Question about Building Materials
Many openers have a type of load limit such that if it meets resistance, it will reverse. Some have an adjustment on the opener somewhere that you can change how much resistance it takes to reverse.
Also, your spring tension may be too high. If you disconnect the door from the opener, there should be enough spring tension to allow for easy raising AND lowering of the door - if it's not balanced correctly, you can have the problem you described.
Posted on Nov 11, 2014
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Posted on Jan 02, 2017
SOURCE: Sears Garage Door Opener Problem
The problem lies in the RPM sensor, most likely due to the interrupter cup assembly. The interrupter cup assembly is the black cap that runs through the RPM sensor. You may have forgotten to re-attach this piece or it is probably moving too far out when the garage sets in motion. To fix this, remove the cup assembly, unscrew the two screws on the top metal piece with a 1/8 allen wrench, push the metal piece as far in as possible and put the screws back on. This will give more room for the cup assembly to spin and be read by the RPM sensor. Hope this helps!
Posted on Mar 12, 2008
is bulb on motor flashing 10 times. then you have electric eye problem. otherwise, sounds like you need to increase down force a hair. adjustement is on logic board, right knob.
Posted on Jan 15, 2009
First unplug the unit for about 5 min. to reset the circuit board. while you are waiting use an ohm heter or multi tester to see is the limit switch works.
If the switch tests good and resetting doesn't help you probably need a new board.
Be sure to also get a suge protector to help save the system in the future.
Hope this helps
Posted on May 29, 2010
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