GMandJM wrote:
Rwake901 wrote:
GMandJM wrote:
Rwake901 wrote:
We have the electric vent covers and it's all the way open or all the way closed. What happens to the vent lid when the motor try's to open the lid all the way and can't because it hits these covers?
Ours are electric, too, but they stop moving when you let up on the up/down button. Yours don't do that?
Once you push the button they open all the way and won't stop until they are all the way open. I've tried repushing the button and it just reverses the lid.
I learn something new every day around here. I wonder what they would do if they ran into something (like a vent cover). Would they stop or just keep going until the motor or worm gear gave out.
Like Kiwkee step motors they run until they meet resistance. The resistance causes the motor to slow, current (amps) increases. The increase in current opens a switch and shuts off the motor. The controller senses this, know it's at its limit and cuts power to the motor.
Our vent switch works as described above.