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    Crash629's Avatar
    Crash629 Posts: 3, Reputation: 1
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    #1

    Dec 2, 2009, 12:32 PM
    Bryant plus 90i code 34
    Bryant plus 90i. A 355 mav I believe. Will not ignite. I get code 34 then code 14. I have read the codes and have tried cleaning the flame sensor, blowing out all the condenser tubes and the green wire ground wire is connected to the chasis. I have taken the flame box cover off and it still didn't work so I lit it. It worked until it shut down and had to reignite itself and couldn't. What should I try next
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Dec 2, 2009, 02:37 PM
    Go to this thread and follow the directions.

    https://www.askmehelpdesk.com/heatin...ut-414840.html
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
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    #3

    Dec 2, 2009, 05:13 PM
    Observe the operating sequence from start-up. If you don't see the glow of the hot surface ignitor, either the ignitor has failed (most likely) or the circuit board is failing to power the ignitor (least likely).
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    Crash629's Avatar
    Crash629 Posts: 3, Reputation: 1
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    #4

    Dec 3, 2009, 03:47 PM
    Thank you all this site was amazing in helping figure out the problem. I never opened a furnace until yesterday and I now sit in a heated home and the best part is it only cost me $27.00. The cost of a new ignitor. I was quoted from $350-$500 to fix this problem and all it took was a few hours, some helpful reading on this site and 27 bucks plus I now know a he'll of a lot about my furnace lol. Thanks again everyone
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
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    #5

    Dec 3, 2009, 11:46 PM
    Glad you got it running
    elchecho's Avatar
    elchecho Posts: 3, Reputation: 1
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    #6

    Dec 27, 2009, 05:58 AM
    I have the same problem but very randomly. Happens once a week or so, and is, most of the times, around 6am. The furnace is blowing cold air and displaying the code 34. I turn the power off, and on again: starts no problem... every time. It is happening for the last 5 years. I replaced the flame sensor, and I believe I replace the gas igniter (not sure).
    The problem has not stopped. Any ideas?
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
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    #7

    Dec 27, 2009, 06:53 AM

    Post exact model #. When this problem occurs inconsistently, it can be tricky to pinpoint.
    elchecho's Avatar
    elchecho Posts: 3, Reputation: 1
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    #8

    Dec 27, 2009, 12:21 PM
    The model number is 355MAV060100ADKA Manufacture 8/1998. I know, it never repeats when I reset it.
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
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    #9

    Dec 27, 2009, 12:31 PM

    If the ignitor gasket is leaking, or the main burners are dirty, the problem you are experiencing may result.
    elchecho's Avatar
    elchecho Posts: 3, Reputation: 1
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    #10

    Dec 27, 2009, 02:29 PM
    I will start replacing the ignitor and gasket. I'll let you know. Thank you for your help.
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