I have a�Sandwich prep cooler problem,the problem is it doesn’t cool lower than about 50.I bought it at an auction.I hear the compressor running I have turned the�dial�all the way cold.but thats the best i can get.the closest repair place would be 100 miles away.so I’d like fix or�eliminate�what isn’t the problem first I am handy.and this is a TRUE brand.any check this ideas?

I also have a True prep center also.
Mine has 2 fans in the upper compartment.
One went out. Would only cool To 50 degrees.
Clean coils are always a must.
Make sure fan(s) working.
That is easy to D.I.Y.