Donald R La Verne , CA September 16, 2021 Appliance: Amana Refrigerator ARB2259CB Amana Refrigerator Arb2259cb / Parb2259cb0: Snow in the freezer. How to replace Defrost Thermostat Kit. Ordered the defrost thermostat kit along with the defrost heater. Watched both videos and it was exactly what was said. The hardest part was putting back the clips back onto the coils. So far so good, no snow. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours