My DKE is acting up and now opens 2 of my doors with one code

[PDF]GARAGE DOOR OPENER Model 3265 1/2 HP ... - LiftMaster

www.liftmaster.com/.../en.../tucmanuals/114A3044.pdf Chamberlain GroupThe Chamberlain Group, Inc. 845 Larch Avenue. Elmhurst ... Please read this manualand the enclosed safety materials carefully! ? Fasten the manual near the ...

The gears are all the same with the exception of the belt drive units that have a different top sprocket , you can find the part # on the internet simply by putting in the model # of your opener and identifying whether you have a belt drive or chain drive machine , you can also find the part on Ebay by putting sears/liftmaster or chamberlain sprocket gear assembly in the description ....All 3 of those models are made by Liftmaster being the main Brand ! Liftmaster manufactures the sears craftsmen for Sears and also goes under the chamberlain brand name that k mart and Home depot and Lowes sells ! Liftmaster is the worlds largest manufacturer of garage door openers and all 3 machines are interchangeable with their parts ! Hope this helps you Sincerely Glenn

Have the wiring checked out for proper voltage and ground, when it is acting up. The seasonal change may affect the ground rod, it may not be well grounded.

Remove the cover from the motor unit and check the drive gear. It is a white nylon gear just in front of the motor. It will be obvious if it is bad. A new gear kit comes with instructions. The part number if 41A2817.

To program that thing you need to locate the smart/learn button on the back of the opener near where all those white wires go. Press and immediately release this and then walk over and key in any 4 digit code you like and then press 0. The zero acts as the enter button on other keypads.

Try opening the drive with the emergency exit, there is a small hole next to the eject button, insert a pin or needle to open the tray with that, in most cases the drive tends to act like this after 2-3 years of use. not an error with the drive but the belt on the motor that opens the tray gets loose.

It sounds like you may have a spring problem. Release the door from the opener and see how it acts manually. Open it as far as the opener does and then see what happens when you release it. Also the weight of the door should give you a clue.

It sure sounds like a broken spring. Sometimes the break can be difficult to see. How heavy is the door to lift manually. This will give you a good idea.

Check the drive belt for tightness. Check for a bent or obstructed track. Overhead door openers have a safety clutch built in in case something or someone gets into the path.

wbuero, I had same problem two weeks. The door springs weaken over time and may need to be tightened - check opening force manually. Manufacturer also recommended reviewing install guide to be sure opener arm is attached at proper angle. The opener on my professionally installed door was not connected properly. It that doesn't work, the opener drive train or door track/wheels may need maintenence.