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Have a Nordyne gas furnace- unit mod#M1MB 077A AW - fails on…

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Have a Nordyne gas...

Have a Nordyne gas furnace- unit mod#M1MB 077A AW - fails on flame failure. Igniter glows,main flame comes on,goes into failure. When reset it will run for days and again have same problem. Could there be a problem with circuit board?

Contractor's Assistant: Did you double-check the thermostat? And what about the pilot light?

No pilot light- all timing through circuit board.

Contractor's Assistant: Do you plan on doing the work yourself?

Yes, I am a retired service tech..

Contractor's Assistant: Anything else we should know to help you best?

Just want to know if these circuit boards have been a problem. What is the warranty time on parts for this Nordyne furnace?

Submitted: 8 months ago.Category: HVAC
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Answered in 1 minute by:
11/14/2017
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 8 months ago
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 23,121
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified

Hello,

My name is Billy.

Have you already cleaned the flame sensor with steel wool?

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