February 23, 2008 at 8:37 pm
#615836
JayDee
Participant
Dear Katydid:
Assuming you have new batteries in the one that doesn’t work (I know, but I had to say it), open the cover of the one that does work. Each of those little white switches and the three (i think) positions together form a code. Get a piece of paper and mark down the switch positions of the controller that does work. Close it back up.
Open the one that doesn’t work. Are the switches in the same position as the one that works? If so, you need a new controller. Note the brand and type of opener and you might be able to buy a replacement controller.
If the switches are in different positions, set them the same as the controller that works. Reset the cover and try it.
Good Luck – JD