Electrolux E30MH65GPSA Operating manual

Publication #5995535480 P/N 316439276 June 200 9
Technical Service Manual
Over The Range Microwave Oven
Models
E30MH65GPSA
E30MH65GSSA

Basic Information
1-1
Safe Servicing Practices
Avoid personal injury and/or property damage by observing important Safe Servicing Practices.
Following are some limited examples of safe practices:
1. DO NOT attempt a product repair if you have any doubts as to your ability to complete the repair in a safe and
satisfactory manner.
2. Always Use The Correct Replacement Parts as indicated in the parts documentation. Substitutions may defeat
compliance with Safety Standards Set For Home Appliances. Do not exceed maximum recommended wattage on
light bulb replacements. Doing so could blow fuses and/or damage transformers.
3. Before servicing or moving an appliance:
• Remove power cord from the electrical outlet, trip circuit breaker to the OFF position, or remove fuse.
4. Never interfere with the proper operation of any safety device.
5. Use ONLY REPLACEMENT PARTS CATALOGED FOR THIS APPLIANCE. Substitutions may defeat compliance
with Safety Standards Set For Home Appliances.
6. GROUNDING: The standard color coding for safety ground wires is GREEN, or GREEN with YELLOW STRIPES.
Ground leads are not to be used as current carrying conductors. It is EXTREMELY important that the service
technician reestablish all safety grounds prior to completion of service. Failure to do so will create a hazard.
7. Prior to returning the product to service, ensure that:
• All electrical connections are correct and secure.
• All electrical leads are properly dressed and secured away from sharp edges, high-temperature components,
and moving parts.
• All non-insulated electrical terminals, connectors, heaters, etc. are adequately spaced away from all metal
parts and panels.
• All safety grounds (both internal and external) are correctly and securely connected.
• All panels are properly and securely reassembled.
© 2009 Electrolux Home Products, Inc.

1-2
Basic Information
This Manual has been prepared to provide Electrolux Service Personnel with Operation and
Service Information for Electrolux Microwave Ovens E30MH65GPSA and E30MH65GSSA.
Table of Contents
Section 1 Basic Information
Safe Servicing Practices.......................................... 1-1
Table of Contents .................................................... 1-2
Warnings and Safety Information ............................ 1-3
Precautions To Be Observed Before And During
Servicing To Avoid Possible Exposure To
Excessive Microwave Energy.................................. 1-4
Before Servicing ...................................................... 1-4
Danger High Voltage ............................................... 1-4
Before Servicing ...................................................... 1-5
When Testing Is Completed .................................... 1-5
Microwave Measurement Procedure USA .............. 1-6
Microwave Measurement Procedure Canada ......... 1-7
Product Specification............................................... 1-8
Grounding Instructions ............................................ 1-9
Discharging Capacitor ............................................. 1-9
Oven Diagram ......................................................... 1-10
Accessory Components........................................... 1-10
Section 2 Installation and Operation
Section 2 Installation and Operation
Installation ............................................................... 2-1
Fan Operation.......................................................... 2-1
Automatic Fan ...................................................... 2-1
Vent Blower.......................................................... 2-1
Lighting and Filters .................................................. 2-2
Cooktop Lights ..................................................... 2-2
Oven Light............................................................ 2-2
Grease Filters....................................................... 2-2
Grille Removal...................................................... 2-2
Removing Charcoal Filter..................................... 2-2
Section 3 Troubleshooting and Error Codes
Warnings and Cautions ........................................... 3-1
Troubleshooting Guide Chart .................................. 3-2
Error Codes ............................................................ 3-4
Section 4 Component Teardown and Testing
Warnings and Cautions ........................................... 4-1
Removing Oven From Wall ..................................... 4-2
Grille Removal......................................................... 4-2
Outer Case Removal............................................... 4-2
High Voltage Transformer and Fan Motor
Assembly Removal.................................................. 4-3
High Voltage Transformer Testing........................... 4-3
Low Voltage Transformer Testing ........................... 4-3
Magnetron Removal ................................................ 4-4
Magnetron Testing................................................... 4-4
Output Power of Magnetron .................................... 4-4
High Voltage Capacitor Testing............................... 4-5
High Voltage Diode Testing..................................... 4-5
Main Relay and Power Control Relay Testing......... 4-5
Vent Blower Testing ................................................ 4-6
Run Capacitor.......................................................... 4-6
Vent Blower Removal.............................................. 4-6
Door “C” Removal.................................................... 4-7
Door “E” Removal.................................................... 4-7
Main Fuse Removal................................................. 4-8
Drive Motor Removal............................................... 4-8
Stirrer Motor Removal ............................................. 4-8
Stirrer Removal........................................................ 4-8
Thermal Cutout Removal......................................... 4-9
Oven Thermal Cutout........................................... 4-9
Hood Thermal Cutout........................................... 4-9
Bottom Thermal Cutout ........................................ 4-9
Magnetron Thermal Cutout .................................. 4-9
Sensor Removal...................................................... 4-10
Convection Fan Assembly....................................... 4-10
Servicing The Touch Control Panel......................... 4-11
Control Box Removal............................................... 4-12
P.C.B Assembly Removal ....................................... 4-12
Door Sensing Switch/Primary Switch/
And Monitor Switch Removal .................................. 4-13
Door Sensing Switch/Primary Switch/
And Monitor Switch Adjustment............................... 4-13
Section 5 Wire Diagrams
Wiring Diagram........................................................ 5-1
Section 6 Parts List
Parts Listing............................................................. 6-1
Oven And Cabinet Parts Exploded View................. 6-3

Basic Information
1-3
THIS SERVICE MANUAL IS INTENDED FOR USE BY PERSONS HAVING ELECTRICAL AND MECHANICAL
TRAINING AND A LEVEL OF KNOWLEDGE OF THESE SUBJECTS GENERALLY CONSIDERED
ACCEPTABLE IN THE APPLIANCE REPAIR TRADE. ELECTROLUX HOME PRODUCTS CANNOT BE
RESPONSIBLE, NOR ASSUME ANY LIABILITY, FOR INJURY OR DAMAGE OF ANY KIND ARISING FROM
THE USE OF THIS MANUAL.
All repairs should be done in accordance with the procedures described in this manual. This product
complies with Federal Performance Standard 21 CFR Subchapter J(DHHS).
Never defeat any of the B+ voltage interlocks. Do not apply AC power to the unit (or any of its assemblies)
unless all solid-state heat sinks are correctly installed.
Some semiconductor (“solid state”) devices are easily damaged by static electricity. Such components
are called Electrostatically Sensitive Devices (ESDs). Examples include integrated circuits and field-effect
transistors.
Immediately before handling any semiconductor components or assemblies, drain the electrostatic
charge from your body by touching a known earth ground.
NEVER OPERATE THE OVEN UNTIL THE FOLLOWING POINTS ARE ENSURED.
(A) THE DOOR IS TIGHTLY CLOSED.
(B) THE DOOR BRACKETS AND HINGES ARE NOT DEFECTIVE.
(C) THE DOOR PACKING IS NOT DAMAGED.
(D) THE DOOR IS NOT DEFORMED OR WARPED.
(E) THERE IS NO OTHER VISIBLE DAMAGE WITH THE OVEN.
SERVICING AND REPAIR WORK MUST BE CARRIED OUT ONLY BY TRAINED SERVICE PERSONNEL.
SERVICEMEN SHOULD REMOVE THEIR WATCHES WHENEVER WORKING CLOSE TO OR REPLACING THE
MAGNETRON.
CERTAIN INITIAL PARTS ARE INTENTIONALLY NOT GROUNDED AND PRESENT A RISK OF ELECTRICAL
SHOCK ONLY DURING SERVICING. SERVICE PERSONNEL - DO NOT CONTACT THE FOLLOWING PARTS
WHILE THE APPLIANCE IS ENERGIZED:
INVERTER UNIT, THAT INCLUDES HIGH VOLTAGE CAPACITOR, HIGH VOLTAGE POWER TRANSFORMER,
HIGH VOLTAGE RECTIFIER, HEAT SINK, ETC., AND MAGNETRON, HIGH VOLTAGE HARNESS ETC.;
IF PROVIDED, FAN ASSEMBLY, COOLING FAN MOTOR.
ALL THE PARTS MARKED “*” ON PARTS LIST ARE USED AT VOLTAGES MORE THAN 250V.
REMOVAL OF THE OUTER WRAPPER GIVES ACCESS TO VOLTAGE ABOVE 250V.
ALL THE PARTS MARKED “Ä” ON PARTS LIST MAY CAUSE UNDUE MICROWAVE EXPOSURE, BY
THEMSELVES, OR WHEN THEY ARE DAMAGED, LOOSENED OR REMOVED.

1-4
Basic Information
Precautions To Be Observed Before And During Servicing To Avoid
Possible Exposure To Excessive Microwave Energy
(a) Do not operate or allow the oven to be operated with the door open.
(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave
source, and make repairs as necessary: (1) interlock operation, (2) proper door closing, (3) seal and sealing
surfaces (arcing, wear, and other damage), (4) damage to or loosening of hinges and latches, (5) evidence of
dropping or abuse.
(c) Before turning on microwave power for any service test or inspection within the microwave generating
compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment, integrity,
and connections.
(d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and
transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the
oven is released to the owner.
(e) A microwave leakage check to verify compliance with the Federal Performance Standard should be performed on
each oven prior to release to the owner.
Before Servicing
Before servicing an operative unit, perform a microwave emission check as per the Microwave Measurement
Procedure outlined in this service manual.
If microwave emissions level is in excess of the specified limit, contact ELECTROLUX HOME PRODUCTS, INC.
immediately.
If the unit operates with the door open, service person should:
1) Tell the user not to operate the oven.
2) Contact Electrolux HOME PRODUCTS, INC. and Food and Drug Administration’s Center for Devices and
Radiological Health immediately.
Service personnel should inform ELECTROLUX HOME PRODUCTS, INC. of any certified unit found with emissions
in excess of 4mW/cm2. The owner of the unit should be instructed not to use the unit until the oven has been brought
into compliance.
DANGER HIGH VOLTAGE
Do not energize a microwave oven with the outer case cabinet removed, because a microwave oven generates high
voltage in the circuit.
If you intend to operate the oven employing the high frequency switching power converter circuit, you should take
special precautions to avoid an electrical shock hazard.
The high voltage transformer, high voltage capacitor and high voltage diode have energized high voltage potential
of approximately 8KV.
The aluminium heat sink is connected to the switching power transistor collector pole, and has an energized high
voltage potential of approximately 650V peak.
DO NOT ACCESS THE HIGH VOLTAGE TRANSFORMER, HIGH VOLTAGE CAPACITOR, HIGH VOLTAGE
DIODE AND HEAT SINK WHEN THE POWER SUPPLY IS CONNECTED TO AN ELECTRICAL OUTLET.

Basic Information
1-5
Before Servicing
1. Disconnect the power supply cord, and then remove
outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
Whenever troubleshooting is performed, the power
supply must be disconnected. It may, in some cases, be
necessary to connect the power supply after the outer
case has been removed, in this event:
1. Disconnect the oven power supply cord and then
remove the outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect leads to the primary of the inverter unit.
5. Ensure that these leads remain isolated from other
components and oven chassis by using insulation
tape.
6. After that procedure, reconnect the power supply
cord.
When Testing Is Completed
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. Reconnect leads to the primary of the inverter unit.
5. Reinstall the outer case (cabinet).
6. Reconnect the power supply cord after the outer
case is installed.
7. Run the oven and check all functions.
After repairing
1. Reconnect all leads removed from components
during testing.
2. Reinstall the outer case (cabinet).
3. Reconnect the power supply cord after the outer
case is installed.
4. Run the oven and check all functions.
Microwave ovens should not be run empty. To test
for the presence of microwave energy within a cavity,
place a cup of cold water on the oven turntable, close
the door and set the power to HIGH and then set the
microwave timer for two (2) minutes. When the two
minutes has elapsed (timer at zero) carefully check
that the water is now hot. If the water remains cold
carry out Before Servicing procedure and re-examine
the connections to the component being tested.
MICROWAVE OVENS CONTAIN CIRCUITRY CAPABLE OF PRODUCING
VERY HIGH VOLTAGE AND CURRENT. CONTACT WITH THE
FOLLOWING PARTS MAY RESULT IN A SEVERE, POSSIBLY FATAL,
ELECTRICAL SHOCK.
INVERTER UNIT,THAT INCLUDES HIGH VOLTAGE CAPACITOR,
HIGH VOLTAGE POWER TRANSFORMER, HIGH VOLTAGE RECTIFIER,
HEAT SINK ETC., AND MAGNETRON, HIGH VOLTAGE HARNESS ETC..
READ THE SERVICE MANUAL CAREFULLY AND FOLLOW ALL
INSTRUCTIONS. Don't Touch !
Danger High Voltage
To discharge the high voltage capacitor, wait for 60
seconds and then short-circuit the connection of
the high-voltage capacitor (that is the connecting
lead of the high-voltage rectifier) against the
chassis with the use of an insulated screwdriver.
To discharge the high voltage capacitor, wait for 60
seconds and then short-circuit the connection of
the high-voltage capacitor (that is the connecting
lead of the high-voltage rectifier) against the
chassis with the use of an insulated screwdriver.

1-6
Basic Information
Microwave Measurement Procedure (USA)
A. Requirements:
1) Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a
microwave oven should not exceed 1 mW/cm2at any point 5 cm or more from the external surface of the
oven, measured prior to acquisition by a purchaser, and thereafter (through the useful life of the oven),
5 mW/cm2at any point 5 cm or more from the external surface of the oven.
2) Safety interlock switches: Primary interlock switch shall prevent microwave radiation emission in excess of the
requirement as above mentioned, secondary interlock switch shall prevent microwave radiation emission in
excess of 5 mW/cm2at any point 5 cm or more from the external surface of the oven.
B. Preparation for testing:
Before beginning the actual measurement of leakage, proceed as follows:
1) Make sure that the actual instrument is operating normally as specified in its instruction booklet.
Important:
Survey instruments that comply with the requirement for instrumentation as prescribed by the performance
standard for microwave ovens, 21 CFR 1030.10(c)(3)(i), must be used for testing.
2) Place the oven tray in the oven cavity.
3) Place the load of 275±15 ml (9.8 oz) of tap water initially at 20°±5C (68±9°F) in the center of the oven cavity.
The water container shall be a low form of 600 ml (20 oz) beaker with an inside diameter of approx. 8.5 cm
(3-1/2 in.) and made of an electrically nonconductive material such as glass or plastic. The placing of this
standard load in the oven is important not only to protect the oven, but also to insure that any leakage is
measured accurately.
4) Set the cooking control on Full Power Cooking Mode.
5) Close the door and select a cook cycle of several minutes. If the water begins to boil before the survey is
completed, replace it with 275 ml of cool water.
C. Leakage test:
Closed-door leakage test (microwave measurement)
1) Grasp the probe of the survey instrument and hold it perpendicular to the gap between the door and
the body of the oven.
2) Move the probe slowly, not faster than 1 in./sec. (2.5 cm/sec.) along the gap, watching for the maximum
indication on the meter.
3) Check for leakage at the door screen, sheet metal seams and other accessible positions where the continuity
of the metal has been breached (eg., around the switches, indicator, and vents). While testing for leakage
around the door pull the door away from the front of the oven as far as is permitted by the closed latch
assembly.
4) Measure carefully at the point of highest leakage and make sure that the highest leakage is no greater than
4 mW/cm2, and that the primary interlock switch and secondary interlock switch do turn the oven OFF before
any door movement.
NOTE: After servicing, record data on service invoice and microwave leakage report.

Basic Information
1-7
Microwave Measurement Procedure (Canada)
After adjustment of the door switches are completed individually or collectively, switch test and microwave leakage
test must be performed with survey instrument and test result must be confirmed to meet the requirement of the
performance standard for microwave ovens as under mentioned.
A. Requirements:
Every microwave oven shall function in such a manner that when the oven is fully assembled and operating with
its service controls and user controls adjusted to yield the maximum output, the leakage radiation, at all points at
least 5 cm. from the external surface of the oven, does not exceed:
1) 1.0 mW/cm2with the test load of 275 ± 15 ml of water at an initial temperature 20 ±5°C.
2) 5.0 mW/cm2when the outer enclosure is removed with a test load of 275 ± 15 ml of water at an initial
temperature 20±5°C.
3) 5.0 mW/cm2without a test load.
B. Preparation for testing:
Before beginning the actual measurement of leakage, proceed as follows:
1) Make sure that the actual instrument is operating normally as specified in its instruction booklet.
Survey instruments that comply with the requirement for instrumentation as prescribed by CSA and NHW
performance standard for microwave ovens must be used for testing recommended instruments are, NARDA
8100 and NARDA 8200.
2) Place the oven tray in the oven cavity.
3) Place the load of 275±15 ml (9.8 oz) of tap water initially at 20°±5C (68±9°F) in the center of oven cavity.
The water container shall be a low form of a 600 ml (20 oz) beaker with an inside diameter of approx. 8.5 cm
(3-1/2 in.) and made of an electrically nonconductive material such as glass or plastic. The placing of
this standard load in the oven is important not only to protect the oven, but also to insure that any leakage is
measured accurately.
4) Set the cooking control on Full Power Cooking Mode.
5) Close the door and select a cook cycle of several minutes. If the water begins to boil before the survey is
completed, replace it with 275 ml of cool water.
C. Leakage test with enclosure installed:
1) Grasp probe of survey instrument and hold it perpendicular to gap between door and the body of the oven.
2) Move the probe slowly, not faster than 2.5 cm/sec. along the gap, watching for maximum indication on meter.
3) Check for leakage at the door screen, sheet metal seams and other accessible positions where the continuity
of the metal has been breached (eg., around the switches, indicator, and vents). While testing for leakage
around door, pull door away from the front of the oven as far as is permitted by the closed latch assembly.
4) Measure carefully at the point of highest leakage and make sure that the highest leakage is no greater
than 4 mW/cm2, and that the primary interlock switch and secondary interlock switch do turn the oven
OFF before any door movement.
D. Leakage test without enclosure:
1) Remove the enclosure (cabinet).
2) Grasp the probe of the survey instrument and hold it perpendicular to all mechanical and electric parts of the
oven that is accessible to the user of the oven including, but not limited to, the waveguide, cavity seams,
magnetron gap between the door and the body of the oven.
3) Move probe slowly, not faster than 2.5 cm/sec. along the gap, watching for the maximum indication on meter.
4) Measure carefully at the point of highest leakage and make sure that the highest leakage is under 5 mW/cm2.
CAUTION: Special attention should be given to avoid electrical shock because HIGH VOLTAGE is generated
during this test.
E. No Load test
1) Operate the oven without a load and measure the leakage by the same method as the above test procedure
“ Leakage test with enclosure installed”
2) Make sure that the highest leakage should not exceed 5 mW/cm2.
NOTE: After servicing, record data on service invoice and microwave leakage report.

1-8
Basic Information
Product Specification
Item Description
Power Requirements (USA)120 Volts / 13.0 Amperes / 1600 Watt
60 Hertz
Single phase, 3 wire grounded
Power Output 950 watts (IEC 705 Test Procedure)
Operating frequency of 2450MHz
Outside Dimensions) Width 29-7/8” Height 16-15/16” Depth 15-7/16”
Lighting 2- 20 Watt halogen bulbs
Cooling Method Cooling Fan Motor
Control Complement Touch Control System
Clock ( 1:00 - 12:59 )
Timer (0 - 99 min. 99 seconds)
Microwave Power for Variable Cooking
Repetition Rate;
P-HI Full power throughout the cooking time
P-90 approx. 90% of Full Power
P-80 approx. 80% of Full Power
P-70 approx. 70% of Full Power
P-60 approx. 60% of Full Power
P-50 approx. 50% of Full Power
P-40 approx. 40% of Full Power
P-30 approx. 30% of Full Power
P-20 approx. 20% of Full Power
P-10 approx. 10% of Full Power
P-0 No power throughout the cooking time
Sensor modes pads, Auto cook pads, Timer on-off pad, Set clock pad,
User Pref pad, Quick start pad, Number selection pads, Power Level pad,
Add 30 sec pad, Stop/Clear pad, Melt or soften pad, and Start/Enter pad.
Snacks pad, Popcorn pad, Reheat pad, Pizza slice pad, Baked potato pad,
Auto defrost pad, Turntable On/Off pad
Safety Standard UL Listed FCC Authorized
DHHS Rules, CFR, Title 21, Chapter 1, Subchapter J
Canadian Standards Association
Health CANADA, Industry Canada
Net Weight 74.74 lbs.

Basic Information
1-9
Grounding Instructions
This oven is equipped with a three prong grounding plug.
It must be plugged into a wall receptacle that is properly
installed and grounded in accordance with the National
Electrical Code, local codes and ordinances. In the event
of an electrical short circuit, grounding reduces the risk of
electric shock by providing an escape wire for the electric
current.
Electrical Requirements
The oven is equipped with a 3-prong grounding plug.
DO NOT UNDER ANY CIRCUMSTANCES CUT OR
REMOVE THE GROUNDING PIN FROM THE PLUG.
The power supply cord and plug must be connected to a
separate 120 Volt AC, 60 Hz, 15 Amp. or more dedicated
line, using a grounded receptacle. When installing this
appliance, observe all applicable codes and ordinances.
A short power-supply cord is provided to reduce risks of
becoming entangled in or tripping over a longer cord.
Where a two-pronged wall-receptacle is encountered, it is
the personal responsibility and obligation of the customer
to contact a qualified electrician and have it replaced with
a properly grounded three-pronged wall receptacle or
have a grounding adapter properly grounded and
polarized.
If an extension cord must be used, it should be a 3-wire,
15 amp. or more rated cord. Do not drape over a
countertop or table where it can be pulled on by children
or tripped over accidentally.
Discharging Capacitor
1. High Voltage Warning!
Do not attempt to measure any of the high voltages,
this includes the filament voltage of the magnetron.
High voltage is present during any cook cycle.
Before touching any components or wiring, always
unplug the oven and discharge the high voltage
capacitor (See Figure 1-2).
2. The high-voltage capacitor remains charged about
30 seconds after disconnection. Short the negative
terminal of the high-voltage capacitor to the oven
chassis. (Use an insulated screwdriver.)
3. High voltage is maintained within specified limits
by close-tolerance, safety-related components
and adjustments. If the high voltage exceeds the
specified limits, check each of the special
components.
3-Pronged Plug Grounded
Receptacle Box
Grounding Pin
3-Pronged Receptacle
IMPROPER USE OF THE GROUNDING PLUG CAN
RESULT IN A RISK OF ELECTRIC SHOCK.
High Voltage
Capacitor
Figure 1-2. Capacitor Discharging
Figure 1-1. Electrical Connection

1-10
Basic Information
Oven Diagram
2- Numeric
Keypad
5- “Cancel”
Touchpad
Touchpads
3- Secondary
3- Touchpad
2- Touchpad Text
Circles/Semi-circles
1- Background
4- Display
Window
758 mm
389.7 mm
419 mm
404.8 mm
Door
Handle
Window with
Metal Shield Cooking
Guide Rack
Vent Grille
Door Safety
Lock System
Model and
Serial
Number Plate
Glass
Turntable Oven Control
Panel
Drip Pan
Touch Control Panel
Accessory Components
Unpack the microwave oven and check to make sure that
you have all the parts listed below. If any part is missing
or broken, a replacement can be ordered.
1. Registration Card
2. Use and Care Guide
3. Installation Instructions
4. Top Template
5. Wall Template
6. Glass Tray
7. Roller Guide Ring
8. Charcoal filter
9. Hardware-kit
10. Grease Filters
11. Shelf Exhaust Adaptor
12. Drip pan

Installation and Operation
2-1
Installation
The microwave oven is supported by a special bracket
assembly (mounting system) supplied with the oven. The
bracket assembly must be mounted to the wall with toggle
bolts through the wall, and a lag screw into a wall stud.
After the bracket assembly is installed, the unit can be
slid over the two rails of the bracket assembly. Two bolts
are run down through the cabinet bottom and into the
oven case to pull the oven up against the cabinet bottom.
NOTE: For easier removal and personal safety it is
recommended that two people remove this product.
Fan Operation
AUTOMATIC FAN
An automatic fan feature protects the microwave from too
much heat rising from the cooktop below it. The fan will
automatically turn off when the internal parts are cool. It
may stay on for 30 minutes or more after the cooktop and
microwave controls are turned off.
VENT BLOWER
The vent or exhaust blower is located at the top of the
oven. It is shipped for recirculating exhaust but can be
changed to rear or vertical exhaust.
The blower is a two speed (HI-LO) capacitor run blower
assembly located on top of the microwave oven. The
blower is operated by low voltage relays located on the
smart board. The blower motor has 3 winding which can
be tested for continuity from the front by removing the top
grille and opening the control panel. (See Section 4)
The mounting surface must be capable of
supporting the cabinet load, and in addition to the
64 pound product, an additional load of up to 50
pounds for a total weight of 114 pounds.
This product cannot be installed to cabinet
arrangements such as an island or peninsula.
It must be mounted to both a top cabinet and wall.
Mounting Plate
Figure 2-1. Mounting Oven To Bracket

Installation and Operation
2-2
Lighting and Filters
COOKTOP LIGHTS
One 20-watt halogen bulb is located on the bottom.
The bulb is user replaceable by removing one screw and
lowering access cover. The bulb could be difficult to
remove when replaced for the first time. A silicone glue
is used to secure them during shipping. (See Figure 2-2)
OVEN LIGHT
A 20-watt halogen bulb is located in the top of the oven
cavity at the front. It is user replaceable by removing the
top grill (2 screws on front of outer case). The bulb is
accessible by removing a metal cover. (See Figure 2-3)
GREASE FILTERS
The metal filter traps grease released by foods on the
cooktop. They also prevent flames from foods on the
cooktop from damaging the inside of the microwave.
For this reason, the filters must ALWAYS be in place
when the hood vent fan is used. The grease filter should
be cleaned once a month, or as needed. (See Figure 2-4)
GRILLE REMOVAL
The top full-width grille is removable for service to some
components, such as : oven light, cavity T.C.O. vent
motor capacitor and fuse.
To remove grille: (See Figure 2-5)
1. Disconnect oven power.
2. Remove screws (2) from grille outer case.
3. Lift off grille.
REMOVING CHARCOAL FILTER
To remove the charcoal filter, disconnect power at the
main fuse or circuit breaker panel or pull the plug.
Remove the top grille by removing the 2 screws that hold
it in place. Slide the filter towards the front of the oven
and remove from unit. (See Figure 2-6)
Remove Screw
Charcoal Filter
Reusable Grease Filters
Figure 2-2. Cooktop Bulb Removal
Figure 2-3. Oven Light Removal
Figure 2-4. Filter locations
Remove 2 grille screws to remove grille.
Figure 2-6. Charcoal Filter Removal
Figure 2-5. Grille Removal

Troubleshooting and Error Codes
3-1
If the fuse is blown by the Interlock Monitor Switch: Replace all of the following at the same time: Primary,
door sensing switch and power relay, as well as the Interlock Monitor Switch. The correct adjustment
of these switches is described elsewhere in this manual. Make sure the fuse has the correct rating for the
particular model being repaired.
WHENEVER TROUBLESHOOTING IS PERFORMED WITH THE POWER SUPPLY CORD DISCONNECTED. IT
MAY IN, SOME CASES, BE NECESSARY TO CONNECT THE POWER SUPPLY CORD AFTER THE OUTER
CASE HAS BEEN REMOVED, IN THIS EVENT:
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. To discharge high voltage capacitor, wait for 60 seconds and then short-circuit the connection of the
high-voltage capacitor (that is the connecting lead of the high-voltage rectifier) against the chassis
with the use of an insulated screwdriver.
4. Disconnect the leads to the primary of the power transformer.
5. Ensure leads remain isolated from other components and oven chassis by using insulation tape.
6. After that procedure, reconnect the power supply cord.
WHEN THE TESTING IS COMPLETED:
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. To discharge high voltage capacitor, wait for 60 seconds and then short-circuit the connection of the
high-voltage capacitor (that is the connecting lead of the high-voltage rectifier) against the chassis
with the use of an insulated screwdriver.
4. Reconnect the leads to the primary of the power transformer.
5. Reinstall the outer case (cabinet).
6. Reconnect the power supply cord after the outer case is installed.
7. Run the oven and check all functions.
Microwave ovens should not be run empty. To test for the presence of microwave energy within a cavity, place a cup
of cold water on the oven turntable, close the door and set the power to HIGH and then set the microwave timer for
two (2) minutes. When the two minutes has elapsed (timer at zero) carefully check that the water is now hot. If the
water remains cold carry out Before Servicing procedure and re-examine the connections to the component being
tested.
When all service work is completed and the oven is fully assembled, the microwave power output should be checked
and a microwave leakage test should be carried out.
Troubleshooting Guide
When checking the continuity of the switches or transformer, disconnect one lead wire from these parts and
then check continuity without the power source on. To do otherwise may result in a false reading or damage
to your meter.
Do not touch any part of the circuit or the control circuit board, since static discharge may damage it.
Always touch ground while working on it to discharge any static charge built up.

Troubleshooting and Error Codes
3-2
1. Open or loose lead wire harness.
2. Open thermal cutout (Magnetron)
3. Open low voltage transformer.
4. Defective Assembly PCB.
1. Shorted lead wire harness
2. Defective primary latch switch (NOTE 1)
3. Defective monitor switch (NOTE1)
4. Shorted H.V. Capacitor
5. Shorted H.V. Transformer (NOTE2)
1. Key input is not in-Sequence
2. Open or loose connection of membrane
key pad to Ass’y PCB
3. Shorted or open membrane panel
4. Defective Ass’y PCB
1. Off-alignment of latch switches
2. Open or loose connection of high voltage
circuit especially magnetron filament circuit
NOTE: Large contact resistance will bring
lower magnetron filament voltage and
cause magnetron to lower output and/or
intermittent oscillation.
3. Defective high voltage components:
H.V. Transformer H.V. Capacitor
H.V. Diode, H.V. Fuse Magnetron
4. Open or loose wiring of power relay
5. Defective primary latch switch
6. Defective power relay or Ass’y PCB.
1. Misadjustment or loose wiring of primary
latch switch
2. Defective primary latch switch.
Oven is dead.
Fuse is OK.
No display and no
operation at all.
No display and no
operation
at all. Fuse is blown.
Oven does not accept
key input (Program)
Timer starts count-
down but no
microwave oscillation.
(No heat while oven
lamp and fan motor
turn on.)
Oven lamp and fan
motor
turn on.
Check fan motor when thermal
cutout is defective. Check Assembly
PCB when low voltage transformer is
defective. See Section 4: Low Voltage
Transformer Testing
Check adjustment of primary, interlock
monitor, power relay, door sensing
switch. See Section 4: Main Relay and
Power Control Relay Testing, and Door
Sensing Switch/Primary Switch/ And
Monitor Switch Adjustment
Refer to operation procedure.
Replace PCB main.
See Section 4: P.C.B Assembly Removal
Adjust door and latch switches.
See Section 4: Door Sensing Switch/
Primary Switch/ And Monitor Switch
Adjustment
See Section 4: Magnetron Testing
See Section 4: High Voltage Transformer
Testing, Low Voltage Transformer Testing
See Section 4: High Voltage Capacitor
Testing
See Section 4: High Voltage Diode
Testing
Check high voltage component according
to component test procedure and replace
if it is defective.
Replace PCB main.
Adjust door and latch switches.
See Section 4: Door Sensing Switch/
Primary Switch/ And Monitor Switch
Adjustment
Symptom Cause Corrections
NOTE 1: All of these switches must be replaced at the same time.
(refer to adjustment instructions) Check continuity of power relay
contacts and if it has continuity, replace power relay also.
NOTE 2: When H.V. Transformer is replaced, check diode and magnetron also.

Troubleshooting and Error Codes
3-3
1. Open or loose wiring of secondary
interlock switch
2. Off-alignment of primary interlock
3. Defective secondary interlock S/W.
1. Decrease in power source voltage.
2. Open or loose wiring of magnetron
filament circuit. (Intermittent oscillation)
3. Aging of magnetron
Loose wiring of door sensing switch.
Defective Assembly PCB
1. Loose fan and fan motor
2. Loose screws on H.V.Transformer
3. Shorted H.V.Diode
1. Open or loose wiring of turntable
motor.
2. Defective turntable motor.
1. Open or loose wiring of primary
interlock switch.
2. Operation of thermal cutout
(Magnetron)
1. Metallic ware or cooking dishes
touching on the oven wall.
2. Ceramic ware trimmed with gold or
silver powder also causes sparks.
Uneven intensity of microwave due to its
characteristics.
Noise may result from the motor.
Oven can program but
timer does not start.
Microwave output is low:
Oven takes longer time to
cook food.
Fan motor turns on when
plugged in.
Oven does not operate
and return to the plugged
in mode.
Loud buzzing noise can
be heard.
Turntable motor does not
rotate.
Oven stops operation
during cooking.
Sparks
Uneven cooking
Noise from the turntable
motor when it starts to
operate.
Adjust door and interlock switches.
See Section 4: Door Sensing Switch/
Primary Switch/ And Monitor Switch
Adjustment
Consult electrician.
Check wiring. See Section 4: Magnetron
Testing
Replace magnetron.
Check wire of door sensing switch.
See Section 4: Door Sensing Switch/
Primary Switch/ And Monitor Switch
Adjustment
Replace PCB main.
Tighten screws of fan motor.
Tighten screws of H.V.Transformer.
See Section 4: High Voltage Diode
Testing : Replace H.V. Diode if needed.
Replace turntable motor.
Adjust door and latch switches.
See Section 4: Magnetron Testing
See Section 4: Door Sensing Switch/
Primary Switch/ And Monitor Switch
Adjustment
Inform the customer.
Do not use any type of cookware
with metallic trimming.
Wrap thinner parts of the food with
aluminum foil.
Use plastic wrap or cover with a lid.
Stir once or twice while cooking
foods such as soup, cocoa, or milk.
Replace turntable motor.
Symptom Cause Corrections

Troubleshooting and Error Codes
3-4
Error Codes
Error Code Contents Cause of Troubles
E-24
If overheat during cooking causes to reach 500˚F, it stops
all modes of cooking, causes ‘E-24’ error, and converts to
cancel mode.
Sensor Poor
E-22 ‘Short Error’ of thermal sensor -
E-21 ‘Open Error’ of thermal sensor -
E-03
If the WARM, CONVECTION, PREHEAT and BROIL do not
reach over 217 of HEX value within 3 minutes, it causes ‘E3’
error and converts to cancel mode.
Convection Motor Open
Convection Heater Open
E-23
If the PREHEAT does not reach the preset temperature
within 30 minutes, it causes ‘E4’ error and converts to cancel
mode.
Assembly Casing Not Installed
-SE- Key Short Error.
E-11 ‘Open Error’ of gas sensor.
E-12 ‘Short Error’ of gas sensor.
Correctly

Component Teardown and Testing
4-1
TO PREVENT AN ELECTRIC SHOCK, TAKE THE FOLLOWING PRECAUTIONS:
1. BEFORE WIRING:
1) Disconnect the power supply.
2) Open the door and wedge the door open.
3) Discharge the high voltage capacitor and wait for 60 seconds.
2. DO NOT LET WIRE LEADS TOUCH TO THE FOLLOWING PARTS:
1) High voltage parts:
Magnetron, High voltage transformer, High voltage capacitor and High voltage rectifier assembly.
2) Hot parts:
Oven lamp, Magnetron, High voltage transformer and Oven cavity.
3) Sharp edge:
Bottom plate, Oven cavity, Waveguide flange, Chassis support and other metallic plates.
4) Movable parts (to prevent a fault)
Fan blade, Fan motor, Switch, Switch lever, Open button.
3. Do not catch the wire leads in the outer case cabinet.
4. Insert the positive lock connector completely until its pin is locked. Make sure that the wire leads should
not come off even if the wire leads are pulled.
5. To prevent an error function, connect the wire leads correctly, referring to the Pictorial Diagram.
Disconnect oven from power supply before removing outer case.
Discharge high voltage capacitor before touching any oven components or wiring after removing outer
case.
AVOID POSSIBLE EXPOSURE TO MICROWAVE ENERGY. PLEASE FOLLOW INSTRUCTIONS BELOW
BEFORE OPERATING THE OVEN.
1. Disconnect the power supply cord.
2. Make sure that a definite” click” can be heard when the microwave oven door is unlatched. (Hold the
door in a closed position with one hand, then push the door open button with the other, this causes
the latch leads to rise, it is then possible to hear a “click’ as the door switches operate.)
3. Visually check the door and cavity face plate for damage (dents, cracks, signs of arcing etc.).
Carry out any remedial work that is necessary before operating the oven.
DO NOT OPERATE THE OVEN IF ANY OF THE FOLLOWING CONDITIONS EXIST;
1. Door does not close firmly.
2. Door hinge, support or latch hook is damaged.
3. The door gasket or seal is damaged.
4. The door is bent or warped.
5. There are defective parts in the door interlock system.
6. There are defective parts in the microwave generating and transmission assembly.
7. There is visible damage to the oven.
DO NOT OPERATE THE OVEN:
1. Without the RF gasket (Magnetron).
2. If the wave guide or oven cavity are not intact.
3. If the door is not closed.
4. If the outer case (cabinet) is not fitted.

Component Teardown and Testing
4-2
Removing Oven From Wall
Oven is hooked on metal tabs at bottom of wall mounting
plate and fastened to cabinet by (3) top cabinet bolts.
1. Disconnect power cord. For top vented models,
disconnect duct and remove damper assembly.
2. Remove (3) top cabinet bolts.
3. Pull unit forward slowly providing adequate support
to prevent dropping unit during removal of the last top
cabinet bolt.
The oven must be removed from wall when removing the
magnetron, motor assembly, vent blower and high voltage
transformer. (See Figure 4-1)
Grille Removal
The top full-width grille is removable for service to some
components, such as: oven light, oven thermal cut-out,
vent motor capacitor and fuse.
To remove grille:
1. Disconnect oven power.
2. Remove screws (2) from grille outer case.
(See Figure 4-2)
3. Lift off grille.
Outer Case Removal
To remove the outer case, proceed as follows;
1. Disconnect the power supply cord.
2. Open the oven door and block it open.
3. Remove (18) screws from the outer-case.
4. Lift entire outer case from the unit.
1. Disconnect oven from power supply before
removing outer case.
2. Discharge the high voltage capacitor before
touching any oven components or wiring.
Remove 2 grille screws to remove grille.
Figure 4-1. Wall Mounting Components
Figure 4-2. Grille Screws
Oven weights 74 lbs. Requires 2 people for removal.