Craftsman Garage Door Opener Troubleshooting Sensors

Craftsman 139 30437 is a residential garage door opener.

Craftsman garage door opener troubleshooting sensors.

Sometimes the sensor becomes faulty and needs to be replaced. Attempt to close the garage door using a remote. 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. Place a box or similar object between the safety sensors to block the sensing beam.

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. Sears craftsman garage door openers have an important safety feature that prevents the door from closing when something or someone is in the way. Each of the several models of the craftsman 1 2 hp garage door opener is operated by a chain drive. Safety sensors include two mounted sections one on each side of the garage door opening.

Fits any craftsman garage door opener manufactured after 1997. Prevents the garage door from closing onto people pets or objects. Check the safety sensor s connection to the garage door opener. Check sensor alignment and line up the safety sensors.

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. 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. When problems arise following some basic troubleshooting steps will help diagnose the cause of the problem. 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.

Most of the features and functions on each model work in the same way. If the sensors are not. The sensors use two photo eye lenses that transmit an infrared beam between them. Chain rail extension kit.

Craftsman garage door openers are trusted to do what you need them to do. Chain rail extension kit. All garage door openers use a sensor light to prevent the door from closing when an object is in its path. To troubleshoot this first check if any of the safety sensor wires have been disconnected behind your craftsman opener.

Open the garage door. 2 safety sensors easy to install mounting brackets 3 ft extension wire and connectors. Craftsman 139 30437 garage door opener troubleshooting. The door should stay open and the motor unit lights should blink.

Shop our garage door openers and find out where you can buy yours locally or online. Reconnect any loose safety sensor wires.