Question about liftmaster Chamberlain Garage Door Opener Transmitter 300MC

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When i hit the remote the door opens about 8 inches, then stops. If I unplug the control box for a while, then plug it in it will work for a few times then the same problem occurs.

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The motor seems to be overloading Something must be binding. The motor overload seems to be opening up and shutting down the opener. Once it cools down, the overload closes and the motor will run again.

Posted on Jan 16, 2011

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Posted on Jan 02, 2017

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Whirlpool quiet partners II normal light flashing


CHECKING KEYPAD OPERATION
A rapidly blinking LED over one of the keys of the keypad (or sometimes a "dead" keypad/console)
To determine if the control or keypad is faulty, do the following test:
1. Unplug dishwasher or disconnect power.
2. Open the dishwasher door.
3. Open console and disconnect the keypad ribbon connection from the control (at P1).
Make sure all other connections are made.
4. Put console back together. Do not close the dishwasher door.
5. Plug in dishwasher or reconnect power.
6. Wait 5 seconds.
7. Close dishwasher door.
8. Monitor the control's response:
If the control is OK (no longer sees shorts with the keypad unplugged),
it will respond by turning on a Drain Motor for 2 minutes.
Check and/or replace the keypad if the control responds OK.
If the control is not OK (still sees shorts with the keypad unplugged),
then the drain motor will NOT respond and will remain off.
If no response, replace the control.

Dec 18, 2013 | KitchenAid 24 in. KUDI02IR Built-in...

1 Answer

Garage door only raises about two inches then stops.


Check the door springs and also remove the cover from the motor unit and check the drive gear. The door spring could be broken or the drive gear may be stripped.

The sensors only work when the door is closing.

Jun 15, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

No startup


For my FTR9965, it is necessary to physically unplug the
power cord from the box before you are able to enter the service codes. The sequence is:

1. Unplug the box for a few seconds.

2. Plug it in again.

3. Turn on the box with the front panel power switch. Wait for the green light to come on.

4. From the remote, quickly enter 062596 plus the info key.

5. A message comes on the monitor warning you that you could really screw things up if you don't know what you're doing, and do you really want to continue? If yes, hit any button on the remote. You only have a few seconds to respond.

6. The "stand alone" option is near the end of the "service" menu list. When you find it, change the "no" to "yes".

7. Go back to the main SAM menu, scroll down to "Store", and hit OK. I'm assuming this makes the "yes" selection permanent.

8. Enter "00" to exit SAM.

Aug 08, 2007 | Philips E-Box FTR9965 DTV Receiver

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