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    shawnbell's Avatar
    shawnbell Posts: 5, Reputation: 1
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    #1

    Nov 21, 2009, 07:40 AM
    Bryant furnace limit switches where to find them?
    I understand that for my code 13 and 33 fault I can try to take the limit switch out and try to tap it out of the stuck poss. I just I'm not sure where the switches are.
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
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    #2

    Nov 21, 2009, 08:50 AM
    The main limit switch is located on the cell panel, usually just behind the gas control. It will appear as a small flat plate (about the size of a credit card) with 2 wires connected. Use care when removing, as not to let the air shield fall into the furnace. The small disc on the end of the buss bars is the limit sensor. If tapping it causes it to reset, you have an ongoing overheating issue with the furnace. Also check the blower housing for an auxiliary limit switch.
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    shawnbell Posts: 5, Reputation: 1
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    #3

    Nov 21, 2009, 07:06 PM

    Thank you for your help KC13. My next question is what is the best way to get the limit switch out? Do I get a small wrench and reach around everything or do I take every thing out of my way? Thank you for your time.
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    KC13 Posts: 2,556, Reputation: 99
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    #4

    Nov 21, 2009, 07:32 PM
    A 1/4" box end wrench will do if you want to minimize dis-assembly. Try tapping the butt end of a screwdriver between the terminals on the fiber plate (see pic 1). There may be another limit switch mounted on the blower, with a manual reset button (see pic 2).
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    shawnbell Posts: 5, Reputation: 1
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    #5

    Nov 22, 2009, 06:34 AM

    Thank you KC13 you have been a great help. I wish everyone out their was as helpful as you.
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    KC13 Posts: 2,556, Reputation: 99
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    #6

    Nov 22, 2009, 12:03 PM
    T'wasn't nuttin'... did you find anything (dirty air filter?) that may have been causing the unit to overheat?
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    shawnbell Posts: 5, Reputation: 1
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    #7

    Nov 25, 2009, 11:20 AM

    Yes it was the air filter. I replaced the limit switch with the fiber plate and it is still doing the same thing. I can't seem to push the reset on the other switch, so I'm going to replace that one also. I hope that takes care of it then, if not I will be in contact. Thanks again
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    shawnbell Posts: 5, Reputation: 1
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    #8

    Nov 25, 2009, 03:50 PM
    I gave up and had someone look at it, it was the fan motor. I didn't notice the fan was running backwards. Thank for your help again.
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