The refrigerant in an Absorption fridge is basically ammonia and hydrogen, with some sodium chromate added to help prevent corrosion. It is under high pressure and runs at extremely hot temperatures when in use - around 350 degrees. If you smell ammonia, the cooling unit is leaking it's refrigerant. Likewise, if you see a yellow powder, it's the sodium chromate that leaked out with the ammonia. If you smell or see either one, the cooling unit is already a goner.
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Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
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