That's the way to go at this point. The thing is 15 years old and
you say you can replace it for $125. Just based on that, I don't
think I would put more than $50 or so into fixing it. I hope you
don't have any problem returning the board. Sometimes electrical
components that have been removed from their sealed bag and installed
can be hard to return. Of course if it wasn't in a sealed bag, then
perhaps they won't know. Anyway, I think you are on the right track
now. Get a new one and put the aggravation behind you.
-Steve
At 10:00 PM 10/4/2014, Dave Cavanaugh wrote:
>This thing is driving me crazy.
>
>A couple of weeks ago after all the back-and-forth on the list, I
>had managed to convince myself that the circuit board was bad. I
>ordered a new one from Amazon and put it in; it was a perfect fit,
>and the problem did NOT go away. Ok, now I was finally convinced
>the sensors were at fault.
>
>I put the old board back in place, and pulled the sensors off their
>brackets, and taped them to a stick so they were an inch or so
>apart, and the door worked fine. So, it looked like the sensors had
>gone bad.
>I put the taped-together sensor assembly up on one of the wall studs
>and ordered a new pair of "universal" sensors from Amazon. While I
>was waiting for the new sensors to arrive, even with the sensors
>taped lens-to-lens, it wouldn't go down without holding the
>button. I figured the sensors were really, really dead.
>
>The new sensors came about a week later, I installed them in all of
>about ten minutes, and the door worked fine. Problem solved! Since
>it was working so well, I got an RMA and returned the PCB.
>
>About a week or so later, this afternoon, guess what? Same problem
>again. Door won't go down without holding the button. Sensors are
>clean and well aligned, orange and green leds on the sensor are lit,
>and the green one goes out when I interrupt the beam, but the door
>won't go down without the button being held down. I disengaged the
>door from the traveler, and it still won't go down....increased the
>setting on the "down" force pot, same problem.
>
>I think I'm going to H.D. next week end and buy a whole new GDO and
>be done with it. I'm sick of this.
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