A/C- Furnace problem - Canadian TV, Computing and Home Theatre Forums

vmpv · 2012-08-11, 01:59 PM

I noticed a slight water buildup below my furnace and traced it to a point on the top of the furnace where the duct-work begins. There is a black hose attached to a white module that says "caution coil pressurized". This module is held in place to the duct-work by a putty like substance that has cracked. Air and a bit of moisture are escaping from this crack. Is this something I should be greatly concerned about?

ScaryBob · 2012-08-11, 02:28 PM

It sounds like the condensed water vapour (water) from the cooling coils is leaking out. That's not a serious problem. The cracked caulking can be repaired. Make sure the drain hose (black pipe) is not plugged as well. There should be water exiting the hose into a drain or sump pump. (If it's a sump pump, make sure it's functioning properly. It should pump the water to a drain pipe when full.)

vmpv · 2012-08-11, 02:38 PM

Yes the drain hose was plugged and since cleared. Thanks for the advice. What type of putty/substance should I use to repair?

ScaryBob · 2012-08-11, 03:51 PM

Local building suppliers (like Home Depot) should have something made for furnace ducts.

vmpv · 2012-08-11, 05:13 PM

Perfect. Thank you

2012-08-11, 01:59 PM	#1
vmpv Join Date: Jan 2006 Location: Whitby, Ont. Posts: 756	A/C- Furnace problem I noticed a slight water buildup below my furnace and traced it to a point on the top of the furnace where the duct-work begins. There is a black hose attached to a white module that says "caution coil pressurized". This module is held in place to the duct-work by a putty like substance that has cracked. Air and a bit of moisture are escaping from this crack. Is this something I should be greatly concerned about?

2012-08-11, 02:28 PM	#2
ScaryBob Veteran Join Date: Feb 2009 Location: The Dandelion City Posts: 7,133	It sounds like the condensed water vapour (water) from the cooling coils is leaking out. That's not a serious problem. The cracked caulking can be repaired. Make sure the drain hose (black pipe) is not plugged as well. There should be water exiting the hose into a drain or sump pump. (If it's a sump pump, make sure it's functioning properly. It should pump the water to a drain pipe when full.) __________________ At 20 I had a good mind. At 40 I had money. At 60 I've lost my mind and my money. Oh, to be 20 again. --Scary

2012-08-11, 03:51 PM	#4
ScaryBob Veteran Join Date: Feb 2009 Location: The Dandelion City Posts: 7,133	Local building suppliers (like Home Depot) should have something made for furnace ducts. __________________ At 20 I had a good mind. At 40 I had money. At 60 I've lost my mind and my money. Oh, to be 20 again. --Scary

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2012-08-11, 02:38 PM	#3
vmpv Join Date: Jan 2006 Location: Whitby, Ont. Posts: 756	Yes the drain hose was plugged and since cleared. Thanks for the advice. What type of putty/substance should I use to repair?

2012-08-11, 05:13 PM	#5
vmpv Join Date: Jan 2006 Location: Whitby, Ont. Posts: 756	Perfect. Thank you