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.
Open the garage door.
Place a box or similar object between the safety sensors to block the sensing beam.
To troubleshoot this first check if any of the safety sensor wires have been disconnected behind your craftsman opener.
Prevents the garage door from closing onto people pets or objects.
All garage door openers use a sensor light to prevent the door from closing when an object is in its path.
Check the safety sensor s connection to the garage door opener.
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Check sensor alignment and line up the safety sensors.
Craftsman 139 30437 is a residential garage door opener.
Craftsman garage door openers are trusted to do what you need them to do.
When problems arise following some basic troubleshooting steps will help diagnose the cause of the problem.
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.
Craftsman 139 30437 garage door opener troubleshooting.
Safety sensors include two mounted sections one on each side of the garage door opening.
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.
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.
Fits any craftsman garage door opener manufactured after 1997.
Reconnect any loose safety sensor wires.
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.
This safety reversing sensor is actually a pair of.
This model also utilizes the assurelink connectivity feature.
Attempt to close the garage door using a remote.
2 safety sensors easy to install mounting brackets 3 ft extension wire and connectors.
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.
Sometimes the sensor becomes faulty and needs to be replaced.
Sears craftsman garage door openers have an important safety feature that prevents the door from closing when something or someone is in the 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.