Originally Posted by lefaivre
It is my understanding that the problem is not one of a stripped gear but rather one of sensor pressure. Apparently the motor require a certain amount of back pressure in order to shut off ... this is not taking place.
There is no pressure sensor, per se...... That is, no physical switch as you might expect..... When the step reaches the end of it's travel, the motor stalls out.
The controller senses the resulting high current draw (because of the stalled motor) and shuts off the power to the motor.
Previously, my controller module was replaced and that didn't help in the slightest.
That's how it was explained to me anyhow..... Why the cheap NADA replacement motor has the delay between open/closing cycles, I have no idea.