When the Dometic or Norcold cooling unit fails it’s often in the boiler where the working fluid turns to gas, causing the tell-tale yellow residue and ammonia smell. This is almost always due to poor quality OEM or aftermarket cooling units that use thin wall tubing and are not built like Ozark refrigerators. Our unique rebuilding process uses heavy-wall seamless tubing and a boiler design that won’t fracture from thermal stress. Our top quality Dometic or Norcold rv refrigerator replacement cooling units will provide you years of trouble free service.
When setting a new cooling unit it’s important to re-seal the back of the fridge to the unit. Some of the manufacturers provide instructions that include using a putty-like material called thermal mastic to seal and secure the cooling unit to the back of the fridge and freezer section. This mastic acts as a thermal conductor and needs to be scraped off the back of the freezer and refrigerator section before resealing the fridge to the cooling unit.
Also, be sure to spray a bead of low expansion foam around the back of the refrigerator to insulate the gap where the cooling unit is set in the fridge. If you don’t do this the gap will leak air and moisture into the refrigerator and cause cooling problems. It’s best to do this when the refrigerator is laid down flat. This will allow the evaporator tube to be lower than the fridge boiler and send the fluids where they belong in the evaporator. norcold cooling units