Sears Building Materials - Page 6 - Recent Questions, Troubleshooting & Support

Make sure the trolley isn't jammed against the bolt just in front of the motor.

Sears Craftsman... | Answered on Apr 06, 2016

The model number you give is a part number for a circuit board.

Sears Craftsman... | Answered on Apr 02, 2016

this probably means you have a bad photo eye if you happen to have to doors side by side may be picking up on other sides photo eye just switch sides from left to right, however if the lights are coming on but does not mean that photo eye is not bad it has a small circuit board inside of it...

Sears Craftsman... | Answered on Mar 15, 2016

The radio frequency has changed and the old keypad will not work with the new opener.

Sears Craftsman... | Answered on Feb 26, 2016

You may just have a weak battery in the keypad or the keypad is going bad and losing range. This is an indication of a weak signal.

Sears Craftsman... | Answered on Feb 16, 2016

Most likely the unit has a sensor that activates the light when you walk around or open the door.
if no one is in the room it should go off in 5 minutes, but if someone goes back in there to check it goes back on again.

Under the light cover there should be a switch where you can disable it or make it less sensitive.

Sears Craftsman... | Answered on Jan 15, 2016

Look at the LED light next to the SMART/LEARN button on rear of the motor unit. You may need to remove a light lens cover in order to see it. If the light is flashing rapidly this means you have a stuck button on one of your remote controls. Take the batteries out of each remote control. When you remove the batteries from the bad remote, the light will stop flashing. This remote needs to be replaced.

If one of your neighbors remote controls is inadvertently programmed into your receiver, you door will open when their remote is activated. If this happens you will need to clear out your receiver and reprogram your remote controls. Press and hold the smart/learn button for 6 seconds or until you see the small LED light near the button turn itself off. If the above steps have been followed and the symptoms continue, there may be an electronic short in either the wall control button or the receiver logic board. In this case, remove the wall control wires from terminals 1 and 2 on the motor unit. Should the symptoms persist after the wires are removed, replace the receiver logic board. If the symptoms stop with the wall control wires removed from the motor unit, replace the wall control button, and the wires leading to the wall control button.

Sears Craftsman... | Answered on Jan 13, 2016

You must have a three function wall switch. This means in addition to a button that opens and closes the door there are two other buttons on the same wall switch. One is marked LIGHT and the other is marked LOCK.

To have your lights come on automatically when you walk into an open garage you must START with the lights ON. To turn the feature on, turn the lights on manually with the wall switch, then press and hold the LIGHT button for about 10 seconds until the motor unit light bulbs flash. Now, if the light bulbs are on, manually turn them out and then walk out through the open door. The light bulbs should come on.

To disable this feature, start with the light bulbs OFF and everything else is the same.

Sears Craftsman... | Answered on Dec 11, 2015

You may not have had the motor shaft pushed all the way back when you tightened the coupler after replacing the worm gear. Loosen the coupler up and from the front of the motor (opposite end in which the coupler is on) push the shaft back as far as it will go. Hold it there while you tighten the coupler back up and then try it.

Sears Craftsman... | Answered on Nov 17, 2015

Make sure your door sensors are pointed at one another and the small light on each one is lit and not flickering.

Sears Craftsman... | Answered on Nov 17, 2015

Craftsman (LiftMaster) Garage Door Opener Won't Open or ...

? 9:29
Aug 9, 2011 - Uploaded by Kris Kasprzak
Learn how to replace stripped gears in your Sears Craftsmanautomatic ... This instructions should be good for a Liftmaster,Chamberlain, ...

Manual Disengage for LiftMaster/Sears Garage Door ...

? 1:24
May 21, 2012 - Uploaded by Brandon Bailey
Manual Disengage for LiftMaster/Sears Garage Door Opener Replace the Circuit Board on Chamberlain Liftmaster, Sears, and Craftsman ...

Sears Craftsman... | Answered on Nov 08, 2015

There is a fuse in a Model M-230T and I have seen a service man change it.Now that the fuse has blown again, I want to change it myself BUT can't now find it!

Can anyone please offer a guide to changing the fuse?

Sears Craftsman... | Answered on Nov 07, 2015

unit must be ancient. try sears for a universal radio control set. if unit is as old as i think, i would toss it and get a new one. you will not be able to get any parts for this unit and it does not have safety beams.

Sears Craftsman... | Answered on Nov 01, 2015

The most likely problem here is that your wall control is bad. I would disconnect the 2 wires going to it and I think you will find your remote works. Replace the wall control.

Sears Craftsman... | Answered on Oct 16, 2015

issue with counterbalance springs. when you release trolley, door should balance at half way open. if i rises all the way on its own, or falls closed, then the springs are an issue and motor and trolley are working very hard in one direction or the other.

Sears Craftsman... | Answered on Oct 13, 2015

Are the sensor lights located on each side of the garage door opening? Have you checked to see if they are in alignment with each other? Also check to see that any wire from the sensors are disconnected on the motor or at the sensor itself. Good Luck! Countrycurt0

Sears Craftsman... | Answered on Oct 08, 2015

Which rail?

Sears Craftsman... | Answered on Oct 03, 2015

Not finding what you are looking for?
Sears Logo

Family Lines

5,206 questions posted

Ask a Question

Usually answered in minutes!

Top Sears Building Materials Experts


Level 3 Expert

4369 Answers

Cindy Wells

Level 3 Expert

6199 Answers

Brad Brown

Level 3 Expert

18520 Answers

Are you a Sears Building Material Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides