Whirlpool 721.663398 manual

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(3)CHECKOUT PROCEDURES FOR CIRCUIT BOARD The following symptoms indicate a defective circuit board.

(1)The start function fails to operate but the high voltage Systems, the interlock switches, the door sensing and the relay check good.

(2)The unit with a normal relay continuously operates.

(3)The buzzer does not sound or continues to sound.

(4)Some segments of one or more digits do not light up, or they continue to light up, or segments light when they should not.

(6)Wrong figures appear.

(7)The figures of all digits flicker.

(8)Some of the indicators do no light up.

(9)The clock does not keep time properly.

NOTE: A MICROWAVE ENERGY LEAKAGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FOR ANY REASON.

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Contents Division Basic Field Manual For Microwave Oven Page Foreword Check the Door Latch and Switch Closing Adjustment ProceduresAdjust the Latch and Switch Closing Test the Latch and Switch SequenceLatch Latch Board Features and Specifications Precautions on InstallationGeneral Precautions in USE Trial OperationSwitch Table SpecificationsSchematic Diagram Overall Circuit Diagram Matrix Circuit for Touch KEY Board Operating Procedures A. Oven Control Panel Easy USE Table Measuring Microwave Energy Leakage Procedure for Measuring Microwave Energy LeakageMeasurement with the Outer Case Removed EquipmentMeasurement with a Fully Assembled Oven Power Output MeasurementRecord Keeping and Notification After Measurement Important Notes Disassembly InstructionsDoor Assembly / Removal Magnetron Removal High Voltage Transformer Removal Removing Sensor FAN Motor Assembly / RemovalHigh Voltage Capacitor and Diode Removal Interlock Mechanism Interlock SystemSecondary Interlock Switch Test Primary Interlock Switch TestMonitor Switch Test Components Test Procedure ResultsTest Procedures Components Test and Checkout PROCEDURES, and TroubleshootingFilament Winding Primary Terminal MagnetronCapacitor High VoltageDiode Relay PowerLevel FAN MotorCheckout Procedures for Fuse Blowing Checkout ProceduresProblems Causes Problem a Checkout Procedures for RelayProblem B YES GoodPage Condition Cause Remedy Trouble ShootingCheck ConditionResult Fuse blows Cause Remedy Condition Check ResultCondition Check Result Cause Remedy Check Result Exploded View Door Parts Controller Parts Oven Cavity Parts Latch Board Parts Interior Parts Base Plate Parts Sensor Parts No MFL30502909

721.663398 specifications

The Whirlpool 721.663398 is a versatile refrigerator designed to meet the demands of modern households while providing exceptional performance and energy efficiency. With its sleek design and innovative features, this model stands out in the realm of home appliances, offering both style and functionality.

One of the standout features of the Whirlpool 721.663398 is its spacious interior, which provides ample room for storing groceries and other food items. The refrigerator is designed with adjustable shelves that can be easily configured to accommodate various types of food and beverages, making it a practical choice for families of all sizes. Additionally, the inclusion of door bins adds to the organization, allowing for easy access to smaller items like condiments and snacks.

The refrigerator utilizes advanced cooling technology to maintain optimal temperature levels, ensuring that food remains fresh for longer periods. The adaptive cooling system responds dynamically to fluctuations in temperature, providing consistent cooling performance. This technology not only preserves food quality but also enhances energy efficiency, helping homeowners save on utility bills.

Another impressive characteristic of the Whirlpool 721.663398 is its energy-efficient design. This model is ENERGY STAR certified, meaning it meets strict energy efficiency guidelines set by the U.S. Environmental Protection Agency. Homeowners can enjoy peace of mind knowing that they are reducing their environmental footprint while benefiting from lower energy costs.

In terms of convenience, the Whirlpool 721.663398 features a modern ice maker that provides on-demand ice production, perfect for hosting gatherings or simply keeping drinks cool during hot summer days. The exterior water dispenser offers easy access to clean and filtered water, promoting hydration without the need for bottled alternatives.

The refrigerator is also designed with a user-friendly digital control panel that allows for easy temperature adjustments and settings. This intuitive interface makes managing the appliance straightforward, even for those who might not be tech-savvy.

Overall, the Whirlpool 721.663398 combines style, functionality, and energy efficiency into one cohesive appliance. Its spacious interior, advanced cooling technology, and convenient features make it an excellent choice for those seeking a reliable refrigerator that caters to the needs of modern living. Whether you're stocking up for a large family or hosting social gatherings, this refrigerator is well-equipped to handle it all.