Rust is the enemy. This sentence does not sound that bad, does it? At least, not until you open the door on your rv refrigerator and are greeted with an almost overwhelming ammonia smell. Why does this happen? Well, this is fairly simple...the evaporator on your cooling unit has rusted out.
The evaporator on a cooling unit is encased in a polystyrene foam block to insulate it from the heat generated by the refrigerator. Without this insulation, the evaporator would be exposed to this heat and the refrigerator would not work.
The problem is that the evaporator generates ice on the surface of the tubes when the refrigerator is running. When you turn the refrigerator off, the water has no place to go...it cannot fully drain or dry due to the foam, so it forms rust on the surface of the evaporator tubing. The tubing deteriorates from the rust until a hole forms. This why you smell ammonia inside your refrigerator.
To combat this, World Class RV Refrigeration does two things. First, we manufacture our evaporator assemblies using thicker tubing than original equipment manufacturers. Next we apply a galvanized coating to the outer surface of the evaporator assembly on our cooling units at no additional cost to you.
All of this adds up to make a replacement cooling unit from World Class RV Refrigeration a better value for our customer.
