To troubleshoot this first check if any of the safety sensor wires have been disconnected behind your craftsman opener.
Craftsman garage door opener troubleshooting sensors.
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.
Craftsman garage door openers are trusted to do what you need them to do.
Check sensor alignment and line up the safety sensors.
Fits any craftsman garage door opener manufactured after 1997.
The door should stay open and the motor unit lights should blink.
Reconnect any loose safety sensor wires.
The sensors use two photo eye lenses that transmit an infrared beam between them.
Attempt to close the garage door using a remote.
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.
2 safety sensors easy to install mounting brackets 3 ft extension wire and connectors.
Chain rail extension kit.
Sometimes the sensor becomes faulty and needs to be replaced.
When problems arise following some basic troubleshooting steps will help diagnose the cause of the problem.
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.
This model also utilizes the assurelink connectivity feature.
Craftsman 139 30437 is a residential garage door opener.
All garage door openers use a sensor light to prevent the door from closing when an object is in its path.
Open the garage door.
Check the safety sensor s connection to the garage door opener.
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.
Craftsman 139 30437 garage door opener troubleshooting.
Prevents the garage door from closing onto people pets or objects.
This safety reversing sensor is actually a pair of.
If the sensors are not.
Each of the several models of the craftsman 1 2 hp garage door opener is operated by a chain drive.
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.
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Safety sensors include two mounted sections one on each side of the garage door opening.
Replace remote device batteries.