Hey guys, I just bought a used coke machine that is not cooling. The compressor makes a grumbling sound like it's stating up for a few seconds then stops. It does this about every ten seconds or so. I'm leaning in the direction of a low charge but I don't want to put ports on it yet until I can eliminate any other possibility. So I decided to get some advice from the experts.
I'll get the model and serial number tomorrow.