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Old 02-24-2011, 04:04 PM   #16
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I'm no lawyer and not sue-happy, but, it would seem to me that the installer should bear some responsibility for an incorrect install causing premature failure. Might want to check into this issue.


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Old 02-24-2011, 04:37 PM   #17
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Not exactly sure what you are describing and your terms are incorrect. The inducer fan/ventor fan attaches to a collector box (black plastic thing) and there is a gasket between the 2 of them. That gasket could leak water. Are you burning Propane?

If so that may be part of the problem if it is not burning cleanly. Inside the drain tubes of the secondary heat exchanger which dumps into the collector box there are some turbulator inserts. Is that what is missing. What is the tech doing now.
"Cut it twice and it is still too short".
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Old 02-24-2011, 05:39 PM   #18
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Originally Posted by hamilton435 View Post
An analysis completed by a Lennox specialist shows the flue pipe leaving the system was cracked. Through the last 5 years water eventually made it's way to the control board and he found rust on the board. In addition, when he removed the cover behind the vent blower he found a part missing from one of the vent pipes going to the heat exchange unit. I think it is called an actuator, not sure. The inside of this black cover was burned. It appears these part was missing during install and the pipe was cracked. My builders response has been, " Your two year warranty is over". The whole system needs to be replaced......Thanks for all you previous advice.
That stinks. I'd order a new circuit board instead of replacing the furnace. The flue gasses at the collector box are not hot enough to burn or melt the plastic. Could be soot, that can be cleaned out.

When was it actually installed. The board has a 5 year warranty


Last edited by Marty S.; 02-24-2011 at 07:01 PM.
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