All I did when mine had this problem is to wrap each wire entering the
opener around a ferrite core a few times. That included the power cord,
the wires to the switches, etc. I think there were 3 cores: one for the
power cord, one for the switch wires, and one the light light sensor.
Generally, all the wires which run together can go through a single
core. No capacitors were necessary. All but the power cord a small
enough you can get a lot of turns on a small split core.
73,
Scott K9MA
--
Scott K9MA
[email protected]
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