Thats right. Hmmmmmmmmmmmm. What causes the hum in the transfer switch? Been living with it for quite some time. Any ideas before I take the cover off & start poking around?
Lucky me, the switch is in an easily reachable place. Will open it up next time off shore power & have a look. Could be as simple as a loose screw inside I hope.
Not sure if I even need it as I have a 2000w PSW inverter/charger on the house side of the TS.
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