I have 2 - LM 3800 openers and was wondering if anyone here has used and installed the 902LM wall control? I was trying to get rid of the 2 wall units and go to one. How do you like it and and how hard is it to install. Thanks
902LM LIFTMASTER 2 door wall control
- Thread starter larryv
- Start date
larry4406
Well-known member
I have a 3 door wall control, it replaced 3 individual units. Works nice, easy install, with mine I lost the time/temp function. The red LED's in the buttons are not equally bright.
The 3 button unit is a Liftmaster product, I found it on-line, I think it is listed in the owners manual. I don't remember the model number. Pictures of the 3 button unit and the 3 original units are attached.
Also, when I roughed in the power and data for the unit, I used a single gang box for power, a clip on data box with double sided tape, and then trimmed it out with a double gang plate with a duplex outlet on one side and a switch slot on the other. I then got a blank to close off the switch slot and drilled a hole thru it for the data wire. I used Cat-5 wiring as the roughin.
The 3 button unit is a Liftmaster product, I found it on-line, I think it is listed in the owners manual. I don't remember the model number. Pictures of the 3 button unit and the 3 original units are attached.
Also, when I roughed in the power and data for the unit, I used a single gang box for power, a clip on data box with double sided tape, and then trimmed it out with a double gang plate with a duplex outlet on one side and a switch slot on the other. I then got a blank to close off the switch slot and drilled a hole thru it for the data wire. I used Cat-5 wiring as the roughin.
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jimmie jam
Well-known member
i'm having 3 LM3800's installed next week. this controller is a liftmaster product? any info would be appriciated!