Cuno 111405-1 manual R M a L O P E R a T I N G S O U N D S

N O R M A L O P E R A T I N G S O U N D S

Recent improvements in refrigeration design may introduce sounds in your new refrigerator that were not noticed in earlier models. These improvements were made to create a refrigerator that will preserve food better, run more energy efficiently, and perform quieter overall. Because new refrigerator designs run quieter than past models you may start to detect sounds that were actually present in your older model but were typically masked by the refrigerator’s higher sound levels. Many of these sounds are normal. The following are some of the normal sounds your new refrigerator may make:

REFRIGERANT FLOW: The flow of the cooling fluid in your freezer area may cause gurgling or quiet knocking sounds when the refrigerator cycles on or off.

CONTROL SWITCHES: In the electronics control area there are numerous control switches that make a quiet clicking sound when you use your refrigerator or during some of the normal system operations.

ICE MAKER: The cabinet will occasionally generate a rattling sound when ice cubes are ejected into the freezer ice bin. You may also detect the motor that is ejecting that ice. These are normal sounds necessary for ice making.

WATER VALVES: You may detect a slight buzzing sound under the refrigerator when water is requested from the ice dispenser or when the ice maker needs water to make ice.

COMPRESSOR: The compressor on this unit has a variable speed motor. This variability allows the system to adjust to different usage needs. This will introduce speed change sounds and some higher pitched humming sounds that are normal for the operation of this type of compressor.

AIRFLOW SOUNDS: There are a number of fans in the refrigerator that make airflow sounds when in operation. The freezer fan circulates cool air throughout the refrigerator. The refrig- erator circulating fan helps keep that com- partment's temperature more uniform. The condenser fan on top of your refrigerator is utilized to remove the heat generated by the refrigeration system. Lastly, the Climate Zone compartments circulate air to maintain optimum temperatures.

CABINET LEVELING: An unlevel cabinet may cause rattles and vibration noises.

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