Original poster: Jeff Larson <jeff@xxxxxxxxxxxxx>The big problem with the openers is the low voltage wiring with long wires to photo eyes, combination keypads, push buttons. I bet the voltage on these circuits is 24 volts or less. Inducing 100 volts on these wires is no problem with 1/2 million volt potentials near by. I disconnect all the wires from the opener and the photo eyes when I run my coil.
Jeff Tesla list wrote:
Original poster: Bert Pool <lightnin_dude@xxxxxxxxxxx>Running a separate ground to the opener frame may not help you. I killed my 2nd door opener trying this.Bert At 10:50 PM 1/16/2007 -0700, you wrote:Original poster: "M G" <gt4awd@xxxxxxxxx> If the coil is zapping the metal on the garage door the charge could probably lead back to the motor and electronics easily. One way to possibly stop this problem is by adding a grounded strike area where the coil would normally zap the garage. This