We have a OEM Adler/Barbour Cold Machine installed on our 1997 C 36. The condenser/compressor sits in a shelf in a locker. Under the shelf is a coil of tubing coming from the condenser/compressor unit and going the icebox. This coil forms a large block of ice as the unit runs for more then a day. This as it gets larger the ice then melts and get everything in the locker wet. My Questions are: What can I do to stop this? Is this because the system has too much or too little refrigerant or presser? Can I use canned foam to insulate the coil? Thanks Rich