Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
Door does not close properly. It will stop about 2 -3 feet from floor and reverse. It will do this in 2 to 3 places before it gets to the ground. Sometimes it will do it in the up cycle but mostly in down. Please advise as it is growing quite annoying. THANK YOU AL.
Get a new garage
it drives me nits
Posted on Oct 30, 2008
Same thing happened to my garage door. Take some WD40 and put on tracks. Worked like a gem and it took a 91 year old lady to tell me to do that!!
Posted on Jul 24, 2008
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.
Posted on Jul 22, 2008
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Posted on Jan 02, 2017
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To avoid risk of electrical shock, severe personal injury or death; disconnect power to unit before servicing, unless
testing requires power. Discharge capacitor through a 10,000 ohm resistor before handling. Wires removed during
disassembly must be placed on the correct terminals to ensure proper grounding and polarization.
Here are the instructions from the manual below.
1. Open door and remove all storage buckets.
2. Remove toe grille.
NOTE: Shut off water supply before performing Step 3.
Have a bucket ready to catch spillage from tube.
3. Loosen water-tube clamp screw. Loosen plastic
water-tube union nut. Pull water tube away from
union nut and through tube clamp.
4. Remove screw that mounts door closure to top
surface of bottom hinge.
5. Close door.
6. Remove screw holding top hinge cover in place.
Remove top-hinge cover.
7. Unplug wiring harness connectors. Remove ground
screw and ground wire from top hinge.
8. Remove top hinge and hinge bushing. Pull hinge and
bushing off wiring harness.
NOTE: Hinge shim is glued to top of cabinet and must
be left in place.
9. Lift door about 3 inches to bring lower hinge bushing
up, off hinge pin.
10. Set bottom edge of door on protective pad. Remove
hinge pin (with door-closure tab) from bottom hinge
11. Reverse procedure to rehang door.
For plastic tubing click HERE
and for a simple snap on coupling I want you to call to insure you get the correct size and snap on union.
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