How to Troubleshoot a Sears Model 139.655000 Garage Door Opener

The Sears model 139.

The transmitter uses a 9-volt battery that may need to be replaced.The transmitter uses a 9-volt battery that may need to be replaced.
655000 garage door opener is built to stand up to regular use without failure. If problems occur, performing troubleshooting steps can help identify the source of the issue.

Check the garage door to ensure no locks or bolts are preventing the door from opening.

Make sure any wall switch that supplies power to the opener is in the "On" position.

Allow the unit several minutes to cool if it has been used numerous times in succession. If the unit overheats, it will trip an overload switch that resets itself.

Press the reset button on the back of the opener chassis.

Inspect the lock switch. Move the switch to the "Off" position, away from the label that says "Lock."

Make sure there is nothing obstructing the path of the door if it will not completely close.

Replace the battery in the transmitter if it is failing to control the opener. Slide the battery cover off to access the battery.

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David Clair began writing for websites in 2001, creating online marketing content for business owners. He has written for Internet companies including eBay and creates training materials for an online education company. Clair is studying technical writing and pursuing an Associate of Arts in information technology from the University of Phoenix.