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Liftmaster CB1 / SCS300K - left arm only engages after release then reengage

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Liftmaster CB1 / SCS300K - left arm only engages after release then reengage
telnet123 Offline
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08-09-2023, 02:06 PM (This post was last modified: 08-09-2023, 05:42 PM by telnet123. Edit Reason: grammar )
Hi - I have a Liftmaster CB1 / SCS300K x2 wing gates, and it seems like every year something strange happens to them Smile

Starting a few days ago, the left gate M1? stopped opening. If I open the gates, the right opens, I then have release the drive on the left one, then reengage it and then you can hear the motor engage. I have tried to relearn them but no luck.

Any ideas.
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Liftmaster CB1 / SCS300K - left arm only engages after release then reengage - by telnet123 - 08-09-2023, 02:06 PM

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