Maytag MTB1954MEB User Guide - Page 14
Normal Operating Sounds
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NORMAL OPERATING SOUNDS Improvements in refrigeration design may produce sounds in your new refrigerator that are different or were not present in an older model. These improvements were made to create a refrigerator that is better at preserving food, is more energy efficient, and is quieter overall. Because new units run quieter, sounds may be detected that were present in older units, but were masked by higher sound levels. Many of these sounds are normal. Please note that the surfaces adjacent to a refrigerator, such as hard walls, floors and cabinetry may make these sounds seem even louder. The following are some of the normal sounds that may be noticed in a new refrigerator. DEFROST TIMER: Frost-free refrigerators have a defrost timer that will generate a clicking sound when it cycles the unit into and out of defrost cycle. ICE MAKER: (if equipped) The ice maker will occasionally generate a rattling sound when the ice cubes are ready to drop down into the ice bin. Also, the motor that ejects the ice from its tray prior to dropping the ice may also be detectable. These are normal sounds necessary for making ice. FREEZER COMPARTMENT CONTRACTION AND EXPANSION: A popping sound may occur in the freezer when the unit starts up due to contraction or expansion of the materials in the freezer area. REFRIGERANT FLOW: The flow of the refrigerant in your refrigerator may cause a gurgling or rattling sound when the unit is running or just after the unit cycles off. The refrigerant is still flowing in the tubing. AIRFLOW SOUNDS: Both the freezer evaporator fan and the condenser fan at the bottom of the cabinet will create airflow sounds. The evaporator fan is circulating the cold air throughout the refrigerator and freezer compartments. The condenser fan is removing the heat generated when the unit is cooled. COMPRESSOR: In order for a new refrigerator to run more efficiently, the refrigeration system may run longer to keep food at the desired temperatures for freshness. That new, high efficiency compressor may run longer and generate sounds such as a higher pitched hum or pulsation. 13 WATER VALVE (if equipped): A buzzing sound may be detected in the back of the unit when the ice dispenser calls for the water valve to open to fill the ice maker tray. Following the ejection of the ice, there may be some water dripping sounds when the trays are being filled. CABINET LEVELING: An unlevel cabinet may cause rattling or vibrating noises. This can be fixed by adjusting the wheels or levelers properly.