them out the flue pipe.
But a high-efficiency furnace, to extract more heat, has 2 heat exchangers. These allow the furnace to extract heat from the gases for a longer period of time. This causes the combustion gases to cool and then condense.
That condensation then exits out your home through a drain. But if that water is pooling around the furnace, there's a problem preventing it from draining properly.
Causes of a condensation leak around a high-efficiency furnace
  • Clogged condensation tubing
  • Clogged condensation drain
  • Breaks in the condensation line
  • Issues with the condensate pump (if you have one)
You'll need a furnace technician to diagnose which of these is the issue and then fix it.
Other causes of leaking water around a furnace
If you have a conventional, standard-efficiency furnace...then its flue pipe may be incorrectly sized.
If you have a whole-house humidifier connected to the furnace...there may be an issue which is causing the humidifier to leak into your furnace. Your humidifier should be getting annual maintenance from a professional to prevent this.

Dec 13, 2016 | Dayton Heating & Cooling

1 Answer

Ruud achiever 90 plus furnace-water leaks from the drain pipe


This furnace should condense, as long as it goes into the drain. If it is leaking inside the furnace, there may be a seal that needs replacing in either the pvc drain pipe or concentric drain trap needs resealed.

Feb 21, 2015 | Ruud Heating & Cooling

1 Answer

Why is water leaking from a RuuD furnace


Water can leak from any furnace for a couple of different reasons.
If it is in AC mode, the AC evaporator could be freezing due to lack of refrigerant or airflow (check your furnace filter). Or the AC drain could be clogged normally a hose or PVC pipe coming from the evaporator.
If it is in heating mode could be high efficiency furnace not draining properly or leaking humidifier.

Jul 28, 2014 | Heating & Cooling

1 Answer

Water is leaking out of the bottom of my furnace. could something be plugged?


What type of fuel does your furnace burn?

Gas does condense more water when it fires, that oil--
and that condensing can be running out--- Usually that would be toward the discharge section of the furnace-- as the exhaust gasses might cool and condense upon leaving the furnace.

Or-- do you have a humidifier on the furnace--and maybe the little water sump is overflowing?

Be brave, and open a panel or two, and look around-- above the area the water is leaking out of-- what is in that area?

Jan 19, 2011 | Heating & Cooling

1 Answer

Water leaking out bottom of Goodman propanefurnace drain tubes are clear. draining out under the actual furnace


Check the top of the gas flue. Make sure the cap is on it. If not it will allow rain to get inside. If this is only a furnace, this is the only thing it could be. Nothing produces water in a furnace. If it has an A/C coil attached. The condensation drain might be stopped up allowing it to leak.

Oct 13, 2009 | Goodman GMS90703BXA Heater

1 Answer

Water dripping from furnace while air conditioner is running.


you need to have a drip line that take away the water when the ac is on so the water does not goes into the furnace ,also check for leaky line that could causing water to leak back

Aug 20, 2009 | Heil Sound PR-40 Professional Microphone

1 Answer

My furnace is leaking water when the heat is running


You probably have a 90+% efficient furnace. They produce condensation. Does it have PVC vent pipes? If so there is a drain tube for condensation.

Jan 23, 2009 | Heating & Cooling

1 Answer

Goodman furnace leaking water


Yes you can use regular pvc glue. You should use pvc primer before you glue it.

Jan 21, 2009 | Goodman GMS90703BXA Heater

3 Answers

GMPN goodman furnace: Water leaks from the base.


Check the drain tubes inside the furnace. There may be a loose connection or a split tube.
The unit could also leak from the gasket between the secondary heat exchanger and the vent fan housing. The secondary heat exchanger ould also be leaking or cracked.
Hope this helps.
Matt

Jan 08, 2009 | Heating & Cooling

1 Answer

Furnace ices up,lines ice up,water condensation leaking in to duct work


1.check filter if really dirty change
2. check Refrigerant if low get charged by a tech
3. check the evaporator coil if dirty clean

Oct 16, 2008 | Heating & Cooling

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