background image

 

SERVICE MANUAL

CAUTION

Before servicing the oven, read the “Safety Precautions” section on page 2 of this manual.

POWER REQUIREMENTS

230

 Volts AC

10

 Ampere (Single Circuit)

50

 Hertz

Single Phase, 3 Wire Grounded

POWER OUTPUT

900

 Watts nominal of R-F

microwave energy at operating fre-
quency of 2,450 MHz

UNIT DIMENSIONS

Width 

520mm

Height 

292mm

Depth 

376mm

Shipping Weight 

18.8kg

COOKING CAVITY DIMENSIONS

Width 

349mm

Height 

220mm

Depth 

350mm

Safety Precautions.......................................................................Cover
Installation Instructions ........................................................................2
General Information.............................................................................2
Microwave Radiation Test ...................................................................2
Safety Precautions for Disassembly and Repair.................................3
Description & Function of Components...............................................3
Electrical Operation .............................................................................4
Door & Interlock Adjustments ..............................................................4
Component Test Procedures...............................................................5
Disassembly & Replacement of Parts.................................................6
Wiring Diagram ...................................................................................8
Schematic Diagram .............................................................................9
Exploded View ..................................................................................10
Exploded View Parts List...................................................................11

SPECIFICATIONS

CONTENTS

NOTICE

This service information is intended for use by a service technician who is familiar with proper and safe procedures to be followed
when repairing any electrical or gas appliance and who is equipped with proper tools and testing devices. Repairs covered in this
publication and made by uninformed persons can result in hazards developing due to improper assembly or adjustment. While mak-
ing such repairs, persons not having the proper background may subject themselves to the risk of injury or electrical shock which
can be serious or even fatal.
A. If the oven is operative prior to servicing, a microwave emission check should be performed prior to servicing the oven.
B. Inform the manufacturer, importer, or assembler of any certified oven unit found to have a microwave emission level in excess

of 5 mW/cm2. Repair any unit found to have excessive emission levels at no cost to the owner and attempt

 to ascertain the cause

of the excessive leakage. The owner of the unit should be instructed not to use the unit until the oven

 has been brought into

compliance.

C. If the oven operates with the door open: 1) tell the user not to operate the oven and 2) contact the manufacturer and/or importer

immediately.

D. Remember to connect the monitor switch after replacement and to check interlock/monitor continuity.

IMPORTANT NOTE TO THE CONSUMER

The manufacturer will not be responsible for injury or property damage arising from service performed by anyone other than author-
ized Service Centers. If you perform service on your own products, you must assume responsibility for personal injury or property
damage which may result.

REFERENCE No. 

SM

-2400014

Product Code No.

EM-

FL50NEUK

    

1-437-

602

-

13

Model
EM-FL50N

Summary of Contents for EM-FL50N

Page 1: ...hazards developing due to improper assembly or adjustment While mak ing such repairs persons not having the proper background may subject themselves to the risk of injury or electrical shock which can be serious or even fatal A If the oven is operative prior to servicing a microwave emission check should be performed prior to servicing the oven B Inform the manufacturer importer or assembler of an...

Page 2: ...dance with the National Electrical Codes DO NOT use a two prong adapter since proper grounding is not assured even if the ground wire or metal tab is connected to the outlet box The use of an extension cord is not recom mended However if it is necessary to use an extension cord it must be a type s with 3 num ber 16 wires and have a 3 prong grounded plug The extension cord should not drape over a c...

Page 3: ... completely safe during normal operation However carelessness in servicing the oven can result in an electric shock or pos sible danger from a short circuit You are asked to observe the following precau tions carefully 1 Always remove the power plug from the out let before servicing 2 Use an insulated screwdriver and wear rub ber gloves when servicing the high voltage side 3 Discharge the high vol...

Page 4: ... would extend cooking time or high power output high rise in water temperature which would reduce cooking time Because cooking times can be adjusted to compensate for power output the magnetron tube assembly should be replaced only if the water temperature rise test indicates a power output well beyond the normal limits This test is only accurate if the power supply line voltage is 230 Volts while...

Page 5: ...any suspected high voltage problem 1 Unplug oven from its power source 2 After removing the cabinet discharge the capacitor by shorting the two capacitor ter minals together with an insulated screw driver 3 Visually check the high voltage wiring for proper connections Refer to wiring dia gram for proper wiring sequence CAUTIONS HIGH VOLTAGES ARE PRE SENT DURING THE COOK HIGH CYCLE SO EXTREME CAUTI...

Page 6: ...n both directions or if an infinite resistance is read in both directions the diode is probably defective and should be replaced If the diode check is normal go to Magnetron Check CHECKING H V DIODES ALTERNA TIVE METHOD Many times the diode you check as open is probably good We have found that many of you are checking them out on the wrong scale of your meter or that your meter is physically not a...

Page 7: ...REPLACING THE FUSE IMPORTANT IF THE 10 AMP FUSE BLOWS REFER TO THE TESTING PROCE DURE DO NOT REPLACE IT UNTIL THE PROBLEM IS CORRECTED ALSO IF AT ANY TIME THE OVEN FUSE BLOWS DUE TO AN OVEN FAULT OR THE CIRCUIT BREAKER TRIPS AFTER BEING RESET ONCE WITH THE HOUSE CIRCUIT UNLOADED EXCEPT FOR THE OVEN THE INTERLOCK SWITCHES MUST BE REPLACED AS A GROUP THIS IS BECAUSE THE SHORT CIRCUIT WILL HAVE DAMAG...

Page 8: ... the green ground wire under the screw ELECTRONIC CONTROLLER ASSEM BLY REMOVAL 1 Disconnect power from the unit Remove the cabinet and discharge the capacitor 2 Remove screw at top that holds the control panel to the oven chassis 3 Controller can be replaced by removing screws through rear of control panel and replacing with new control wire for wire Reverse above steps to reinstall 4 NOTE The onl...

Page 9: ...UNIT FAN CL CONTROL BOARD TURN TABLE MOTOR MG MONITOR SWITCH TRANSFORMER CN1 KEY BOARD 1 2 3 4 5 6 7 8 9 10 CAPACITOR DIODE MAGNETRON CONDITIONS DOOR CLOSED TIMER ON POWER SELECTOR SWITCH MICROWAVE CAVITY LIGHT TP3 TP1 TP2 TP4 TP6 TT BM MAGNETRON THERMAL SWITCH HV FUSE 0 65A TP7 0 5 ohms 10W CIRCUIT DIAGRAM FOR 1 0 cf Touch 230V NC NO 9 ...

Page 10: ...1 2 3 18 19 31 24 21 27 28 34 44 30 39 17 32 29 38 9 15 35 7 16 Exploded View Model EM FL50N 8 10 11 12 12 13 33 36 37 14 23 22 26 20 25 43 4 41 42 6 40 ...

Page 11: ...ISE FILTER UNIT 1 MO S 0688 20 PCB ASSEMBLY PCB N G 1 2 1 MO A 0796 21 SWITCH LEVER 1 1 MO R 0002 22 SWITCH LEVER 2 1 MO R 0740 23 HV FUSE 0 75A 1 432 0 8335 02100 24 SWITCH BRACKET 1 MO R 0440S 25 OPEN LEVER 1 MO R 0739 26 FOOT FRONT 2 MO D 2341 27 FAN 1 MO R 0235N 28 FAN CASING 1 MO R 0439S 29 AIR GUIDE 1 MO R 0471S 30 CAPACITOR HOLDER 1 MO M 0703 31 AC POWER RELAY 1 MO S 0576 32 GLASS TRAY 1 MO...

Reviews: