Normal operating sounds.Troubleshooting TipsInstallation InstructionsCustomer ServiceOperating InstructionsSafety Information35Depending on the placement of the refrigerator in your kitchen,you may want to place a piece of rubber backed carpet under therefrigerator to reduce noise.The new high efficiency compressor runs fasterand will have a higher pitch hum or pulsatingsound while operating.Defrost timer and refrigerator control clicks onand off.The fan circulating air inside the freezer whichkeeps the temperatures throughout.Water dropping on the defrost heater causing asizzling, hissing or popping sound during thedefrost cycle.The flow of refrigerant through the freezercooling coil sounds like boiling water or agurgling noise.Cracking or popping of cooling coils caused byexpansion and contraction during defrost andrefrigeration following defrost.Water dripping as it melts from the evaporatorand flows to the drain pan during the defrostcycle.IcemakerThe icemaker water valve will buzz when theicemaker fills with water. If the feeler arm is intheON (down) position it will buzz even if it hasnot yet been hooked up to water. Keeping thefeeler arm in theON (down) position before it ishooked up to water can damage the icemaker.To prevent this, raise the feeler arm to theSTOP(up) position. This will stop the buzzing.The sound of cubes dropping into the bin andwater running in pipes as icemaker refills.These sounds are normaland are due mostly to highlyefficient operation.