Whirlpool 721.663398 manual Relay, Power, Level, FAN Motor, Turntable, Sensor

Page 22

COMPONENTS

TEST PROCEDURE

 

RESULTS

 

RELAY 2

Check for continuity of relay 2 with an ohm-

POWER

 

 

 

meter.

 

 

 

LEVEL

 

 

 

(Remove wire leads from relay 2 and operate

 

 

 

 

 

 

 

the unit.)

1

4 sec

18 sec

 

 

 

 

2

6 sec

16 sec

 

 

3

8 sec

14 sec

 

 

4

10 sec

12 sec

 

 

5

12 sec

10 sec

 

 

6

14 sec

8 sec

 

 

7

16 sec

6 sec

 

Relay 2

8

18 sec

4 sec

 

9

20 sec

2 sec

 

 

10

22 sec

0 sec

FAN MOTOR

Measure the resistance.

Normal:

 

 

(Wire leads removed)

(Ohm-meter scale: R x 1)

A: Approx. 85 ~ 100 ohm.

 

 

 

B: Approx. 10 ~ 25 ohm.

 

 

B

Abnormal: Infinite or several

 

 

 

 

 

A

 

ohm.

 

 

 

 

 

TURNTABLE

Measure the resistance.

Normal: Approx.100~150 ohm

MOTOR

(Ohm-meter scale: R x 1)

(Wire leads removed)

 

Abnormal: Infinite or several

 

 

 

 

ohm.

 

SENSOR

1) Disconnect sensor connector from micom

Normal: Approximately

 

computer board.

 

 

2) Measure resistance terminal to terminal

BK - RD: 5.2 Kohm

 

RD - WH: 2.1 Kohm

 

(ohm meter scale: R X 1000)

 

BK - WH: 2.1 Kohm

 

 

 

 

 

 

 

 

 

 

 

 

Abnormal: Infinite or several.

 

 

 

 

 

 

* Sensor cooking condition

 

 

 

 

 

 

1. Oven should be plugged in at least

 

 

 

 

 

 

5 minutes before sensor cooking.

 

 

 

 

 

 

2. Room temperature should not

 

 

 

 

 

 

exceed 95°F .

 

 

 

 

 

BK

3. Be sure the exterior of the cooking

 

1

 

 

 

container and the interior of the oven

 

 

 

 

RD

 

2

 

 

 

are dry. Wipe each off with paper

 

 

 

 

WH

 

3

 

 

 

towel.

 

 

 

 

 

 

 

 

 

 

 

4. The oven will not generate

 

 

 

 

 

 

microwave energy for the first 28

 

 

 

 

 

 

seconds of the sensor cooking cycle.

NOTE : • A MICROWAVE LEAKAGE TEST MUST ALWAYS BE PERFORMED

 

WHEN THE UNIT IS

SERVICED FOR ANY REASON.

 

MAKE SURE THE WIRE LEADS ARE IN THE CORRECT POSITION.

WHEN REMOVING THE WIRE LEADS FROM THE PARTS, BE SURE TO GRASP THE CONNECTOR, NOT THE WIRES.

-21-

Image 22
Contents Division Basic Field Manual For Microwave Oven Page Foreword Adjust the Latch and Switch Closing Adjustment ProceduresCheck the Door Latch and Switch Closing Test the Latch and Switch SequenceLatch Latch Board General Precautions in USE Precautions on InstallationFeatures and Specifications Trial OperationSpecifications Switch TableSchematic Diagram Overall Circuit Diagram Matrix Circuit for Touch KEY Board Operating Procedures A. Oven Control Panel Easy USE Table Measurement with the Outer Case Removed Procedure for Measuring Microwave Energy LeakageMeasuring Microwave Energy Leakage EquipmentMeasurement with a Fully Assembled Oven Power Output MeasurementRecord Keeping and Notification After Measurement Disassembly Instructions Important NotesDoor Assembly / Removal Magnetron Removal High Voltage Transformer Removal Removing Sensor FAN Motor Assembly / RemovalHigh Voltage Capacitor and Diode Removal Interlock System Interlock MechanismMonitor Switch Test Primary Interlock Switch TestSecondary Interlock Switch Test Components Test Procedure ResultsFilament Winding Primary Terminal Test and Checkout PROCEDURES, and TroubleshootingTest Procedures Components MagnetronCapacitor High VoltageDiode Level PowerRelay FAN MotorCheckout Procedures for Fuse Blowing Checkout ProceduresProblems Causes Problem B Checkout Procedures for RelayProblem a YES GoodPage Trouble Shooting Condition Cause RemedyCheck 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.