Dometic refrigerator left off for 10 mo. not working

If you have a voltmeter and are comfortable using it, you can check the voltage at the outlet. If not, yes most refrigerators have a standard 110V outlet you should be able to unplug the refrigerator and plug something reasonably light duty like a lamp or fan into it to verify it has 110V.

If it doesn't, check for tripped breakers. It may be easier to check the breakers first.