Electrolux FMV156DBE service manual High Voltage Capacitor Test, Cavity Thermal CUT-OUT Test

Page 16

FMV156DBE

FMV156DSE

FMV156DQE

FMV156DCF

TEST PROCEDURES

PROCEDURE

COMPONENT TEST

LETTER

 

 

(HIGH VOLTAGES ARE PRESENT AT THE HIGH VOLTAGE TERMINAL, SO DO NOT ATTEMPT TO

 

MEASURE THE FILAMENT AND HIGH VOLTAGE.)

CHIGH VOLTAGE RECTIFIER TEST

1.Disconnect the power supply cord, and then remove outer case.

2.Open the door and block it open.

3.Discharge high voltage capacitor.

4.Isolate the rectifier from the circuit. Using the highest ohm scale of the meter, read the resistance across the terminals and observe, reverse the leads to the rectifier terminals and observe meter reading. If a short is indicated in both directions, or if an infinite resistance is read in both directions, the rectifier is probably defective and should be replaced.

5.Reconnect all leads removed from components during testing.

6.Reinstall the outer case (cabinet).

7.Reconnect the power supply cord after the outer case is installed.

8.Run the oven and check all functions.

NOTE: Be sure to use an ohmmeter that will supply a forward bias voltage of more than 6.3 volts.

DHIGH VOLTAGE CAPACITOR TEST

1.Disconnect the power supply cord, and then remove outer case.

2.Open the door and block it open.

3.Discharge high voltage capacitor.

4.If the capacitor is open, no high voltage will be available to the magnetron. Disconnect input leads and check for short or open between the terminals using an ohmmeter.

Checking with a high ohm scale, if the high voltage capacitor is normal, the meter will indicate continuity for a short time and should indicate an open circuit once the capacitor is charged. If the above is not the case, check the capacitor with an ohmmeter to see if it is shorted between either of the terminals and case. If it is shorted, replace the capacitor.

5.Reconnect all leads removed from components during testing.

6.Reinstall the outer case (cabinet).

7.Reconnect the power supply cord after the outer case is installed.

8.Run the oven and check all functions.

ECAVITY THERMAL CUT-OUT TEST

1.Disconnect the power supply cord, and then remove outer case.

2.Open the door and block it open.

3.Discharge high voltage capacitor.

4.A continuity check across the thermal cut-out terminals should indicate a closed circuit unless the temperature of the thermal cut-out reaches approximately 293OF(145OC).

An open thermal cut-out indicates overheating of the oven, exchange the oven thermal cut-out and check inside of oven cavity and for improper setting of cooking time or operation of control unit. Check for restricted air flow through the vent holes of the oven cavity, especially the cooling fan and air guide.

5.Reconnect all leads removed from components during testing.

6.Reinstall the outer case (cabinet).

7.Reconnect the power supply cord after the outer case is installed.

MAGNETRON TEMPERATURE FUSE TEST

1.Disconnect the power supply cord, and then remove outer case.

2.Open the door and block it open.

3.Discharge high voltage capacitor.

4.A continuity check across the magnetron temperature fuse terminals should indicate a closed circuit unless the temperature of the magnetron temperature fuse reaches approximately 302OF(150OC). An open magnetron temperature fuse indicates overheating of the magnetron. Check for restricted air flow to the magnetron, especially the cooling fan air guide.

16

Page 15 Page 17
Image 16
Page 15 Page 17
Contents Table of Contents Over the Range Microwave Oven ModelsBefore Servicing When the testing is completed Dont Touch Before ServicingRequirements Microwave Measurement ProcedureLeakage test Electrolux Product Specification General InformationOven Diagram Control Panel Operation Description of Operating SequenceHorizontal Venting Vertical VentingRE-CIRCULATION Inside Venting Figure O-1. Oven Schematic-Off Condition Description and Function of Components FunctionsTroubleshooting Guide CK = Check / RE = Replace Microwave Output Power Procedure Component Test Letter Magnetron Assembly TestPower Transformer Test High Voltage Capacitor Test Magnetron Temperature Fuse TestCavity Thermal CUT-OUT Test Procedure Component Test Letter TEMPERATURE, Replace Temperature FusePrimary Interlock Switch Test Door Sensing SwitchMonitor Switch Test Secondary Interlock Relay RY2Hood Thermal CUT-OUT Test ProcedureHood FAN Motor Test Before testing KEY Unit Test Relay TestFoil Pattern on the Printed Wiring Board Test Defrost Center Test1ST Stage 2ND Stage Level TimeRemoval Occurrence Cause or CorrectionSteps Occurrence Cause or Correction Procedure Component Test Letter Noise Filter Test Measuring Point Indication of OHM-METERDescription of LSI Touch Control Panel AssemblyLSI Signal to sound buzzer 2.0 kHz OUT Oven lamp, fan motor and turntable motor driving signalSignal coming from touch key Signal similar to P46Key strobe signal Hood lamp driving signalHood motor driving signal Segment data signalOther Precautions ServicingShapes of Electronic Components Servicing of Touch Control PanelComponent Replacement and Adjustment Procedure Hood Exhaust Louver RemovalPower Transformer Removal Re-installPictorial Diagram Hood FAN Motor RemovalMagnetron Removal High Voltage Rectifier and High Voltage Capacitor RemovalHood FAN Thermal CUT-OUT Removal Thermal CUT-OUT Cavity RemovalCooling FAN Motor Removal InstallationSide View Positive Lock Connector NO-CASE Type Removal Control Panel ASSEMBLY, Control Unit and KEY Unit RemovalPositive lock connector Turntable MotorKey unit location Control Unit and KEY Unit RemovalDoor Replacementdoor Assembly Removal Door Assembly RE-INSTALLDoor Disassembly Door Frame AssemblyChoke Cover Latch SPRING, Latch Head and Door PanelDiagram PictorialFigure S-2. Power Unit Circuit LSI Unit Circuit Figure S-4. Printed Wiring Board Parts List Electric PartsCabinet Parts Control Panel PartsMiscellaneous Door PartsSCREWS,NUTS, Washers and Other Oven and Cabinet Parts Control Panel Parts Door Parts Miscellaneous Packing and Accessories Non-replaceable itemsFMV156DBE FMV156DSE FMV156DQE FMV156DCF FMV156DBE FMV156DSE FMV156DQE FMV156DCF FMV156DBE FMV156DSE FMV156DQE FMV156DCF

FMV156DBE specifications

The Electrolux FMV156DBE is a modern and versatile microwave oven that combines sleek aesthetics with cutting-edge technology, making it a popular choice for contemporary kitchens. This model offers a range of advanced features designed to streamline cooking and enhance convenience while ensuring users can prepare meals efficiently.

One of the standout features of the Electrolux FMV156DBE is its powerful 1.6 cubic feet capacity, which provides ample space for cooking various dishes, from reheating leftovers to defrosting frozen goods. Its 1,000-watt power output allows for fast and efficient cooking, ensuring that food is heated evenly and thoroughly. The microwave also features multiple power levels, enabling users to customize cooking intensity based on their specific needs.

This model is equipped with the Sensor Cooking technology, which automatically adjusts cooking time and power based on the moisture released from the food. This intelligent feature helps to prevent overcooking or undercooking, delivering perfectly prepared meals every time. Additionally, the FMV156DBE includes a range of pre-programmed cooking settings that cater to different food types, further enhancing usability and efficiency.

Another notable aspect of the Electrolux FMV156DBE is its intuitive touch control panel, allowing for easy navigation through cooking options and settings. The illuminated LED display enhances visibility, making it simple to monitor cooking progress at a glance. The microwave also features a convenient kitchen timer and a clock function, adding to its overall functionality.

The microwave not only excels in cooking performance but also in design. It features a contemporary stainless-steel finish that adds a touch of elegance to any kitchen decor. The streamlined design ensures it can fit seamlessly into various kitchen layouts, while the built-in design options provide flexibility for installation.

Safety is also a priority with the Electrolux FMV156DBE, which includes a child lock feature, preventing unintended use by little hands. This quality makes it an ideal appliance for families with children.

In summary, the Electrolux FMV156DBE is a highly functional microwave oven that features advanced cooking technologies, an ample cooking capacity, and a stylish design. With its combination of performance, convenience, and safety features, it serves as a valuable addition to any modern kitchen.
Top Page Image Contents