Cavalier C5-215 Running all the time and LOUD!!!

[SB3]

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

[Camel24hrs]

Check your evaporator fan motor and make sure it is running.  If it is not running the evaporator will be frosted over in a short time.  Also your box will never cool down.

[johnieG]

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!)

[MoonDawg]

  about 3 minutes after I unplugged it something sounded like it dropped on the inside of the unit.

        If this noise is inside the compressor, I'm thinking of a broken wrist pin........or something else real bad like that