Craftsman Garage Door Opener Troubleshooting Sensors

Each of the several models of the craftsman 1 2 hp garage door opener is operated by a chain drive.

Craftsman garage door opener troubleshooting sensors.

All garage door openers use a sensor light to prevent the door from closing when an object is in its path. Chain rail extension kit. It has a timer to close feature which allows you to set the opener to automatically move your door down after a specified period of time. Replace remote device batteries.

Craftsman 139 30437 garage door opener troubleshooting. Sears craftsman garage door openers have an important safety feature that prevents the door from closing when something or someone is in the way. Craftsman garage door openers are trusted to do what you need them to do. Prevents the garage door from closing onto people pets or objects.

Check the safety sensor s connection to the garage door opener. Shop our garage door openers and find out where you can buy yours locally or online. Sometimes the sensor becomes faulty and needs to be replaced. If the garage door opener lights blink indicating an obstruction is blocking the safety beam even when no object is present the safety sensors may be misaligned or disconnected.

Check sensor alignment and line up the safety sensors. 2 safety sensors easy to install mounting brackets 3 ft extension wire and connectors. If your craftsman garage door opener fails to close the door properly you may need to disable the sensor light temporarily until you can replace the sensors. The sensors use two photo eye lenses that transmit an infrared beam between them.

To troubleshoot this first check if any of the safety sensor wires have been disconnected behind your craftsman opener. This model also utilizes the assurelink connectivity feature. Chain rail extension kit. If the sensors are not.

Disabling the sensor light on a craftsman garage door opener is only temporary and will render the remote controls useless until you reconnect the sensors. Most of the features and functions on each model work in the same way. If the diagnostic led on your craftsman garage door opener blinked two times then it means the safety sensor is disconnected from the garage door opener. When problems arise following some basic troubleshooting steps will help diagnose the cause of the problem.

The door should stay open and the motor unit lights should blink. Place a box or similar object between the safety sensors to block the sensing beam. Safety sensors include two mounted sections one on each side of the garage door opening. Reconnect any loose safety sensor wires.

Craftsman 139 30437 is a residential garage door opener. Fits any craftsman garage door opener manufactured after 1997.