Humming inside the TT
Not that it bothers me or keeps me awake, but what is that humming sound inside the RV when the shore electricity is plugged in?
Forum Discussion
FWIW, here is our old WFCO converter on the left (and new PD replacement on right). I spy with my little eye a small transformer and two toroidal core type transformers (or chokes). Note the larger transformer in the PD converter (and 2 fans instead of one). The WFCO failed in only it's 3rd season. Cheap junk...
