Refrigerator working intermitantly

Refrigerator & Freezer Repair
1

Whirlpool model number ET18PKXFN0
works on and off
Currently used as a kegerator. Will be very cold then stop working for a few days, then gets cold again. Has happened twice. What should i check first?

Error Code (if any):
Parts or tests already tried:
Photos / video link:

2

Hi,

Please recheck.

I found ET18PKXFN00 & ET18PKXFN01

Need to be very observant. When the refrigerator is not cooling is it running? Not running, dead quiet? Making any strange noises like a clicking?

How do you get it to work again?

jeff sr.