Nordyne M1MB 077A BW Won't stay lit

Questions about repairs and parts for Nordyne furnaces, air conditioners and heat pumps for manufactured homes including Intertherm, Mac and Miller brands. Click here for Nordyne parts.

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Posts: 1
Joined: Mon Oct 24, 2011 5:58 pm

Mon Oct 24, 2011 6:19 pm

M1mb replaced ignitor HSI, this my flame sensor also? What r the causes of not staying lit? Also can I get a picture of the burner, ventui, and everything else that should b included on the burner I think I may b missing so parts, this my friends furnace and walked in2 a mess now, and now it's getting cold thanks 4 any help

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Tue Oct 25, 2011 5:36 pm


A manual is available here that would have break-downs of the parts: ... ace-Manual

You can't fail if you don't try!

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Joined: Wed Apr 07, 2010 10:07 am

Wed Oct 26, 2011 11:32 am

Yes igniter is flame sensor. If burner ignites then goes out shortly afterwards either the igniter is positioned incorrectly or there may be a spider web in the main burner oriface that is blocking the flow of gas to support the flame.