1992 American Standard (model AU080R936A1) suddenly won't start

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Old 01-01-13, 12:28 PM
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Question 1992 American Standard (model AU080R936A1) suddenly won't start

My American Standard gas/hot air furnace suddenly won't start after 15 year of
trouble free operation. I called a local service technician, from the company that sold me the furnace and installed it. The technician told me, and I quote, "The main control system has failed.". He quoted me a price of $2,129. to, "Renovate furnace control system and restore to factory spec.". This seemed excessive to me and I have done some research on the system and I have found that the only part of the furnace that American Standard/Trane calls a control is their part CNT1038 "control-integrated furnace, 2 stage, 25 VAC, 60hz,...., which is a Trane Control Circuit Board D330934P01-CNT1308-CNT01308. This part lists for $249.99.

I don't want to buy the part and find out that something else is wrong. How can I tell if this is really what I need. How difficult is it to install it correctly if I purchase it?

Thanks for your help, Jim
 
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Old 01-01-13, 12:36 PM
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missing part of your model number. Please post the FULL model number and I can verify the control board part numbers from American Standard/Trane.

I have NEVER heard of such BS "Renovate furnace control system and restore to factory spec"

Especially for a price of $2,129. I want to verify the correct control replacement as SOME furnace's controls have been updated and come with new control board, inducer, and full wiring harness. This type of repair in my area is typically done for about 1/2 of the price you were quoted.
 
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Old 01-01-13, 01:09 PM
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I agree that quote is too high.

Sounds like the furnace has the radient heat sensor that is a pain to retrofit to flame rectification.

I don't recommend this job for a DIYer if this is the case. I recommend getting another quote.
 
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Old 01-01-13, 04:06 PM
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Wink request for complete model number

Kevin,
Thanks for your reply. You have helped me already by identifying what you called BS. Would the complete model number be AUD080R936A1 ? The serial number is 29501357. Tell me if you need additional information.

Thanks again, Jim
 
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Old 01-01-13, 04:10 PM
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Wink Missing model number

I guess I left out the "D" in AUD080R935A1. Please let me know if you need more information.

JimWC
 
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Old 01-01-13, 04:24 PM
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I feel sorry for repairmen that are sent out by their bosses to essentially support and benefit a criminal enterprise.
 
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Old 01-01-13, 06:23 PM
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The superseded control board is :

[TABLE]
[TR="class: DataTableResults"]
[TH]Part Item Number[/TH]
[TD="colspan: 3"] CNT02184[/TD]
[/TR]
[TR="class: DataTableResults"]
[TH] Description[/TH]
[TD="colspan: 3"] CONTROL; INTEGRATED 2 STAGE [/TD]
[/TR]
[/TABLE]


There is NOTHING that would make this repair near that cost you were quoted. You should contact the repair company and ask for an explanation!
 
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