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    bigd53545's Avatar
    bigd53545 Posts: 4, Reputation: 1
    New Member
    		  
    #1

    Oct 6, 2009, 10:42 AM
    Bryant furnace Main Burner Doesn't Light
    I have a Bryant Plus 90 furnace, model 398AAW036080D , series G. The draft inducer and pilot light go on, but the main burner doesn't light. While tapping on pressure switch with a screwdriver handle the main burner ignited. The switch is attached to a rubber diaphram. It has a yellow, orange, and brown wire attached to switch, and an inlet and outlet hose attached to diaphram. I am curious if this switch/diaphram assembly would solve my problem if replaced. I would also like to know how this works in activating the main burner. Thank you for any assistance.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Oct 6, 2009, 01:03 PM
    Looks like you need one of these.

    New Upgraded Factory Replacement Part 398AAW Pressure Switch Replacement Kit. 3 Wires 2 Hoses (BDP: American HVAC Parts
    bigd53545's Avatar
    bigd53545 Posts: 4, Reputation: 1
    New Member
    		  
    #3

    Oct 7, 2009, 08:26 AM
    Quote Originally Posted by hvac1000 View Post
    Looks like you need one of these.

    New Upgraded Factory Replacement Part 398AAW Pressure Switch Replacement Kit. 3 Wires 2 Hoses (BDP: American HVAC Parts
    Thank you for the help. I'll replace with updated part, and hope it works.
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