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Jenn-Air JMC7000ADB User Manual

Jenn-Air JMC7000ADB
57 pages
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Jenn-Air JMC7000ADB Specifications

General IconGeneral
TypeMicrowave Oven
Power1000 Watts
Control TypeElectronic
ColorBlack
Installation TypeBuilt-In
ConvectionYes
Sensor CookingYes
Grill FunctionNo
Pre-Programmed SettingsYes
Child LockYes
Warranty1 Year Limited

Summary

Safety Precautions

Component Test Procedure

Microwave Radiation Test

Procedure for measuring microwave leakage from the oven.

Printed Circuit Board

Printed Circuit Board (Model M170)

Details on checking the printed circuit board for Model M170.

Printed Circuit Board (Models JMC7000/MMC5000)

Details on checking the printed circuit board for Models JMC7000 and MMC5000.

Parts List

General Information

Specifications (Model M170)

Technical specifications for the Maytag M170 microwave model.

Specifications (Models JMC7000/MMC5000)

Technical specifications for Maytag JMC7000 and MMC5000 microwave models.

Features Diagram (Model M170)

Features Diagram (Models JMC7000/MMC5000)

Control Panel (Models JMC7000/MMC5000)

Installation

Steady, flat location

Requirement for placing the microwave on a stable, level surface.

Leave space behind and on the side

Ensuring adequate ventilation by keeping vents clear.

Away from Radio and TV sets

Positioning the microwave away from interference sources.

Away from heating appliances and water taps

Avoiding placement near heat or moisture to prevent damage.

Power supply

Guidelines for connecting the microwave to the correct power source.

Use & Care (Model M170)

Plug power supply cord

Instruction to plug the microwave into a grounded outlet.

Place food and close door

Steps for preparing food and closing the oven door.

Door operation

How the oven light and operation are affected by door status.

Automatic cooking

Oven cooks on full power unless a lower level is set.

Display indication

What the display shows when plugged in.

Time clock reset

Time clock returns to present time when cooking ends.

Stop/Clear pad function

How to stop cooking and clear information.

START pad operation

Troubleshooting if the oven does not start.

Use & Care (Models JMC7000/MMC5000)

Door operation

How the oven light and operation are affected by door status.

Pad touch acknowledgement

Beep sound confirms pad touch.

Automatic cooking power

Oven cooks on full power unless a lower level is set.

Display indication

Display shows :0 when plugged in.

Time clock reset

Time clock returns to present time when cooking ends.

STOP/CLEAR pad function

Stops cooking and retains/erases information.

START pad operation

Checks for door closure if the oven does not start.

Controls

Child Safety Lock

Feature to prevent unwanted oven operation by children.

Stop Oven While It's Operating

Procedures for stopping and restarting the oven during operation.

Interlock Mechanism (Model M170)

Description of the door lock mechanism for safety.

Interlock Mechanism (Model M170) - Continued

D.O.M. SWITCH

Details on the D.O.M. switch movement and adjustment.

Adjustment Steps

Steps for adjusting the interlock switch assembly.

Interlock Switch Replacement

Guidelines for replacing safety interlock switches.

Interlock monitor switch

Conditions and checks for the interlock monitor switch.

Interlock Mechanism (Models JMC7000/MMC5000)

Adjustment

Steps for adjusting the interlock mechanism for models JMC7000/MMC5000.

Interlock switch operation

Description of hook and lever action on interlock switches.

Electrical

Circuit Description

Explanation of the oven's electrical circuit during cooking.

Wiring Diagram

Relay Control and Auto Defrost

Relay "1" ON-OFF Time

Chart showing relay timing for power levels.

Auto Defrost Cycle

Description of the auto defrost cycle operation.

Door opening during cooking

How the oven behaves when the door is opened during cooking.

Servicing Components

Cautions for Servicing

Warnings and precautions to observe before and during servicing.

High Voltage Capacitor Warning

Specific warning regarding electric charge in the high voltage capacitor.

Disassembly and Assembly (Model M170)

Remove cabinet

Steps to remove the microwave oven cabinet.

To remove door assembly

Procedure for removing the oven door assembly.

To remove door parts

Steps for disassembling parts of the oven door.

Door Seal Gap Adjustment

Reduce gap at part "A"

Method to reduce door seal gap at the top hinge stopper.

Reduce gap at part "B"

Method to reduce door seal gap at the lower hinge stopper.

Reduce gap at part "C"

Method to reduce door seal gap using interlock switch assembly.

Reduce gap at part "D"

Method to reduce door seal gap using top interlock switch assembly.

Component Removal (Model M170)

Remove high voltage capacitor

Procedure for removing the high voltage capacitor.

Remove magnetron

Steps to remove the magnetron component.

Component Removal (Model M170) - Continued

Remove fan motor assembly and air guide

Procedure for removing the fan motor and air guide.

Remove transformer

Steps to remove the high voltage transformer.

Replacement of Tray Motor

Instructions for replacing the tray motor.

Disassembly and Assembly (Models JMC7000/MMC5000)

Remove cabinet

Steps to remove the cabinet for JMC7000/MMC5000 models.

To remove door assembly

Procedure for removing the door assembly for JMC7000/MMC5000 models.

To remove door parts

Steps to remove parts from the door for JMC7000/MMC5000 models.

Interlock Mechanism and Adjustment (Models JMC7000/MMC5000)

Loosen screws on stopper hinge top

Adjusting hinge screws for door seal contact.

Loosen screws on upper stopper hinge

Adjusting upper hinge screws for door seal contact.

Loosen screw on interlock switch assembly (top)

Adjusting top interlock switch for hook engagement.

Loosen screw on interlock switch assembly (bottom)

Adjusting bottom interlock switch for hook engagement.

Troubleshooting

General Troubleshooting Procedures

Essential safety and handling procedures before troubleshooting.

Visual Conditions (Touch Control/Membrane Switch)

Common visual problems indicating touch control or membrane switch issues.

Membrane Keyboard Troubleshooting

Digital readout display issues

Troubleshooting when the display shows no programming or incorrect input.

Membrane Keyboard Check Procedure

Steps to check the continuity of the membrane keyboard.

Membrane Keyboard Key Check

Type of encoding and pad names

Identifies keyboard keys and their encoding matrix.

Key check procedure

Detailed steps to check key continuity with a multimeter.

Troubleshooting: Oven Does Not Operate

Fuse blows

Diagnosing issues when the 15A fuse blows.

15A fuse blows again

Troubleshooting if the fuse blows repeatedly.

Display dead, fuse ok

Diagnosing a dead display when the fuse is intact.

Troubleshooting: Oven Start Issues

Outlet has proper voltage

Checks when the outlet has voltage but the oven does not operate.

Oven does not start cooking

Diagnosing why the oven fails to start after setting program.

Troubleshooting: Cooking Performance

No microwave cooking

Diagnosing issues when the fan runs but no cooking occurs.

Microwave output power is low

Procedure to check and address low microwave output power.

Measuring Microwave Power Output (IEC-705)

Troubleshooting Guide (Models JMC7000/MMC5000)

Oven does not operate at all

Diagnosing issues when no inputs are accepted.

Outlet has proper voltage

Troubleshooting when outlet has voltage but fuse does not blow.

Display do not shown countdown

Diagnosing why the display does not show countdown.

Troubleshooting: Oven Start Issues (Models JMC7000/MMC5000)

Turn table motor, oven lamp do not turn on

Diagnosing why motors and lamp do not activate when start is pressed.

Troubleshooting: No Microwave Oscillation (Models JMC7000/MMC5000)

No microwave oscillation

Diagnosing issues when fan motor runs but no microwave oscillation occurs.

Component Test Procedure

High voltage transformer

Procedure for checking the high voltage transformer continuity.

High voltage capacitor

How to check the high voltage capacitor for continuity.

High voltage diode

Procedure for testing the high voltage diode's resistance.

Magnetron

Checks for open filament or shorted magnetron, and leakage.

Component Testing - Switches and Fuse

Fuse

Checking fuse and interlock switches when fuse blows.

Interlock Switch

Testing continuity of safety interlock and monitor switches.

Microwave Radiation Test

Printed Circuit Board (Model M170)

Circuit Check Procedure

Procedure for checking the low voltage transformer on the PCB.

Display Problems

Troubleshooting issues related to the PCB and display.

When there is no microwave cooking

Diagnosing no cooking issue related to Relay '2' on the PCB.

Printed Circuit Board Checks (Model M170) - Continued

Relay "2" operation

Checking the status of Relay '2' for oven operation.

Relay "1" operation

Checking the status of Relay '1' for oven operation.

Door open count down stop

Checking secondary interlock switch function when door is opened.

Printed Circuit Board (Models JMC7000/MMC5000)

Circuit Check Procedure

Procedure for checking terminal voltage on the PCB.

Display Problems

Troubleshooting display issues related to PCB check points.

When there is no microwave cooking

Diagnosing no cooking issue related to Relay 2 on the PCB.

Printed Circuit Board Checks (Models JMC7000/MMC5000) - Continued

Relay 2 operation

Checking the status of Relay 2 for oven operation.

Relay 1 operation

Checking the status of Relay 1 for oven operation.

Refer to Circuit Diagram

Checking secondary interlock switch stage by resistance.

Printed Circuit Board - PCB Circuit Diagram

Wiring Diagram

Parts List (Door Components)

Parts List (Control Panel Components)

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