Kenmore 721.805924, 721.805944, 721.805934 Interlock Continuity Test, Components Test Procedure

Page 26

INTERLOCK CONTINUITY TEST

A. PRIMARY INTERLOCK SWITCH TEST

When the door is opened slowly, an audible click should be heard at the same time or successively at intervals and the latches should activate the switches with an audible click.

If the latches do not activate the switches when the door is closed, the switches should be a adjusted in accordance with the adjustment procedure. Disconnect the wire lead from the primary switch. Connect the ohmmeter leads to the common (COM) and normally open (NO) terminal of the switch. The meter should indicate an open circuit in the door open condition.

When the door is closed, the meter should indicate a closed circuit.

When the primary switch operation is abnormal, make the necessary adjustment or replace the switch only with the same type of switch.

B. SECONDARY INTERLOCK SWITCH TEST

Disconnect the wire lead from the secondary switch.

Connect the ohmmeter leads to the common (COM) and normally open (NO) terminals of the switch. The meter should indicate a open circuit in the door open condition. When the door is closed, meter should indicate an closed circuit. When the secondary switch operation is abnormal, make the necessary adjustment or replace the switch only with the same type of switch.

C. MONITOR SWITCH TEST

Disconnect the wire lead from the monitor switch. Connect the ohmmeter leads to the common (COM) and normally closed (NC) terminals of the switch. The meter should indicate closed circuit in the door open condition. When the door is closed, meter should indicate an open circuit. When the monitor switch operation is abnormal, replace with the same type of switch.

NOTE: After repairing the door or the interlock system, it is necessary to do this continuity test before operating the oven.

COMPONENTS

 

TEST PROCEDURE

RESULTS

 

SWITCHES

Check for continuity of the

 

Door

Door

(Wire leads removed)

switch with an Ohm-meter

 

open

closed

 

Primary

COM

NO

 

 

 

Switch

 

 

 

 

 

 

 

 

 

Monitor

 

NC

 

 

 

COM

 

 

 

 

Switch

 

 

 

 

 

 

 

 

 

Secondary

 

NO

 

 

 

Switch

COM

 

 

 

 

 

 

 

 

 

 

 

 

NOTE: After checking for the continuity of switches, make sure that they are

 

connected correctly.

 

 

 

WARNING : FOR CONTINUED PROTECTION AGAINST EXCESSIVE RADIATION EMISSION, REPLACE ONLY WITH IDENTICAL REPLACEMENT PARTS.

TYPE NO. SZM-V16-FA-63 OR VP-533A-OF OR V-5230Q FOR PRIMARY SWITCH TYPE NO. SZM-V16-FA-62 OR VP-532A-OF OR V-5220Q FOR MONITOR SWITCH TYPE NO. SZM-V16-FA-63 OR VP-533A-OF OR V-5230Q FOR SECONDARY SWITCH

7-14

Page 25 Page 27
Image 26
Page 25 Page 27
Contents Division Basic Field Manual For Microwave Oven Page Table of Contents Specifications Microwave Radiation Installations Precautions on InstallationOperating Instructions Control PanelControl Panel Instructions StartOverall Circuit Diagram Schematic Diagram II *Check the Model No. ADD Noise filter Matrix Circuit for Touch KEY Board Features and Specifications Features General Information for ServiceGeneral Precautions in USE Trial OperationPreliminary Service InformationPrecautions and Repair Service Tips Microwave Leakage Test EquipmentPower Output Measurement Measurement with the Outer Case RemovedDisassembly Instructions Important NotesHOW to Remove the F.P.C. Connector HOW to Insert the F.P.C. ConnectorRemoving the OUT CASEFigure Removing the Door Interlock Switches Figures 9,10 Removing Magnetron Removing Door Figure Assembling Door Removing the Ventilation FAN AssyRemoving the Turntable Motor Interlock System Interlock MechanismTest the Latch and Switch Sequence Components Test Procedure Interlock Continuity TestTest and Checkout Precedures and Troubleshooting Test ProceduresComponents Test Procedures Results Matrix Circuit for FPC Connector Checkout Procedures Power LevelCheckout Procedures for Relay Problem a Checkout Procedures for Circuit Board Trouble Shooting Thermostat Problem D No buzzing when touching the key, between Fuse Exploded View Door PartsController Parts Oven Cavity Parts Latch Board Parts Interior Parts Interior Parts II Model 721.80592402 721.80599402 721.80594402 Installation Parts No 3828W5S5158

721.626444, 721.805994, 721.626494, 721.626424, 721.626434 specifications

The Kenmore 721 series, comprising the models 721.805944, 721.805934, 721.805924, 721.626434, and 721.626424, is renowned for its innovative features and reliable performance in the world of microwave ovens. These models reflect Kenmore's commitment to blending efficiency with modern technology.

One of the standout features of the Kenmore 721 series is their Sensor Cooking technology. This advanced system senses the moisture released from food, adjusting cooking time and power levels automatically for optimal results. This ensures that every meal is cooked to perfection, eliminating the guesswork often associated with microwave cooking.

The 721.805944 and 721.805934 models boast a generous capacity, making them ideal for families or for those who enjoy entertaining. The spacious interior allows users to easily cook large dishes or multiple items at once. The turntable function also ensures even heating for all food types, providing consistent results every time.

Additionally, the series incorporates various power levels, allowing for versatility in cooking. Whether you're defrosting, reheating, or cooking, these microwaves can handle various tasks with ease. The included presets for popular foods streamline the cooking process, offering convenience at the touch of a button.

The Kenmore 721 series also prioritizes user-friendly interfaces with digital displays and intuitive controls. This makes navigating through settings simple, even for those less familiar with technology. Moreover, a child lock feature enhances safety in households with young kids, giving parents peace of mind while cooking.

In terms of aesthetics, these microwaves feature a sleek design that can fit seamlessly into any kitchen décor. The stainless-steel finish not only adds a modern touch but is also resistant to stains and easy to clean.

Energy efficiency is another key characteristic of the Kenmore 721 series. These models are designed to use less power while delivering high-performance cooking results, making them an environmentally friendly choice for mindful consumers.

With their combination of innovative technology, user-friendly features, and reliable performance, the Kenmore 721.805944, 721.805934, 721.805924, 721.626434, and 721.626424 models stand out as excellent choices for anyone seeking a versatile and efficient microwave solution in today’s fast-paced kitchen environments.
Top Page Image Contents