How do I know if the boiler in my gas fridge has blocked or cracked?
If the refrigerator is run while not leveled for an extended period, the cooling unit water will not flow into the boiler. The boiler as a result gets excessively hot and can bake the rust inhibitor. This will in-turn block the small 1/4" tube in the boiler and all flow will stop. If the refrigerator is kept running under these circumstances the boiler tube will get so hot that it will crack open. If this happens a yellow powder around the burner area may be visible indicating that the cooling units rust inhibitor is leaking.