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