This Base Manual covers Commercial
Microwave Ovens with 120/230 V, 60 Hz.
Refer to individual Technical Sheet for
information on specific models.
This manual includes, but is not limited to
the following:
This manual is to be used by qualified appliance
technicians only. Amana does not assume any
responsibility for property damage or personal
injury for improper service procedures done by an
unqualified person.
RS2230003
Revision 2
December 1998
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Important Product Information
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WARNING
Precautions to be observed before and during
servicing to avoid possible exposure to excessive
microwave energy .
(A) Do not operate or allow 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:
• Interlock operation
• Proper door closing
• Seal and sealing surfaces (arcing, wear, and
other damage)
• Damage to or loosening of hinges and latches
• 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 oven is released to
the consumer.
(E) Check microwave leakage to verify compliance
with the Federal Performance Standard should be
performed on each oven prior to release to the
consumer.
WARNING
To avoid risk of electrical shock, injury, or death, make
sure these grounding instructions are followed.
Grounding Instructions
WA RN IN G
Do not remove grounding prong when installing
grounded appliance in a home or business that does
not have three wire grounding receptacle, under no
condition is grounding prong to be cut off or removed.
It is the personal responsibility of the consumer to
contact a qualified electrician and have properly
grounded three prong wall receptacle installed in
accordance with appropriate electrical codes
Should a two prong adapter plug be required temporarily
it is the personal responsibility of the consumer to have
it replaced with properly grounded three prong
receptacle or the two prong adapter properly grounded
by a qualified electrician in accordance with appropriate
electrical codes.
Servicing of Grounded Products
The standard accepted color coding for grounding wires
is GREEN or GREEN WITH YELLOW STRIPE. These
ground leads are NOT to be used as current carrying
conductors. It is extremely important that the technician
replace any and all grounds prior to completion of the
service call. Under no condition should ground wire be
left off causing a potential hazard to technicians and
consumer.
WIRING
Good service practice is to never route wiring over
terminals and/or sharp edges. This applies to any wiring
without regard to the circuit voltage. Wire insulation
material and thickness is designed and regulated for
electrical spacing purpose only , but cannot always be
relied upon because of possible cuts and/or abrasions,
which can occur during servicing.
RS2230003 Rev. 22
Table of Contents
Important Product Information ..................................... 2
T able of Contents ........................................................ 3
Impo rtant I nform ation .................................................. 4
Important Safety Information ....................................... 5
Amana Appliances • 2800 220thTrail • Amana, Iowa • 52204-0001 • Printed in the U.S.A.
3RS2230003 Rev. 2
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Important Information
Pride and workmanship go into every product to provide our customers with quality products. It is possible, however,
that during its lifetime a product may require service. Products should be serviced only by a qualified service
technician who is familiar with the safety procedures required in the repair and who is equipped with the proper tools,
parts, testing instruments and the appropriate service manual. REVIEW ALL SERVICE INFORMATION IN THE
APPROPRIATE SERVICE MANUAL BEFORE BEGINNING REPAIRS.
Important Notices for Consumers and Servicers
WARNING
T o avoid risk of serious injury or death, repairs should not be attempted by an unauthorized personnel, dangerous
conditions (such as exposure to electrical shock) may result.
CAUTION
Amana will not be responsible for any injury or property damage from improper service procedures. If prefroming
service on your own product, assume responsibility for any personal injury or property damage which may result.
To locate an authorized servicer, please consult your telephone book or the dealer from whom you purchased this
product. For further assistance, please contact:
DANGER -Immediate hazards which WILL result in severe personal injury or death.
WA RNIN G
WARNING - Hazards or unsafe practices which COULD result in severe personal injury or death.
CAUTION
CAUTION - Hazards or unsafe practices which COULD result in minor personal injury or product or property
damage.
RS2230003 Rev. 24
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Important Safety Information
CAUTION
Do not become exposed to radiation from the
microwave generator or other parts conducting
microwave energy .
Basic design of this microwave oven makes it an
inherently safe device to both use and service. However,
there are some precautions which should be followed
when servicing microwave oven to maintain this safety .
These are as follows:
1. Always operate unit from an adequately grounded
outlet. Do not operate on a two-wire extension cord.
2. Before servicing unit (if unit is operable) perform
microwave leakage test.
3. Oven should never be operated if door does not fit
properly against seal, hinge/hinge bearings are
damaged or broken; choke is damaged, (pieces
missing, etc.); or any other visible damage can be
noted. Check choke area to ensure that this area is
clean and free of all foreign matter. If any above
problems occur take the following steps:
• Tell the user not to operate the oven.
• Contact Amana mmediately .
4. If oven operates with door open and produces
microwave energy , take the following steps:
• Tell the user not to operate the oven.
• Contact Amana immediately .
5. Always have oven disconnected when outer case is
removed except when making "live" tests called for
in the service manual. Do not reach into equipment
area while unit is energized. Make all connections
for the test and check them for tightness before
plugging cord into outlet.
6. Always ground capacitors on magnetron filter box
and H.V. capacitor with an insulated-handle
screwdriver before working in high voltage area of
equipment compartment. Some types of failures will
leave a charge in capacitors and the discharge could
cause a reflex action which could make you injure
yourself.
7. In the area of the transformer, capacitor, diode, and
magnetron there is HIGH VOLTAGE. When unit is
operating, keep area clean and free of anything
which could possibly cause an arc or ground, etc.
8. DO NOT for any reason defeat interlock switches,
there is no valid reason for this action at any time;
nor will it be condoned by Amana.
9. Microwave oven should never be operated with:
• Any components removed and/or bypassed
• Any of the safety interlocks are found to be
defective
• Any of the seal surfaces are defective, missing, or
damaged
10.To ensure that unit does not emit excessive
microwave leakage and to meet Department of
Health and Human Services guidelines check oven
for microwave leakage using Narda Model 8100,
8200, Holaday HI1500, HI1501, or Simpson 380M
leakage monitor as outlined in instructions.
Maximum leakage level allowed is 4mw/cm2 .
11.If servicer encounters an emission reading over
4mw/cm2, servicer is to cease repair and contact
Amana Service Department immediately for further
direction. Amana will contact the proper government
agency upon verification of test results.
12.Install or locate this equipment ONL Y in accordance
with the installation instructions in this manual.
13.Some products such as whole eggs and sealed
containers – for example, closed glass jars – may
explode and SHOULD NOT be HEA TED in this
equipment.
14.Use this equipment ONL Y for its intended use as
described in this manual. Do not use corrosive
chemicals or vapors in this equipment. This type of
equipment is specifically designed to heat or cook. It
is not designed for industrial or laboratory use.
15.As with any equipment, CLOSE SUPERVISION is
necessary when used by CHILDREN.
16.DO NOT operate this equipment if it has a damaged
cord or plug, if it is not working properly , or if it has
been damaged or dropped.
17.This equipment, including power cord, must be
serviced ONLY by qualified service personnel.
Special tools are required to service equipment.
Contact nearest authorized service facility for
examination, repair, or adjustment.
18.DO NOT cover or block any openings on the
equipment.
19.DO NOT store this equipment outdoors. DO NOT
use this product near water – for example, near a
kitchen sink, in a wet basement, or near a swimming
pool, and the like.
20.DO NOT immerse cord or plug in water.
21.Keep cord AWAY from HEATED surfaces.
22.DO NOT let cord hang over edge of table or counter.
5RS2230003 Rev. 2
Important Safety Information
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CAUTION
To avoid personal injury or property damage, observe the following:
1. Briskly stir or pour liquids before heating with
microwave energy to prevent spontaneous boiling
or eruption. Do not overheat. If air is not mixed
into a liquid, liquid can erupt in oven or after
removal from oven.
2. Do not deep fat fry in oven. Fat could overheat and
be hazardous to handle.
3. Do not cook or reheat eggs in shell or with an
unbroken yolk using microwave energy . Pressure
may build up and erupt. Pierce yolk with fork or
knife before cooking.
4. Pierce skin of potatoes, tomatoes, and similar
foods before cooking with microwave energy . When
skin is pierced, steam escapes evenly .
5. Do not operate equipment without load or food in
oven cavity .
6. Use only popcorn in packages designed and
labeled for microwave use. Popping time varies
depending on oven wattage. Do not continue to
heat after popping has stopped. Popcorn will
scorch or burn. Do not leave oven unattended.
7. Do not use regular cooking thermometers in oven.
Most cooking thermometers contain mercury and
may cause an electrical arc, malfunction, or
damage to oven.
8. Do not heat baby bottles in oven.
9. Do not use metal utensils in oven.
10. Never use paper, plastic, or other combustible
materials that are not intended for cooking.
11. When cooking with paper , plastic, or other
combustible materials, follow manufacturer's
recommendations on product use.
12. Do not use paper towels which contain nylonor
other synthetic fibers. Heated synthetics could melt
and cause paper to ignite.
13. Do not heat sealed containers or plastic bags
in oven. Food or liquid could expand quickly and
cause container or bag to break. Pierce or open
container or bag before heating.
14. To avoid pacemaker malfunction, consult physician
or pacemaker manufacture about effects of
microwave energy on pacemaker .
PRECAUTIONS TO AVOID POSSIBLE EXPOSURE
TO EXCESSIVE MICROWA VE ENERGY
a. DO NOT attempt to operate this oven with the door
open since open-door operation can result in
harmful exposure to microwave energy . It is
important not to defeat or tamper with the safety
interlocks.
b. DO NOT place any object between the oven front
face and the door or allow soil or cleaner residue to
accumulate on sealing surfaces.
RS2230003 Rev. 16
c. DO NOT operater the oven if it is damaged. It
particularly important that the oven door close
properly and that there is no damage to the: (1) door
(bent), (2) hinges and latches (broken or loosened),
(3) door seal and sealing surface.
d. The oven should NOT be adjusted or repaired by
anyone except properly qualified service personnel.
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Important Safety Information
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Recognize this symbol as a SAFETY message
WARNING
When using electrical equipment, basic safety precautions should be followed to reduce the risk of burns, electrical
shock, fire, or injury to persons.
1. READ all instructions before using equipment.
2. READ AND FOLLOW the specific
“PRECAUTIONS TO AVOID POSSIBLE
EXPOSURE TO EXCESSIVE MICROW AVE
ENERGY”.
3. This equipment MUST BE GROUNDED. Connect
only to properly GROUNDED outlet. See
“GROUNDING INSTRUCTIONS”.
4. Install or locate this equipment ONL Y in
accordance with the installation instructions in this
manual.
5. Some products such as whole eggs and sealed
containers – for example, closed glass jars – may
explode and SHOULD NOT be HEA TED in this
oven.
6. Use this equipment ONLY for its intended use as
described in this manual. Do not use corrosive
chemicals or vapors in this equipment. This type of
oven is specifically designed to heat or cook. It is
not designed for industrial or laboratory use.
7. As with any equipment, CLOSE SUPERVISION is
necessary when used by CHILDREN.
8. DO NOT operate this equipment if it has a
damaged cord or plug, if it is not working properly,
or if it has been damaged or dropped.
9. This equipment, including power cord, must be
serviced ONLY by qualified service personnel.
Special tools are required to service equipment.
Contact nearest authorized service facility for
examination, repair, or adjustment.
10. DO NOT cover or block filter or other openings
on equipment.
11. DO NOT store this equipment outdoors. DO NOT
use this product near water – for example, near a
kitchen sink, in a wet basement, or near a
swimming pool, and the like.
12. DO NOT immerse cord or plug in water.
13. Keep cord AWAY from HEA TED surfaces.
14. DO NOT let cord hang over edge of table or
counter.
15. See door cleaning instructions in “Care and
Cleaning” section.
16. For commercial use only.
CAUTION
To reduce the risk of fire in the oven cavity:
a. DO NOT overcook food. Carefully attend equipment
if paper , plastic, or other combustible materials are
placed inside the oven to facilitate cooking.
b. Remove wire twist-ties from paper or plastic bags
before placing bag in oven.
c. KEEP oven DOOR CLOSED, turn oven off, and
disconnect the power cord, or shut off power at the
fuse or circuit breaker panel, if materials inside the
oven should ignite. Fire may spread if door is
opened.
d. DO NOT use the cavity for storage. DO NOT leave
paper products, cooking utensils, or food in the
cavity when not in use.
7RS2230003 Rev. 1
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Product Information
Antenna Blade
Distributes microwave energy throughout the cavity .
Blower/Fan Assembly
Circulates cooling air throughout the microwave oven
compartment and cavity .
Grease Shield
Covers and protects the antenna blade assembly .
Door Interlock and Monitoring Switch
NOTE: When the line fuse is blown the Interlock Switch
Assembly must be replaced.
Interlock switch assembly mounts behind oven cavity
front bulkhead. Switches are actuated by the door
hooks.
Monitoring switch (contacts COM and NC) is actuated by
the top door hook.
The primary interlock switch (contacts COM and NO) is
actuated by the top door hook.
The logic switch (contacts COM and NO) is actuated by
the bottom door hook.
The secondary interlock switch (contacts COM and NO)
is actuated by the bottom door hook.
If a malfunction occurs in the primary interlock when door
opens, current will flow through the monitor switch
causing the oven fuse to open.
If a faulty door interlock switch has allowed current
through the monitor switch, the switch assembly must be
replaced (see interlock switch testing) before replacing
fuse.
Auto T ransformer
Auto transformer in this unit provides a voltage of 120,
208, or 230 V AC.
Transformer High Voltage
High voltage transformer is used in this unit, which
supplies high voltage A.C. for operation of the magnetron
tube.
High Voltage Capacitor
Doubles the A.C. output voltage from the high voltage
transformer.
High V oltage Diode (Rectifier)
Is connected at the output side of the high voltage
capacitor. It changes voltage from A.C. to D.C. It passes
current in one direction and blocks it in the other. Also
called a rectifier.
Magnetron
With filament voltage and high D.C. voltage from the
output of the H.V . capacitor , diode junction, the
magnetron will put out an electomagnetic radio frequency
of 2450 MHz to heat the food load in the oven.
Thermal Cutout Protectors
At a predetermined temperature, the thermal cut-outs will
open.
• Magnetron thermal cut-outs are mounted directly on
the body of the magnetron.
• Cavity thermal cut-out is mounted directly on the left
side of cavity exterior.
DANGER
T o avoid severe personal injury or death avoid
contacting any high voltage parts. The capacitors are
at high voltage (4000 volt) potential and it is extremely
important that they be grounded before handling.
RS2230003 Rev. 18
Touch Panels
Allows consumer operation and programming of oven.
Triac
Triac is controlled by control board. Triac controls one
side of the power line going to the high voltage power
transformer.
• Triac is mounted inside oven chassis behind oven
cavity front bulkhead, towards rear of unit in front of
blower motor, underneath insulator .
Stirrer Motor
Stirrer motor rotates top antenna assembly .
Installation
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Unpacking Oven
• Remove packing and printed material from oven
cavity .
• Inspect oven for damage such as dents
in door or inside oven cavity .
• Report any dents or breakage to source of
purchase immediately. Do not attempt to use oven if
damaged.
• If oven has been stored in extermely cold area, wait a
few hours before connecting power.
Oven Placement
• Do not install oven next to or above source of heat,
such as pizza oven or deep fat fryer. Excessive
heat may cause oven to operate improperly and
shorten life of electrical parts.
• Restricted air flow may cause oven to operate
improperly and shorten life of electrical parts.
• Install according to all local building codes and
ordinances.
Radio Interference
Microwave operation may cause interference to radio,
television, or similar equipment. Reduce or eliminate
interference by doing the following:
• Clean door and sealing surfaces of oven
according to instructions in "Care and Cleaning"
section.
• Place radio, television, etc. as far as possible from
oven.
• Use properly installed antenna on radio, television,
etc. to obtain stronger signal reception.
Grounding Instructions
NOTE: Do not under any circumstances cut or remove
grounding prong from the plug or bend power
prongs to fit receptacle other than one shown for
your equipment. Such abuse of the plug can
result in electrical shock or overheating.
WARNING
Improper use of grounding plug can result in a risk of
electrical shock or death.
This equipment MUST be grounded. In the event of an
electrical short circuit, grounding reduces risk of electric
shock by providing an escape wire for electric current.
This oven is equipped with a cord having grounding wire
with a grounding plug. Plug must be plugged into an
outlet that is properly installed and grounded. DO NOT
use a two-prong adapter .
Consult a qualified electrician or servicer if grounding
instructions are not completely understood, or if doubt
exists as to whether the equipment is properly grounded.
Do not use an extension cord. If product power cord is
too short, have a qualified electrician install an
appropriate receptacle. This equipment should be
plugged into a separate 60 Hz circuit with the appropriate
electrical rating as shown in the drawings. When an oven
is on a circuit with other equipment, an increase in
cooking times may be required and fuses can be blown.
NEMA 5-20R/5-20P
120V–20AMP
9RS2230003 Rev. 1
NEMA 6-20R/6-20P
230V/208V–20AMP
Care and Cleaning
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Changing Oven Light Bulb
CAUTION
T o avoid electrical shock hazard unplug power cord or
open circuit breaker to microwave oven before replacing
light bulb. After replacing light bulb, reconnect power .
CAUTION
T o avoid burns and cuts, wear gloves to protect hands
should bulb break. If hot, allow bulb to cool.
Tools and Bulb
• Protective gloves
• Standard screwdriver or ¼ inch socket
• Light bulb rated 120 volt, 25 watt
1. Unplug oven.
2. Remove screws from back of oven and remove access
cover.
• See figure below .
4. Remove bulb by turning counterclockwise, being
careful not to burn fingers or break bulb.
• Replace with bulb rated 120 volt, 25 watt.
5. Slide rail into oven cavity, replace access cover and
screws. When installing screws attach rail to access
cover first, for easier installation.
6. Plug in oven.
Cleaning Interior , Exterior, and Door
WARNING
T o avoid electrical shock which can cause severe
personal injury or death, unplug power cord or open
circuit breaker to oven before cleaning.
Clean microwave oven with mild detergent in warm water
using soft sponge or cloth. Wring sponge or cloth to
remove excess water before wiping equipment. If desired,
boil a cup of water in microwave oven to loosen soil
before cleaning.
• Do not use abrasive cleansers or cleaners containing
ammonia. These could damage finish.
• Never pour water into microwave oven bottom.
• Do not use water pressure type cleaning systems.
3. Slide rail out oven from oven cavity.
• See figure below .
RS2230003 Rev. 110
Cleaning Splatter Shield
Splatter shield keeps top of microwave oven cavity and
antenna from becoming soiled. Clean soil from shield
with damp cloth or clean with mild detergent and water .
Remove splatter shield for easy cleaning.
1. Unplug oven before removing splatter shield to stop
antenna from rotating.
2. Place fingers behind shield, pull forward, and down.
• When removing and replacing splatter shield, be
careful not to bend antenna.
!
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Care and Cleaning
3. Wash shield in hot, soapy water . Rinse and
dry thoroughly .
• Do not wash splatter shield in dishwasher.
• Do not use abrasive cleaners.
4. Reinstall splatter shield by placing front portion of the
shield in first. Lift until shield slides into holes
located in back of oven.
Correct Installation
CAUTION
T o avoid oven door damage, do not lift oven by oven
door.
Filter is located below oven door . Clean air intake filter
weekly for proper air flow. W ash filter in hot water and
mild detergent. Do not use oven without filter in place.
Remove filter to clean.
Method 1
1. Open oven door and lift front of oven by pushing up on
front of oven cavity ceiling.
2. Slide filter down and out of oven frame.
• Pull down on corners of filter.
3. Reverse procedure to reinstall.
Incorrect Installation
(Shield in upside down)
NOTE: If splatter shield is installed upside down, shield
will interfere with antenna movement.
Cleaning Air Intake Filter
Method 2
1. Slide filter to left or right until side of filter frame clears
oven frame.
2. Pull side of filter frame out of oven frame and slide
right or left until clear of oven.
3. Reverse procedure to reinstall.
Cleaning Discharge Air V ents
Check for a buildup of cooking vapors along discharge
louvers in back of oven. Clean air vent with damp cloth to
ensure proper airflow . Dry thoroughly.
CAUTION
T o avoid overheating and oven damage, clean air filter
regularly.
11RS2230003 Rev. 1
Discharge
air vent
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