Garage Door Zone

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Garage Door Zone

Questions & discussions of garage door operator problems and solutions.

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3 posters

    LiftMaster 3240M 1/2 HP Garage won't open or close - trolley troubleshooting

    avatar
    imapilot


    Posts : 2
    Join date : 2017-10-02

    garage - LiftMaster 3240M 1/2 HP Garage won't open or close - trolley troubleshooting Empty LiftMaster 3240M 1/2 HP Garage won't open or close - trolley troubleshooting

    Post  imapilot Mon Oct 02, 2017 4:33 pm

    I am having difficulty with the LiftMaster 3240M 1/2 HP. For some reason the garage door wont stay down. There is damage where the L arm connects to the garage door, is this likely the cause? Looking for any suggestions on how to fix this problem.. Thanks so much!



     

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    GDZone
    GDZone
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    Posts : 340
    Join date : 2009-04-28

    garage - LiftMaster 3240M 1/2 HP Garage won't open or close - trolley troubleshooting Empty Re: LiftMaster 3240M 1/2 HP Garage won't open or close - trolley troubleshooting

    Post  GDZone Tue Oct 03, 2017 12:52 am

    Yes I would say that you need to fix the arm and top section. When the arm twists the operator is most likely sensing resistance causing the operator to reverse. You should put a strut (also known as a u-bar stiffener) across the top section to stiffen the section. Then reattach the operator mounting bracket & arm securely. You'll need to go to your local garage door company for the strut since it will be the width of the door and not something an online company would sell or shipping would be way too expensive.


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    Brian
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    avatar
    imapilot


    Posts : 2
    Join date : 2017-10-02

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    Post  imapilot Tue Oct 03, 2017 11:21 am

    I'm going to get working on this. Thanks for the help, Brian!
    avatar
    agarageguy


    Posts : 7
    Join date : 2017-10-03

    garage - LiftMaster 3240M 1/2 HP Garage won't open or close - trolley troubleshooting Empty Re: LiftMaster 3240M 1/2 HP Garage won't open or close - trolley troubleshooting

    Post  agarageguy Tue Oct 03, 2017 2:10 pm

    imapilot wrote:I'm going to get working on this. Thanks for the help, Brian!
    In addition to that it wouldn't hurt to add an operator reinforcement bracket ( ORB ) for short. these can be found online. As GDzone stated the strut is definitely necessary. The ORB shouldn't cost much more. Ask your local company about it.

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