I just bought a Cavalier C5 "Dr Pepper" machine for my patio outside and I had a couple of general questions. The compressor NEVER shuts off. From what I am reading that might be a problem. It cools fine "NOT ICE COLD" but like I said the compressor does not turn off. The more annoying issue is the noise from the unit. When I first plug it in it runs pretty noise free for 30 minutes or so but the noise levels gradually increases over an hour or two. I tried troubleshooting the issue and I unplugged the unit and about 3 minutes after I unplugged it something sounded like it dropped on the inside of the unit. Like ICE hitting metal. It does this everytime I unplug it. I don't know what the "increasing noise" problem is but I can describe the sound as a fan blade rubbing against metal. It is not the fan below it sounds like the fan inside the unit. (Evaporator??) Any help would be great.

Sean

or another common cause of evap' noise is an old  busted piece of a soda bottle smacking against the fan blades, ( I've found plenty in my machines!)