I may be able to help you with this. However, it’s difficult to put a visual on your situation. So, from your description, it sounds like the basement is the more favorable environment for the equipment. This is because the basement is much cooler than the garage. Is there any way you can better ventilate the garage? It sounds like the the garage might be far too warm for the condenser to properly cool the refrigerant.
Well, there are two fridges right next to each other and one is pumping out cold beer and the other is pumping out less-cold beer. The one pumping out the warmer beer looks like it lost its seal on the door and some frost built up. What I did was just unplug the fridge overnight. I went out there first thing this morning and there was some water on the floor and I just plugged it back in. I did wonder how the fridges would perform in the warm garage but then I realized that many, many people have fridges in their garages all year long without issue. I'll check later today or tomorrow to see if it worked. Thanks for the reply.
“…some frost is building up.” That part is concerning. If these two refrigerators are intended for
cooling only — and
not freezing — than there should not be any frost at any time unless there is an issue with the refrigerant or the refrigeration circuit or a control issue. All, of which, are issues that would require on-site troubleshooting by a trained technician.
My suggestion is to go ahead and do what’s necessary to fix the seal. That should be easy enough and is necessary for proper machine efficiency. Then, if the problem persists, I would call in a technician. This person will put gauges on the machine to determine the pressures and make adjustments and corrections accordingly.
I hope this information helps. Good luck!