It is a circuit protection breaker so can be left on all the time. It will trip if there is a problem with the electrics. Test occasionally and forget until it trips.
Alan
This only reference when on hook up !
If not on hook up and there's a problem with elec. a fuse will blow....
Which post are you referring to?....it does NOT work OFF hook-up ....
There is no power going thru from the lesure batts. Only 220v!
Try the test button if not on hook-up ...nothing will happen.
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