Repair the garage door if it doesn t travel smoothly.
Troubleshoot chamberlain whisper drive garage door.
Chamberlain garage door openers troubleshooting support.
How to troubleshoot the chamberlain garage door step 1.
Disconnect all wires from back of motor unit.
Remove sensors from brackets and shorten sensor wires to 1 2 ft 30 60 cm.
Increase the open force adjustment dial slightly.
Allow the motor to cool for about 15 minutes before restoring power and using the garage door opener.
E g if the dial is set to 1 increase it to 2.
Pull the emergency door release and check the up and down travel of the garage door for binding.
Alter the travel adjustments if the door is stopping short of the desired point on the ground.
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Whisper drive 248739 garage door opener pdf manual download.
Whisper drive security 248739.
Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products.
On chamberlain garage door openers they are usually blue.
Now open the garage door with your remote to check if it opens.
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Unplug the garage door opener to reset the logic board.
View and download chamberlain whisper drive 248739 owner s manual online.
Ensure the safety reversing sensor located right inside the garage door is connected and aligned properly if.