Question about Chamberlain Powerdrive PD422D 1/2 HP Security Plus Screw Drive Garage Door Opener

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Chamberlain whisper drive,door open by itself,Yellow light on

I have a whisper drive recently to find the door wide open by itself.Yellow light is on right sensor and green on another.

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Posted on Jan 02, 2017

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whirlwindsys
  • 18 Answers

SOURCE: Chamberlain Whisper garage door system that only closes 3/4...

One sensor should always be yellow, the other should be SOLID green.
If the lights are not consistently SOLID, you have a sensor issue.
TEST: If the door closes completely by pressing and holding down the wall pad button, you have a sensor problem.

Check to make sure the are aimed properly at each other.
Check the wire at the sensor and more importantly at the machine (If the wires are loose at the machine (terminals) it can cause this problem. Remember the machine does shake a lot.
If the wires are good, the sensors are aimed correctly, you have a sensor issue and need to loacte a replacement set.

Posted on Feb 20, 2009

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  • 398 Answers

SOURCE: Chamberlain Whisper garage door closes 3/4 then pops open

check the wiring if its ok you need new sensors

Posted on Feb 26, 2009

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LUBE THE SPRINGS AND ROLLERS WITH WD40.

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IF THE SENSORS STAY LIT AND THE DOOR STILL REVERSES AFTER LUBE. ADJUST THE DOWN SENSITIVITY ABOUT 1/8 TURN AT A TIME (LESS SENSITIVE) ID YOU HAVE TO ADJUST THE SENSITIVITY MORE THAN 3/4 YOU WILL NEED TO CALL A PRO OUT TO CHECK THE PROBLEM.

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Chamberlain Whisper garage door system that only closes 3/4...


One sensor should always be yellow, the other should be SOLID green.
If the lights are not consistently SOLID, you have a sensor issue.
TEST: If the door closes completely by pressing and holding down the wall pad button, you have a sensor problem.

Check to make sure the are aimed properly at each other.
Check the wire at the sensor and more importantly at the machine (If the wires are loose at the machine (terminals) it can cause this problem. Remember the machine does shake a lot.
If the wires are good, the sensors are aimed correctly, you have a sensor issue and need to loacte a replacement set.

Feb 17, 2009 | Chamberlain Powerdrive PD422D 1/2 HP...

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