[Little]

On the driver side rear where the 50 amp cord goes into the transfer switch (I assume) there is a relay similar to the heater relays etc.  A 110 plug is wired into this as well as  two 3 wire cords going back into the interior. A converter/charger is plugged into the 110. Any ideas as the what this relay does?? No 110 at the plug and the charger has been decommissioned at some point. Relay appears to be closed when powered up.

I got here because the power goes on/off when gen running, ok with shore and inverter.??

The transfer switch is humming a bit louder than I remember as well.

As usual thanks in advance, Mark