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FAAC 455d electrical interference
I just had my control panel and actuators replaced on an existing gate. When my yard care person uses a gas powered blower on driveway at the gate, the control board gets into a problem state. 
So this situation happens when the gate is held open by a toggle switch (the inside manual opener) and he uses his blower. He doesn't touch the actual gate. Upon flipping the toggle switch to close the gate, then after time delay, one of the two sides of the gate doesn't close. It sounds like the actuator for that misbehaving gate side is working, but nothing moves; maybe actuator turning in wrong direction.
The "remedy" is to open the black cover on actuator, rotate red valve to manual operation, manually close the misbehaving gate, putting red valve back into operating position, and then  gate operates fine for a week until the yard care person uses his blower again.

Looks like electrical including equipment ground is properly connected.  

I am guessing electrical interference gets control panel into unexpected logic state.
I suppose I could put toroids on all the low voltage wires entering control panel (except sense loop).
Has anyone run into this? Anyone have any insight?     (( besides buying him a Li  battery blower))


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