Welcome to iRV2.
Sorry your here with problems.
A couple of questions that may help others provide answers.
What year is your coach ?
Is the surge protector a factory install , or something you've added?
Make and model may help if it's an add on.
Your fridge requires 12 volts to operate , even when your plugged into shore power , you haven't turned the coach battery disconnect off by mistake , have you ?