What to do if the stirrer motor of my Sears 721.86002010 is not working?
If the stirrer motor is not working, check the resistance. A normal stirrer motor should measure approximately 120 to 135 ohms. An abnormal stirrer motor will measure infinite resistance.
How to troubleshoot a faulty turntable motor in my Sears 721.86002010?
To troubleshoot a faulty turntable motor, check its resistance. A normal motor should measure approximately 2.0 to 3.0 Kohms. An abnormal motor will measure infinite or several ohms.
What to do if the absolute humidity sensor in my Sears Microwave hood combination is not working?
To troubleshoot the absolute humidity sensor, check the resistance between terminals. Normal resistance should be approximately: BK-RD: 6.0 Kohms, RD-WH: 3.0 Kohms, BK-WH: 3.0 Kohms. Abnormal resistance will be infinite or approximately 0 ohm.
Guidelines to avoid exposure to microwave energy during servicing, including door checks and component integrity.
Emphasizes reading the manual carefully to avoid exposure to microwave energy during servicing.
Details power consumption, output, frequency, supply, dimensions, and capacity.
Lists safety devices like thermostats, fuses, interlock switches, and key components like magnetron.
Defines switch states (Open/Closed) for different conditions in the interlock system.
Warns about high-voltage and high-current nature of the microwave oven during repair.
Highlights risks of microwave energy exposure from magnetron and improper connections.
Covers power source, location, mounting, and placement relative to interference sources.
Explains the importance of grounding for safety and proper use of the 3-prong plug.
Identifies and labels all buttons and display elements on the control panel.
Detailed explanations for each button and the dial on the control panel for operation.
Visual representation of the microwave's electrical connections and components.
Illustrates the circuit connections for the touch key board, showing button assignments.
Advises on safe usage practices, avoiding empty operation and arcing with aluminum foil.
Step-by-step guide for testing the oven's functionality after installation.
Details the incorporated safety systems and adjustable power output levels.
Highlights high voltage dangers and the need for extreme care during repairs.
Mandatory steps to prevent microwave energy leakage before and after servicing.
Lists specific damage or component issues that prevent the unit from being operated.
Essential checks after repair, including interlock, gasket, and waveguide integrity.
Advises on checking leakage before servicing and informing users about excessive levels.
Lists necessary equipment for performing microwave leakage tests.
Step-by-step guide for measuring microwave energy leakage using specific equipment and water load.
Procedure for measuring leakage around the magnetron and waveguide with the outer case off.
Procedure for measuring leakage on a fully assembled oven, focusing on door seals and vents.
Method for measuring microwave power output using a water load and specific formula.
Step-by-step guide for safely removing the control panel and circuit board.
Procedure for disconnecting the Flexible Printed Circuit (FPC) connector from its socket.
Procedure for securely connecting the FPC connector to its terminal socket.
Detailed steps for removing the outer casing, including vent grille and base plate screws.
Steps to disconnect wires, remove screws, and access door interlock switches.
Procedure for carefully removing the magnetron, noting potential damage and gasket installation.
Steps to remove the stirrer fan cover and the fan itself.
Process for detaching the door and dismantling its components like the dielectric choke.
Guidance on mounting the door assembly correctly to prevent microwave leakage.
Steps to detach the ventilation motor assembly from the oven.
Procedure for removing the glass tray, rotating ring, shaft, base plate, and motor.
Steps for removing the old humidity sensor and mounting the new one.
Description of the door lock mechanism designed to prevent microwave activity when the door is open.
Steps to adjust door latches and interlock switches to prevent microwave energy leakage.
Procedure to verify the correct sequential operation of interlock switches when the door opens and closes.
Confirms that microwave energy leakage is within specified limits after adjustments.
Checks continuity of the primary interlock switch using an ohmmeter in open and closed door states.
Checks continuity of the secondary interlock switch using an ohmmeter.
Checks continuity of the monitor switch using an ohmmeter in open and closed door states.
Procedure for measuring resistance of the HV transformer's primary, secondary, and filament windings.
Tests filament terminal and filament-to-chassis resistance for the magnetron.
Procedure for testing the HV capacitor's terminal-to-terminal and terminal-to-case resistance.
Procedure to test the HV diode for shorts, forward bias, and reverse bias using an ohmmeter and voltage readings.
Tests continuity for relays and resistance for fan and ventilation motors.
Tests resistance for turntable motor, humidity sensor, and stirrer motor.
Measures resistance of the touch key board terminals when touched and not touched.
Identifies common problems related to fuse blowing and their potential causes.
Flowcharts for diagnosing problems with fan motor or oven lamp operation related to relays.
Lists symptoms indicating a faulty circuit board, such as current issues or display malfunctions.
Diagnoses problems with the 'Set Time of Day' message not appearing.
Troubleshoots incorrect numbers or indications during programming.
Diagnoses why the countdown doesn't start when the START key is touched.
Troubleshoots cases where the oven operates but does not heat, checking fans and components.
Diagnoses why the unit does not heat during high power cooking, checking interlocks and thermostats.
Addresses problems with the buzzer not sounding or sounding continuously.
Troubleshoots the ventilation fan not operating when the VENT ON/OFF key is pressed.
Illustrates the assembly of door parts with corresponding part numbers.
Illustrates the assembly of controller parts with corresponding part numbers.
Illustrates the assembly of oven cavity parts with corresponding part numbers.
Illustrates the assembly of latch board parts with corresponding part numbers.
Illustrates the assembly of interior parts with corresponding part numbers.
Illustrates the assembly of interior parts with corresponding part numbers.
Illustrates the assembly of installation parts and accessories with corresponding part numbers.
Guidelines to avoid exposure to microwave energy during servicing, including door checks and component integrity.
Emphasizes reading the manual carefully to avoid exposure to microwave energy during servicing.
Details power consumption, output, frequency, supply, dimensions, and capacity.
Lists safety devices like thermostats, fuses, interlock switches, and key components like magnetron.
Defines switch states (Open/Closed) for different conditions in the interlock system.
Warns about high-voltage and high-current nature of the microwave oven during repair.
Highlights risks of microwave energy exposure from magnetron and improper connections.
Covers power source, location, mounting, and placement relative to interference sources.
Explains the importance of grounding for safety and proper use of the 3-prong plug.
Identifies and labels all buttons and display elements on the control panel.
Detailed explanations for each button and the dial on the control panel for operation.
Visual representation of the microwave's electrical connections and components.
Illustrates the circuit connections for the touch key board, showing button assignments.
Advises on safe usage practices, avoiding empty operation and arcing with aluminum foil.
Step-by-step guide for testing the oven's functionality after installation.
Details the incorporated safety systems and adjustable power output levels.
Highlights high voltage dangers and the need for extreme care during repairs.
Mandatory steps to prevent microwave energy leakage before and after servicing.
Lists specific damage or component issues that prevent the unit from being operated.
Essential checks after repair, including interlock, gasket, and waveguide integrity.
Advises on checking leakage before servicing and informing users about excessive levels.
Lists necessary equipment for performing microwave leakage tests.
Step-by-step guide for measuring microwave energy leakage using specific equipment and water load.
Procedure for measuring leakage around the magnetron and waveguide with the outer case off.
Procedure for measuring leakage on a fully assembled oven, focusing on door seals and vents.
Method for measuring microwave power output using a water load and specific formula.
Step-by-step guide for safely removing the control panel and circuit board.
Procedure for disconnecting the Flexible Printed Circuit (FPC) connector from its socket.
Procedure for securely connecting the FPC connector to its terminal socket.
Detailed steps for removing the outer casing, including vent grille and base plate screws.
Steps to disconnect wires, remove screws, and access door interlock switches.
Procedure for carefully removing the magnetron, noting potential damage and gasket installation.
Steps to remove the stirrer fan cover and the fan itself.
Process for detaching the door and dismantling its components like the dielectric choke.
Guidance on mounting the door assembly correctly to prevent microwave leakage.
Steps to detach the ventilation motor assembly from the oven.
Procedure for removing the glass tray, rotating ring, shaft, base plate, and motor.
Steps for removing the old humidity sensor and mounting the new one.
Description of the door lock mechanism designed to prevent microwave activity when the door is open.
Steps to adjust door latches and interlock switches to prevent microwave energy leakage.
Procedure to verify the correct sequential operation of interlock switches when the door opens and closes.
Confirms that microwave energy leakage is within specified limits after adjustments.
Checks continuity of the primary interlock switch using an ohmmeter in open and closed door states.
Checks continuity of the secondary interlock switch using an ohmmeter.
Checks continuity of the monitor switch using an ohmmeter in open and closed door states.
Procedure for measuring resistance of the HV transformer's primary, secondary, and filament windings.
Tests filament terminal and filament-to-chassis resistance for the magnetron.
Procedure for testing the HV capacitor's terminal-to-terminal and terminal-to-case resistance.
Procedure to test the HV diode for shorts, forward bias, and reverse bias using an ohmmeter and voltage readings.
Tests continuity for relays and resistance for fan and ventilation motors.
Tests resistance for turntable motor, humidity sensor, and stirrer motor.
Measures resistance of the touch key board terminals when touched and not touched.
Identifies common problems related to fuse blowing and their potential causes.
Flowcharts for diagnosing problems with fan motor or oven lamp operation related to relays.
Lists symptoms indicating a faulty circuit board, such as current issues or display malfunctions.
Diagnoses problems with the 'Set Time of Day' message not appearing.
Troubleshoots incorrect numbers or indications during programming.
Diagnoses why the countdown doesn't start when the START key is touched.
Troubleshoots cases where the oven operates but does not heat, checking fans and components.
Diagnoses why the unit does not heat during high power cooking, checking interlocks and thermostats.
Addresses problems with the buzzer not sounding or sounding continuously.
Troubleshoots the ventilation fan not operating when the VENT ON/OFF key is pressed.
Illustrates the assembly of door parts with corresponding part numbers.
Illustrates the assembly of controller parts with corresponding part numbers.
Illustrates the assembly of oven cavity parts with corresponding part numbers.
Illustrates the assembly of latch board parts with corresponding part numbers.
Illustrates the assembly of interior parts with corresponding part numbers.
Illustrates the assembly of interior parts with corresponding part numbers.
Illustrates the assembly of installation parts and accessories with corresponding part numbers.
General| Model Number | 721.86002010 |
|---|---|
| Cooking Power | 1000 Watts |
| Installation Type | Over-the-Range |
| Color | Stainless Steel |
| Type | Over-the-Range |
| Capacity | 1.6 cubic feet |
| Exhaust Fan Speed | 2-speed |
| Brand | Kenmore |
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