As others have said,
turn off EVERYTHING else except including the fridge
and use step down cord adapters to get to the correct plug type..
I carry a 50 female to 30 male and a 30 female to 15 male for all occasions
At the storage area I have a heavy duty 15 amp cord from the wall to a 15 female to 50 amp female adapter
and at home I have two 50 amp extension cords (since I have to go from the street to our 90 foot setback) AND 2 30 amp extensions to my 15 amp adapter
turn on just the fridge and you should be good...