Electrolux FMV156DBE service manual Occurrence Cause or Correction, Removal

Page 23

FMV156DBE

FMV156DSE

FMV156DQE

FMV156DCF

TEST PROCEDURES

PROCEDURE

 

COMPONENT TEST

LETTER

 

 

 

 

 

 

 

 

 

 

 

 

STEPS

OCCURRENCE

 

CAUSE OR CORRECTION

 

 

 

 

 

 

 

 

1

Only pattern at "a" is broken.

 

*Insert jumper wire J1 and solder.

 

 

 

 

 

 

 

 

2

Pattern at "a" and "b" are broken.

 

*Insert the coil RCILF2003YAZZ between "c" and "d".

 

 

 

 

 

 

6)Make a visual inspection of the varistor. Check for burned damage and examine the transformer with a tester for the presence of layer short-circuit (check the primary coil resistance which is approximately 215Ω ± 10%). If any abnormal condition is detected, replace the defective parts.

c

(J1)

b RY3

 

7

a

d

 

 

 

P

CN - A

 

VRS1

T1

7) Reconnect all leads removed from components during testing.

8) Re-install the control unit to the control panel and re-install the control panel to the oven.

9) Reconnect the power supply cord.

10) Run the oven and check all functions.

2. Follow the troubleshooting guide given below, if indicator does not light up after above check and

repairs are finished.

 

 

1)

Disconnect the power supply cord, and then remove outer case. Refer to procedure of " HOOD

 

 

EXHAUST LOUVER REMOVAL ", " REMOVAL OF OVEN FROM WALL " and " OUTER CASE

 

 

REMOVAL ".

 

 

2)

Open the door and block it open.

 

 

3)

To discharge high voltage capacitor, wait for 60 seconds.

4)

Remove the hood intake duct R.

 

 

5)

Disconnect the leads to the primary of the power transformer.

6)

Ensure that these leads remain isolated from other components and oven chassis by using

 

 

insulation tape.

 

 

7)

After that procedure, re-connect the power supply cord.

8)

Follow the troubleshooting guide given below for repair.

 

 

 

 

 

 

STEPS

OCCURRENCE

CAUSE OR CORRECTION

 

 

 

 

 

 

 

 

 

 

The rated AC voltage is not present between

 

 

 

 

1

the normal open terminal of the relay RY2 and

Check supply voltage and oven power cord.

 

 

 

 

the normal open terminal of the relay RY1.

 

 

 

 

 

 

 

 

 

 

2

The rated AC voltage is present at primary

Low voltage transformer or secondary circuit defective.

 

 

 

 

side of low voltage transformer.

Check and repair.

 

 

 

 

 

 

 

9)

Disconnect the power supply cord.

 

 

10)

Open the door and block it open.

 

 

11)

To discharge high voltage capacitor, wait for 60 seconds.

12)

Reconnect all leads removed from components during testing.

13)

Re-install the hood intake duct R.

 

 

14)

Re-install the outer case (cabinet).

 

 

15)

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

16)

Run the oven and check all functions.

 

 

23

Page 22 Page 24
Image 23
Page 22 Page 24
Contents Over the Range Microwave Oven Models Table of ContentsBefore Servicing Dont Touch Before Servicing When the testing is completedLeakage test Microwave Measurement ProcedureRequirements Electrolux General Information Product SpecificationOven Diagram Control Panel Description of Operating Sequence OperationRE-CIRCULATION Inside Venting Vertical VentingHorizontal Venting Figure O-1. Oven Schematic-Off Condition Functions Description and Function of ComponentsTroubleshooting Guide CK = Check / RE = Replace Power Transformer Test Procedure Component Test Letter Magnetron Assembly TestMicrowave Output Power Cavity Thermal CUT-OUT Test Magnetron Temperature Fuse TestHigh Voltage Capacitor Test Door Sensing Switch Procedure Component Test LetterTEMPERATURE, Replace Temperature Fuse Primary Interlock Switch TestSecondary Interlock Relay RY2 Monitor Switch TestHood FAN Motor Test ProcedureHood Thermal CUT-OUT Test Before testing Relay Test KEY Unit TestLevel Time Foil Pattern on the Printed Wiring Board TestDefrost Center Test 1ST Stage 2ND StageSteps Occurrence Cause or Correction Occurrence Cause or CorrectionRemoval Measuring Point Indication of OHM-METER Procedure Component Test Letter Noise Filter TestLSI Touch Control Panel AssemblyDescription of LSI Signal similar to P46 Signal to sound buzzer 2.0 kHzOUT Oven lamp, fan motor and turntable motor driving signal Signal coming from touch keySegment data signal Key strobe signalHood lamp driving signal Hood motor driving signalServicing of Touch Control Panel Other PrecautionsServicing Shapes of Electronic ComponentsHood Exhaust Louver Removal Component Replacement and Adjustment ProcedureHood FAN Motor Removal Power Transformer RemovalRe-install Pictorial DiagramThermal CUT-OUT Cavity Removal Magnetron RemovalHigh Voltage Rectifier and High Voltage Capacitor Removal Hood FAN Thermal CUT-OUT RemovalSide View InstallationCooling FAN Motor Removal Turntable Motor Positive Lock Connector NO-CASE Type RemovalControl Panel ASSEMBLY, Control Unit and KEY Unit Removal Positive lock connectorControl Unit and KEY Unit Removal Key unit locationDoor Assembly RE-INSTALL Door Replacementdoor Assembly RemovalLatch SPRING, Latch Head and Door Panel Door DisassemblyDoor Frame Assembly Choke CoverPictorial DiagramFigure S-2. Power Unit Circuit LSI Unit Circuit Figure S-4. Printed Wiring Board Control Panel Parts Parts ListElectric Parts Cabinet PartsSCREWS,NUTS, Washers and Other Door PartsMiscellaneous Oven and Cabinet Parts Control Panel Parts Door Parts Miscellaneous Non-replaceable items Packing and AccessoriesFMV156DBE FMV156DSE FMV156DQE FMV156DCF FMV156DBE FMV156DSE FMV156DQE FMV156DCF FMV156DBE FMV156DSE FMV156DQE FMV156DCF
Top Page Image Contents