Operating Sounds. Maytag MQU1556AEW, AFU2067BW, MQU1554AEW, AQU1525AEW, AFU1505BW, AFU1767BW, MQU2056ARW, AFU1567BW, AFU1705BW, AFU2005BW

General Tips

Operating Sounds

Today’s freezers are designed for economical operation and energy efficiency. New features and designs may create sounds which are different. Following are normal operating sounds which may be encountered, no service call is required.

Defrost heater:*

Sizzling, hissing, or popping sounds are caused by water dropping on the defrost heater during the defrost cycle.

Temperature control:

Clicks when the compressor starts or stops.

Evaporator:

Gurgling sound, like boiling water, when refrigerent flows through the freezer cooling coil.

Defrost timer:*

Automatic timer sounds like an electric clock that snaps in and out of the defrost cycle.

Freezer fan:*

Makes a whirring noise or sounds like rushing air as cold air circulates in the freezer compartment.

Insulation:

High-efficiency foam is used for its excellent energy insulation capacity, even though it does not offer the same level of sound insulation as less energy-efficient fiberglass insulation once found in freezers.

Defrost drain pan:*

Dripping sound is defrost water falling onto drain pan.

Compressor:

Runs faster for higher efficiency and has a higher pitched hum or pulsating sound.

* Frost-free models only

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