Appreciation post: my walk-in cooler died at 9pm on a Friday and the fix was a $4 part
Two Fridays back the walk-in at my place started blowing warm air right in the middle of dinner service, so I'm pulling everything into the reach-ins and trash bags full of ice while tickets keep printing. I called a guy named Sal who does refrigeration and he walked me through checking the defrost timer over the phone at 11pm, and it turned out to be a $4 relay switch I could grab at the supply house the next morning. We saved about $1,800 in product and I got home at 2am smelling like fish. Now I keep a spare relay taped inside the compressor panel, which Sal says nobody ever does. What cheap part has bailed you out of a disaster mid-service?