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  1. 09-23-2012, 02:15 PM

    Thread: Testing a pressure switch on a Bryant Plus 90 398AAZ

    by Ltvscout
    Replies
    1
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    470

    Testing a pressure switch on a Bryant Plus 90 398AAZ

    I'm having a problem where the furnace is not firing. The inducer motor runs for about 20-25 seconds then shuts off.

    I'm troubleshooting all the safety items to see if something there is causing...
  2. 09-23-2012, 12:22 PM

    Thread: Bryant Plus 90 398AAZ Not Firing

    by Ltvscout
    Replies
    6
    Views
    740

    Unfortunately, this unit is from around 1990,...

    Unfortunately, this unit is from around 1990, before they had the newer intelligent systems that would display error codes.
  3. 09-22-2012, 07:34 PM

    Thread: Bryant Plus 90 398AAZ Not Firing

    by Ltvscout
    Replies
    6
    Views
    740

    Thank you, gentleman.

    Thank you, gentleman.
  4. 09-22-2012, 06:41 PM

    Thread: Bryant Plus 90 398AAZ Not Firing

    by Ltvscout
    Replies
    6
    Views
    740

    Bryant Plus 90 398AAZ Not Firing

    Went to use the furnace for the first time this fall last night. Turned on the thermostat and heard the inducer motor spin up. I walked away but then noticed 5 mins later that the furnace wasn't...
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