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