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Old 01-24-2010, 08:31 PM   #1
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Luxaire Gas furnace leaking water


Hi, my Luxaire gas furnace is leaking small amounts water from the bottom of the pan the inducer motor bolts too. I checked the hoses and they are all clear and clamped. I had this problem a few ago and I pulled the pan and made a new cork/rubber gasket from material I got at the autostore. It worked for a while but I don't think that material is really suited for water. I remade the gasket and it is leaking again. What should I use to repair/reseal this. I was told the part was no longer available. I inspected for cracks but did not see any. The leak is pretty obvious, is seaps out of the bottom edge of that pan.

I was thinking of trying a liquid gasket but don't want to make a big mess. Is there some rubber sealing material I can use? Any help appreciated.

Thanks

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Old 01-24-2010, 08:47 PM   #2
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Luxaire Gas furnace leaking water


Is it 80% or higher?

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Old 01-24-2010, 08:52 PM   #3
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I believe it is 90%.
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Old 01-24-2010, 09:04 PM   #4
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Luxaire Gas furnace leaking water


RTV will work
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Old 01-24-2010, 10:22 PM   #5
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Luxaire Gas furnace leaking water


What kind of RTV. I have some I bought at the auto store. I was afraid I would make a big mess but the gasket I made is not getting the job done.

I have Permatex Ultra Copper High temp RTV Silicone. Should I put the material on the furnace or the pan. Thanks

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RTV will work
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Old 01-24-2010, 10:35 PM   #6
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Luxaire Gas furnace leaking water


The ultra copper will work fine. I have used it for automotive gaskets which got much hotter then your part will get. Put the silicone on each side of your gasket and screw it back on . Need to the leave the furnace turned off untill it cures.
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Old 01-25-2010, 06:47 AM   #7
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Luxaire Gas furnace leaking water


Marty, use the RTV AND the gasket? I thought the RTV became the gasket? Thanks


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The ultra copper will work fine. I have used it for automotive gaskets which got much hotter then your part will get. Put the silicone on each side of your gasket and screw it back on . Need to the leave the furnace turned off untill it cures.
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Old 01-25-2010, 07:11 AM   #8
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Luxaire Gas furnace leaking water


I would use both so there's at least a chance of taking it off again if needed.
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Old 01-25-2010, 07:26 AM   #9
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Luxaire Gas furnace leaking water


Should I go with the cork/rubber gasket material or this rubber/paper material I also have. The cork seems to absorb alot of water and wick the water out of the seal. I bought some other material that is more like a rubber/paper which is what I'm currently using. It leaks more than the cork did. I guess it is thinner material so maybe it didn't seal well. So your saying use the gasket with RTV bead on both sides of gasket? Thanks for the info.

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