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Chamberlin Liftmaster Professional (CB24 & dual LYN400.24v)
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(16-05-2011, 06:54 PM)Guest Wrote: Mark, the setup allow me to set the limits by holding the direction buttons with no problem and the limits are set properly. However, after saving, either on closing or opening the gate will not stop and bounce back and give the RPM reversal error. Sometimes after trying a few times, the limits will not be set at all and i have to disconnect the system for a good number of hours and try it again, then the limit will be set but the gate will still not work properly and both closing and opening speed get very slow. What i am doing currently until i can resolve this problem is to manually stop the gate with the remote before it reaches the limit. In addition, does the arm needs to be oiled or greased? Please advise what else i can do.


I had the same problem, drove me crazy. Finally diognosed it as being a faulty arm. Replaced it and its been working fine for the last few months.
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RE: Chamberlin Liftmaster Professional (CB24 & dual LYN400.24v) - by Thomo - 09-10-2011, 08:40 PM

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