Amana ACE208 User manual

ThisBaseManualcoversall
CommericalCombination/Convection
MicrowaveOvenswith230/208V,60Hz.
RefertoindividualTechnicalSheet
forinformationonspecificmodels.
RS2220002
Revision0
November2000
Service
Commercial Combination/
Convection Microwave
Oven with 230/208 V, 60 Hz
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.
ServiceManual for
Amana®
®
ACE208
ACE230

RS2220002 Rev. 0 2
WARNING
!
To avoid risk of electrical shock, injury, or death, make
sure these grounding instructions are followed.
Grounding Instructions
WARNING
!
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.
WARNING
!
Precautions to be observed before and during
servicing to avoid possible exposure to excessive
microwave energy, or electrical shock disconnect
power to oven.
Do not operate or allow oven to be operated with
door open.
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
Before turning on microwave power for any service
test or inspection within the microwave generating
compartments, check the magnetron, waveguide or
transmission line, and cavity for proper alignment,
integrity, and connections.
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.
Check microwave leakage to verify compliance with
the federal performance standard should be
performed on each oven prior to release to the
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.
Important Product Information

3 RS2220002 Rev.0
Table of Contents
ImportantProduct Information .......................................2
ImportantInformation ....................................................4
ImportantSafety Information .........................................5
ProductInformation
StrirrerBlade ..........................................................7
Blower/FanAssembly ............................................7
StirrerCover ...........................................................7
DoorInterlockandMonitoringSwitch .....................7
TransformerHighVoltage........................................7
HighVoltageCapacitor ...........................................7
HighVoltageDiode (Rectifier).................................7
Magnetron ..............................................................7
ThermalProtectors .................................................7
Touch Panels..........................................................7
Triacs .....................................................................7
RTD(ResistiveThermalDevice)..............................7
HeatingElements...................................................7
Installation
GroundingInstructions............................................8
UnpackingOven .....................................................8
RadioInterference...................................................8
OvenPlacement .....................................................8
Careand Cleaning
RecommendedMaintainence Schedule..................9
RecommendedCleaning Schedule .........................9
CleaningOven Exterior ...........................................9
CleaningOven Cavity ..............................................9
OvenRacksandRackGuides................................9
Air Filter .................................................................9
DischargeAirVents................................................9
DisplayandFeatures ..................................................10
Programming
ProgrammingPads...............................................13
ProgrammingMultipleStages ..............................13
ProgrammingPreheatSetting ..............................13
ConvectionCooking
ConvectionCooking with ProgrammedPads ........14
ConvectionCookingUsing Manual Time Entry .....14
CombinationCooking(microwave andconvection)
Combination Cookingwith Preprogrammed Pads .15
UsingMaunalTimeEntry .....................................15
CombinationCooking ...........................................15
UserOptions...............................................................16
UserMaintenance
ReplacingOven Light ............................................17
MovingOven RackGuides....................................17
ServiceCodes ......................................................17
Specifications .............................................................18
ComponentTestingProcedures ..................................19
Test Modes
MicrowavePower Test ..........................................23
TemperatureChart ................................................23
ConvectionTemperature Test................................24
Convection Temperature Calibration ......................24
RadiationLeakageTesting ..........................................25
Equipment............................................................25
ProcedureForMeasuring Radiation Leakage .......25
MeasurementWiththeOuterPanel Removed......25
MeasurementWith a Fully Assembled Oven........25
RecordKeeping and
NotificationAfterMeasurement ............................25
DisplayDiagnostics
Error Codes ..........................................................26
ServiceTest ................................................................27
Troubleshooting
Powerup ..............................................................29
Preheat/ConvectionCondition...............................29
Microwave Condition .............................................30
Disassembly
DoorHandle .........................................................31
OuterDoor............................................................31
InnerDoorAssembly ............................................ 31
Hinge ....................................................................31
OuterCase...........................................................32
Back Panel ..........................................................32
StirrerCover .........................................................32
RTD(Resistance ThermalDevice) ........................32
Top TouchPanel Assembly ..................................32
Side Touch Panel Assembly.................................33
HighVoltageCircuit Board ................................... 33
InterlockSwitchModule .......................................33
Adjustment ....................................................33
DisplayModule..................................................... 34
Magnetron ............................................................34
Magnetron,Control, and
FanThermal Cutout(TCO) ....................................34
Triacs ...................................................................34
MicrowaveBlowerWheel andMotor .....................34
FanBlade.............................................................35
Transformer ..........................................................35
Capacitor..............................................................35
HeaterBox ...........................................................35
HeatingElements.................................................35
ConvectionFan andMotor ....................................35
Fuse .....................................................................35
PowerCord ..........................................................36
Light Socket .........................................................36
ReplacingOvenLight Bulb ...................................36
ComponentLocation ...................................................37
Amana • 2800 220thTrail • PO Box 8901 • Amana, Iowa • 52204 • Printed in the U.S.A.

RS2220002 Rev. 0 4
Prideandworkmanshipgointoeveryproducttoprovideourcustomerswithqualityproducts. Itispossible,however,
that during its lifetime a product may require service. Products should be serviced only by a qualified service
technicianwhoisfamiliarwiththesafetyproceduresrequiredintherepairandwhoisequippedwiththeproper tools,
parts, testing instruments and the appropriate service manual. REVIEW ALL SERVICE INFORMATION IN THE
APPROPRIATESERVICEMANUALBEFOREBEGINNINGREPAIRS.
Important Notices for Consumers and Servicers
!
WARNING
To avoid risk of seriousinjury or death, repairs should not be attempted by an unauthorized personal, dangerous
conditions (such as exposure to electrical shock) may result.
CAUTION
!
Amanawillnotberesponsible for any injury or property damage from improper service procedures. Ifprefroming
service on your own product, assume responsibility for any personal injury or property damage which may result.
Tolocate an authorizedservicer,please consultyourtelephone bookorthe dealer fromwhomyou purchasedthis
product. For further assistance, please contact:
CONSUMERAFFAIRS DEPT. OR 1-319-622-5511
AMANAREFRIGERATION,INC. CALL and ask for
AMANA,IOWA 52204 ConsumerAffairs
If outside the United States contact:
AMANA
ATTN: CONSUMERAFFAIRSDEPT
AMANA, IOWA 52204, USA
Telephone: [phone]
Facsimile: [phone]
TELEX: 4330076AMANA
CABLE: "AMANA", AMANA, IOWA, USA
Recognize Safety Symbols, Words, and Labels
DANGER
!
DANGER- Immediate hazards which WILL resultinseverepersonalinjuryordeath.
WARNING
!
WARNING - Hazards or unsafe practices whichCOULD result inseverepersonalinjury or death.
CAUTION
!
CAUTION- Hazards or unsafepracticeswhich COULD result in minorpersonalinjury or product orproperty
damage.
Important Information

5 RS2220002 Rev.0
CAUTION
!
Do not become exposed to radiation from the
microwavegeneratoror other parts conducting
microwaveenergy.
Basic design of this microwave oven makes it an
inherentlysafedevice to both use and service.However,
therearesomeprecautionswhich should be followed
whenservicingmicrowave oven to maintain this safety.
Theseareasfollows:
1. Alwaysoperate unit from anadequatelygrounded
outlet. Do not operate on a two-wire extension cord.
2. Beforeservicing unit (ifunitisoperable)perform
microwaveleakagetest.
3. Ovenshould never beoperatedifdoordoes not fit
properlyagainstseal,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
cleanandfreeof all foreign matter. If anyabove
problems occur take the following steps:
• Tell the user not to operate the oven.
• Contact Amana immediately.
4. Ifoven operates withdooropenand produces
microwaveenergy, take the following steps:
• Tell the user not to operate the oven.
• Contact Amana immediately.
5. Alwayshave 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. Alwaysground capacitors on magnetron filter box and
H.V.capacitor with an insulated-handle screwdriver
beforeworkingin high voltage areaofequipment
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. Inthe area of the transformer, capacitor, diode, and
magnetron there is HIGH VOLTAGE. When unit is
operating,keepareacleanand 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. Microwaveoven should neverbeoperated with:
Important Safety Information • Anycomponentsremoved 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
microwaveleakageand to meet Department of Health
andHumanServices guidelines check oven for
microwaveleakageusing Narda Model 8100,8200,
HoladayHI1500,HI1501, or Simpson 380M leakage
monitor as outlined in instructions. Maximum leakage
levelallowedis4mw/cm2.
11.Ifservicerencounters an emission readingover4mw/
cm2, servicer is to cease repair and contact Amana
ServiceDepartmentimmediately for further direction.
AmanawillcontacttheproperGovernmentAgency
uponverificationoftestresults.
12.Install or locate this equipment ONLY 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
explodeand SHOULD NOT beHEATED in this
equipment.
14.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
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
necessarywhenusedbyCHILDREN.
16.DO NOT operate this equipment if it has a damaged
cord or plug, if it is not working properly, or if it has
beendamaged ordropped.
17.This equipment, including power cord, must be
serviced ONLYby qualified service personnel. Special
toolsarerequiredtoserviceequipment.Contact
nearestauthorizedservicefacilityfor examination,
repair,oradjustment.
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 cordAWAY from HEATED surfaces.
22.DO NOT let cord hang over edge of table or counter.

RS2220002 Rev. 0 6
CAUTION
!
To avoid risk of personal injury or death of fire in the oven cavity:
•DO NOT overcook food. Carefully attend equipment if paper, plastic, or other combustible materials are placed
inside the equipment to facilitate cooking.
• Remove wire twist-ties from paper or plastic bags before placing bag in equipment.
•KEEP equipment DOOR CLOSED, turn equipment off, and disconnect the power cord, or shut off power at
the fuse or circuit breaker panel, if materials inside the equipment should ignite. Fire may spread if door is
opened.
•DO NOT use the cavity for storage purposes. DO NOT leave paper products, cooking utensils, or food in the
cavity when not in use.
Important Safety Information
CAUTION
!
To avoid personal injury or property damage, observe the following:
1. Briskly stir or pour liquids before heating with
microwaveenergyto prevent spontaneous boiling
or eruption. Do not overheat. If air is not mixed into
a liquid, liquid can erupt in equipment or after
removal from equipment.
2. Do not deep fat fry in equipment. 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. Pop popcorn in microwave mode only. If
equipment is preheated or hot, allow equipment to
cool before popping popcorn or bag may ignite.
7. Do not use regular cooking thermometers in
equipment when cooking in microwave or
combination mode. Most cooking thermometers
contain mercury and may cause an electrical arc,
malfunction, or damage to equipment.
8. Do not heat baby bottles in equipment.
9. Do not use metal utensils in equipment except
when recommended by microwave food
manufacturers or recipe requires metal utensils in
convection or combination mode. Heat food in
containers made of glass or china if possible.
10. Never use paper, plastic, or other combustible
materials that are not intended for cooking. If
equipment temperature is high, material may
ignite.
12. Do not use paper towels which contain nylon
or other synthetic fibers. Heated synthetics could
melt and cause paper to ignite.
13. Do not heat sealed containers or plastic bags
in equipment. Food or liquid could expand quickly
and cause container or bag to break. Pierce or
open container or bag before heating.
14. Racks, utensils, and equipment surfaces may
become hot during or after use. Use utensils or
protective clothing, like pan grips or dry oven mitts,
when necessary to avoid burns.
15. Do not use rack position if rack hook breaks.
Replace broken hooks immediately.
16. Do not unplug equipment immediately after use.
Internal fan must cool equipment to avoid damage
of electrical components.

7 RS2220002 Rev. 0
Stirrer Blade
Distributes microwave energy throughout the cavity.
Blower/Fan Assembly
Circulates cooling air throughout the convection or
microwave oven compartment and cavity.
Stirrer Cover
Covers and protects the stirrer 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. It is actuated by door hook and guide
attached to the door.
Monitoring switch (contacts 7 and 8) is actuated by the
door guide.
The secondary interlock switch (contacts 2 and 3) and
primary interlock switch (contacts 4 and 5) are actuated
by the door hook.
The secondary interlock switch is in series with the
interlock monitoring switch in the monitor circuit.
If a malfunction occurs in the secondary 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.
DANGER
!
To 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.
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 Voltage 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 Protectors
At a predetermined temperature the thermal cut-outs will
open or close. The oven will indicate an error code in the
display, initiate cooling fan operation, or prevent the
generation of microwave energy.
• Magnetron thermal cut-out is mounted directly on the
body of the magnetron
• Fan thermal cut-out is mounted directly on the
exhaust duct
• Control thermal cut-out is mounted directly on the
heater box
Touch Panels
Allows consumer operation and programming of oven.
Triacs
Triacs are controlled by high voltage circuit boards.
Triacs control one side of the power line going to the
high voltage power transformer and heating elements.
• Microwave triacs, heating elements A, and B triacs are
mounted inside oven chassis behind oven cavity front
bulkhead
RTD (Resistance Thermal Device)
Senses temperature inside oven cavity.
Heating Elements
Heating elements are used to produce convection heat.
Product Information

RS2220002 Rev. 0 8
Installation
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 label. Models ACE208
require a 208 voltage supply and model ACE230
requires a 230/240 voltage supply. When the
combination oven is on a circuit with other equipment, an
increase in cooking times may be required and fuses
can be blown.
NEMA 6-20R
250V–20AMP
Unpacking Oven
• 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.
• Remove all materials from oven interior.
• If oven has been stored in extremely cold area, wait a
few hours before connecting power.
Radio Interference
Microwave operation may cause interference to radio,
television, or a similar oven. 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 a properly installed antenna on radio, television,
etc. to obtain stronger signal reception.
Oven Placement
• Do not install oven next to or above source of heat,
such as pizza oven
or deep fat fryer. This could cause microwave oven to
operate improperly and could shorten life of electrical
parts.
• Do not block or obstruct oven filter. Allow access for
cleaning.
• Install oven on level countertop surface.
• Place warning label in a conspicuous place close to
microwave oven.
• Outlet should be located so that plug is accessible
when oven is in place.
A
B
AA
A—Allow at least 1 1/4" (3.18 cm) of clearance
around top and sides of oven. Proper air flow
around oven cools electrical components. With
restricted air flow, oven may not operate properly
and life of electrical parts is reduced.
B—Install combination oven so oven bottom is at
least 3 feet (91.5 cm) above floor.

9 RS2220002 Rev. 0
Care and Cleaning
Clean oven frequently to maximize oven life,
performance, and efficiency. A dirty oven cooks
inefficiently because moisture, spills, and grease absorb
convection and microwave energy.
WARNING
!
To avoid electrical shock which can cause severe
personal injury or death, disconnect power to
appliance before cleaning.
CAUTION
!
To prevent personal injury, handle utensils, racks, and
door with care. Utensils, racks, and door may become
hot during operation.
Recommended Maintenance Schedule
Schedule Maintenance Cleaning (Not Covered Under
Warranty)
• Contact an authorized servicer to remove and
clean heater box.
• Schedule appointment every 12 months or when
heavy grease buildup is apparent on back of oven
cavity.
Recommended Cleaning Schedule
Schedule Several Daily Cleanings
• Clean interior, exterior, door, and racks according to
instructions.
• If possible, clean spills immediately.
• Clean air filter and air vents regularly to prevent
overheating.
• Wipe dry after cleaning.
Clean After Use
• Remove oven racks and rack guides, and clean
according to Oven Racks and Rack Guides
instructions.
• Clean exterior according to Cleaning Oven Exterior
instructions.
• Clean oven cavity according to Cleaning Oven Cavity
instructions.
• Wipe dry after cleaning.
Cleaning Oven Exterior
Clean door and other exterior surfaces with a clean
cloth, sponge, or nylon pad using a mild detergent
diluted in warm water. Use commercial degreasers if
heavilysoiled.
• If spraying solutions into oven cavity, protect interior
rear wall from moisture or mist.
• Do not use harsh or abrasive cleaners, or cleaners
containing ammonia.
• Do not use water pressure type cleaning systems.
• Remove excess water from cloth before wiping oven.
Cleaning Oven Cavity
Remove racks and rack guides for best results.
Recommended cleaning solution is Convection
Express Cleaner. Repeat cleaning several times if
necessary. Saturate oven interior surfaces with Amana
Convection Express Cleaner and let sit for 2 to 5
minutes. Rub vigorously with nylon scouring pad to
loosen debris. Wipe clean with warm, damp clean cloth.
NOTE: A plastic putty knife or equivalent may be used
to remove baked on debris.
• Wear protective rubber gloves when cleaning oven.
• Use only a plastic putty knife, nylon scouring pad or
equivalent, to aid in removing soil or build-up from the
oven interior.
•Do not use knife, metal utensil, or steel wool pad to
remove baked on material. This will damage the teflon
coating.
• Refer to warranty for limitations regarding teflon
interior and cleaning requirements.
Oven Racks and Rack Guides
Clean the oven racks and rack guides with a detergent
solution made with warm water. Scrub with a soft nylon
pad to loosen and remove any baked on materials. DO
NOT use a lye based oven cleaner, such as many of
the 'instant' oven cleaners. This will damage the finish
of the oven, the racks, and rack guides.
Air Filter
Air filter must be cleaned regularly to prevent
overheating of oven. The air filter is located directly
below the oven door.
1. Remove the filter retaining screws, located on the
outside edges of the filter.
2. Remove the air filter.
3. Wash filter in a mild detergent solution made with
warm water.
4. Rinse and dry thoroughly.
5. Replace filter and screws.
NOTE: Clean air filter regularly to prevent overheating,
which may damage oven.
Discharge Air Vents
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.

RS2220002 Rev. 0 10
Display and Features
A—Oven Door Handle (Lift to open.)
B—Rack Guides
C—Top Control Panel
Item flashes in display indicating
keypads can be used and cooking
entries can be made. Temperature is displayed in
the time field.
Preheat not ready indicates the
oven is not at preheat temperature.
NOT flashes while the oven heats to
preheat temperature.
450F
STG
COOK
LEVEL
PREHEAT NOT READY STANDBY
ITEM POWER
CM
88 8
1
2
3
4:
Display
D—Display
E—Side Control Panel
G—Air Intake Filter
Oven Features
A
BC
D
E
G

11 RS2220002 Rev. 0
Displays stage the oven is cooking
in during multi-stage cooking cycles.
Power displays when oven is
actively generating microwave
energy. Will not display when set at
0, and will turn on and off when set
less than HI.
Display and Features (cont’d)
STG
COOK
LEVEL
PREHEAT NOT READY STANDBY
ITEM
POWER
CM
88 8
1
2
3
4
450F
:
:
5 45
STG
COOK
LEVEL
PREHEAT NOT READY STANDBY
ITEM
POWER
CM
88
23 8
1
2
3
4
:
STG
COOK
LEVEL
PREHEAT NOT READY STANDBY
ITEM
POWER
CM
88
23 8
9
1
2
3
4
5 45
Item is not
displayed
indicatingkeypad
will not accept
entries. To
activate keypad,
open and close
oven door—Item
will then display.
Convection cooking only.
Combination cooking: both
convection (C) and microwave energy
(M) are used. Cook level displays with the amount
of microwave energy used.
Time left in cooking condition
Displays
menu
number
selected
by user.
Indicates
percentage of
microwave power
(0 to 100%).
9 is 90%,
5 is 50%,
H is High (100%).
Preheat ready displays when
oven has reached the preset
preheat temperature.

RS2220002 Rev. 0 12
PREHEAT
ON / OFF
TIME
TEMP
POWER
LEVEL
STAGE
PROGRAM
SAVE
PREHEAT NOT READY
Start Pad
The start pad is used
to begin a manual
time entry cooking
cycle.
STOP/RESET
pad
The STOP/RESET
pad stops a cooking sequence in
progress, clears out any
remaining time, and also ends a
programming or user option cycle.
When the STOP/RESET pad is
used to end a programming or
option change, the changes are
discarded.
START
STOP
RESET
Cooking Display
DISPLAYS DESCRIPTION
PREHEAT
READY
PREHEAT READY
displays when oven has
reached preheat temperature and is ready to cook.
00:00 Displays cooking time. If stage cooking is
programmed, total cooking time is displayed.
PREHEAT
NOT READY
PREHEAT NOT READY
displays and NOT
flashes when oven is turned on and is warming up
to the selected preheat temperature.
COOK LEVEL
COOK LEVEL
displays the current microwave
power level. HI is the highest setting, and 0 is lowest
(no microwave energy used).
ITEM
ITEM displays the single or double digit entry of a
programmed cooking condition when using a
programmed pad. ITEM also flashes when a
cooking condition can be started or programmed.
STG STG displays with a single number. This is the
stage the oven is at in the cooking condition.
STANDBY
STANDBY
displays when oven is turned off, and
also after the oven is plugged in, the door is
opened, and then shut.
C MCMdisplays when oven is convection cooking.
C M C M displays when oven is cooking using both
microwave energy and convection.
POWER
POWER displays during active microwave
generation in the oven. POWER will not display when
power setting is at 0; and POWER will turn on and off
when microwave energy is set at less than HI.
Programming Display
DISPLAYS DESCRIPTION
Prog Displays when oven is in programming mode for
single pad or double pad memory.
OP: -- Displays when oven is in user option mode. User
options can then be set or specified.
STG
Displays stage number during cooking or when
programming a specific cooking stage. Stage
number (1 through 4) indicates the stage that is
being used.
Temperature warnings
The combination oven has two
distinct temperature warnings:
• A warning when the preheat
temperature does not match the
preprogrammed temperature of a
cooking condition.
• A warning when the actual oven
cavity temperature is not to
preheat temperature, such as
when the oven is first started.
Display and Features (cont’d)

13 RS2220002 Rev. 0
Programming
What is stage
cooking?
Stage cooking enables
several different cooking cycles, or
stages, to be used consecutively
without repeated input from the user.
Stage cooking can be set to to
defrost food initially, then cook it,
and then keep the food warm until
serving time.
STAGE
Programming Preheat
Setting
The convection temperature setting
can be set between 150°F to 475°F.
It is recommended to set the
preheat setting to the most
commonly used temperature for
that oven. The factory default
preheat setting is 450°F.
To program the preheat setting:
1. Press PREHEAT ON/OFF pad.
2. Press PROGRAM SAVE pad.
3. Press TEMP pad.
4. Enter desired temperature by
using the numeric key pads.
5. Preheat temperature is
changed.
Programming Multiple Stages
Stage cooking allows consecutive cooking cycles without interruption.
Up to four different cooking cycles can be programmed into a memory
pad.
To use stage cooking:
1. Follow steps 1 through 6 above.
7. Press STAGE.
• This will begin programming for the next cooking
stage.
• Display indicates stage to be programmed.
• Enter cook time, temp and power level as in steps 4. 5 and 6.
• To enter another cooking stage for that pad, press
STAGE pad again.
• Up to four different stages can be programmed.
8. Press PROGRAM SAVE to save the program and
changes.
9. To discard changes, press STOP/RESET before pressing
PROGRAM SAVE.
STAGE
PROGRAM
SAVE
Programming Pads
Oven is shipped from the factory for single pad programming. To change
the oven default to double pad programming, see User Option section. To
program the amount of time, power level, or temperature setting for a pad.
1. Oven must be ON.
• Press PREHEAT ON/OFF.
• ITEM must flash in display.
2. Press PROGRAM SAVE.
• Programming mode begins.
• PROG displays.
• Oven is in programming mode.
3. Press pad to be programmed or reprogrammed.
• Display will change to review all settings for the pad.
• The pad number that is being programmed displays
below the word ITEM.
4. Press TIME to program amount of cooking time.
• Enter desired cooking time by using numeric key
pads.
5. Press TEMP pad to program the cooking temperature.
• Enter desired convection temperature by using
numeric pads.
6. Press POWER LEVEL to program level of microwave
power.
• Press POWER LEVEL again to set to H (High).
• For a lower microwave power, press pads 1 (for 10%)
through 9 (for 90%). 0 turns off the microwave
power and cooking is by convection only.
7. Press PROGRAM SAVE to save the program changes.
8. To discard changes, press STOP/RESET.
PROGRAM
SAVE
PROGRAM
SAVE
TIME
TEMP
POWER
LEVEL
PREHEAT
ON / OFF
Example of Stage Cooking Conditions
Stage 1 Stage 2 Stage 3
Temp 450°F 450°F 450°F
Power H (high) 3 0
Time 2:30 1:30 1:30

RS2220002 Rev. 0 14
Convection Cooking
CAUTION
!
To avoid risk of burns, handle utensils, racks, and door with care. Allow oven, utensils, and racks to
cool before cleaning. Oven, utensils, and racks, become hot during operation.
To operate the oven for convection cooking only, you can use
preprogrammed pads or manual time entry. The following instructions are
for convection cooking only. For combination cooking, see that section.
Convection Cooking Using Manual Time Entry
1. Press PREHEAT ON/OFF to start the oven.
• Oven begins a preheat cycle.
• PREHEAT NOT READY displays.
• To change preheat settings, see Programming .
2. Oven reaches preheat temperature.
• Signal sounds and PREHEAT READY displays.
3. Press TIME.
• Enter desired cooking time by using the keypad.
4. Press TEMP if cooking temperature is different than
preheat temperature.
• Enter the new temperature.
5. Press POWER LEVEL.
• For convection cooking only, press 0.
6. To activate stage cooking, press STAGE and repeat
steps 3, 4, and 5.
• Up to 4 different stages can be programmed.
7. Press the START pad to begin the cooking cycle.
Convection Cooking with Programmed Pads
1. Press PREHEAT ON/OFF to start the oven.
• Oven begins a preheat cycle.
• PREHEAT NOT READY displays.
• To change preheat settings, see Programming.
2. Oven reaches preheat temperature.
• Signal sounds and PREHEAT READY displays.
3. Press selected pad.
• ITEM must be flashing in display. If not, open and close door.
• If using single pad programming, press pad and oven begins
automatically.
• For double pad programming, press pads in proper sequence and
oven begins automatically.
4. Cooking cycle begins
• Total cooking time is displayed.
• To display the temperature while a program is running, press the
TEMP button and the temperature will briefly display.
5. Oven finishes cooking sequence
• An end of cycle beep signals the end of the cooking cycle.
• Oven interior and cooking dish will be hot.
6. Press PREHEAT ON/OFF to shut off oven.
PREHEAT
ON / OFF
PREHEAT
ON / OFF
TIME
TEMP
POWER
LEVEL
START
Convection Cooking
Convection cooking utilizes both a
convection element and fan to
evenly distribute heated air
throughout the oven cavity. By
circulating air, no hot or cold spots
occur, creating a consistent
temperature envelope around the
food. These consistent temperatures
cook food evenly and reduces
cooking time. Oven will always
operate in convection mode.
All the pad does is
beep.
Ovens are not shipped
preprogrammed. Any preset
cooking conditions must be set by
the customer. If a pad is pressed
that has not been programmed, a
rapid triple beep will sound and no
cooking condition will initiate.

15 RS2220002 Rev. 0
CAUTION
!
To avoid risk of burns, handle utensils, racks, and door with care. Allow oven, utensils, and racks to
cool before cleaning. Oven, utensils, and racks, become hot during operation.
Combination Cooking (microwave and convection)
Combination Cooking
The combination mode uses both
the speed of microwave energy
and browning of convection
cooking to yield fast, high quality
food.
• Microwave cooking uses high
frequency energy waves to heat
the food. When cooking,
microwave energy causes food
molecules to move rapidly. This
rapid movement between the food
molecules creates heat, which
cooks the food. POWER displays
when oven is generating
microwave energy for the current
cycle.
• Convection cooking uses the
selected oven temperature to bake
and brown foods. The circulating
air surrounds food in an envelope
of evenly heated air.
• Oven will maintain a minimum
convection temperature of 150°F
(66°C) to ensure drier air and
more even cooking.
To operate the oven for combination cooking, you can use preprogrammed
pads or manual time entry. The following instructions are for
combination cooking only. For convection only cooking, see that section.
Using Manual Time Entry
1. Press PREHEAT ON/OFF to start the oven.
• Oven begins a preheat condition.
• PREHEAT NOT READY displays with NOT flashing.
• To change the preheat temperature, see Programming .
2. Oven reaches preheat temperature.
• Signal sounds and PREHEAT READY displays.
3. Press TIME.
• Enter desired cooking time by using numeric keypad.
4. Press TEMP if cooking temperature differs from preheat
temperature.
• Enter the new temperature.
5. Press POWER LEVEL.
• To have microwave power on HIGH, press the
POWER LEVEL pad again. H displays.
• For a lower microwave power, press pads 1 (for
10%) through 9 (for 90%). 0 turns off the microwave
power and cooking is by convection only.
6. If stage cooking is desired, press STAGE and repeat
steps 3, 4, and 5.
• Up to 4 different stages can be programmed.
7. Press the START pad to begin the cooking cycle.
Combination Cooking with Preprogrammed Pads
1. Press PREHEAT ON/OFF to start the oven.
• Oven begins a preheat condition.
• PREHEAT NOT READY displays with NOT flashing.
• To change preheat temperature, see Programming
section.
2. Oven reaches preheat temperature.
• Signal sounds and PREHEAT READY displays.
3. Press desired pad.
• For double pad programming, press pads in proper sequence.
• Oven begins automatically.
4. Cooking cycle begins
• Total cooking time is displayed.
• To display the temperature while a program is running, press the
TEMP button and the temperature will briefly display.
5. Oven finishes cooking sequence
• An end of cycle beep signals the end of the cooking cycle.
Oven interior and cooking dish will be hot.
6. Press PREHEAT ON/OFF to shut off oven.
PREHEAT
ON / OFF
PREHEAT
ON / OFF
TIME
TEMP
POWER
LEVEL
START

RS2220002 Rev. 0 16
User Options
Changing user options
Options such as single or double pad programming, beep volume, and
maximum cooking time can be changed to suit individual preferences.
To change options, oven must display STANDBY.
1. Press hidden pad.
• Pad is unmarked and located to the direct left of PREHEAT ON/OFF
pad.
• Nothing will be displayed when hidden pad is pressed.
2. Press PROGRAM SAVE pad.
• 0P: displays. Oven is now in options mode.
3. Press number pad that controls option to be changed.
• See table below for options.
• Current option will display.
4. Press number pad again to change the option.
• Each time pad is pressed, option will change.
• Match code displayed with code for desired option.
5. Press PROGRAM SAVE pad to save changes.
• To change additional options, repeat steps 3 and 4.
• Changes take affect after PROGRAM SAVE pad is pressed.
6. Press STOP/RESET to return to STANDBY, or open and close oven
door.
EXPRESS
CONVECTION
PREHEAT
ON / OFF
TIME
HIDDEN
PAD
Didn’t like an option?
Factory settings are marked in bold.
To change the oven back to the
factory setting, simply select the
option that is marked in bold.
My changes weren’t saved.
In order for any changes to be
saved, the PROGRAM SAVE pad
must be pressed after selecting an
option. Pressing the
STOP/RESET pad will not save
changes.
Numbered Pads Display Options (Factory Settings in Bold)
1
Preprogrammed Pads
OP:10
OP:11
Allows 10 (0-9) preprogrammed pads.
Allows 100 (00-99) preprogrammed pads.
2
Manual Time Entry OP:20 OP:21 Manual time entry/cooking not allowed Manual time entry/cooking allowed
3
Reset to READY mode
OP:30
OP:31
Opening oven door does not reset oven back to ready mode
Opening oven door resets the oven back to ready mode
4
Keybeep OP:40 OP:41 Keys do not beep when pressed (keybeep off) Keys beep when pressed (keybeep on)
5
Keybeep Volume
OP:50
OP:51
OP:52
OP:53
Keybeep volume OFF
Keybeep volume low
Keybeep volume medium
Keybeep volume high
6
Food Done Signal
OP:60
OP:61
OP:62
OP:63
Food done signal is a continuous beep until reset by user
Food done signal is a three second beep
Food done signal is four beeps, one time only
Food done signal is four beeps, four times
7
Keypad Time Entry
OP:70
OP:71
OP:72
OP:73
Keypad time entry window is 15 seconds
Keypad time entry window is 30 seconds
Keypad time entry window is one minute
Keypad time entry window is two minutes
8
Temperature Warnings
OP:80
OP:81
OP:82
OP:83
Both temperature warnings off
Warning only when preheat temperature does not match preprogrammed temperature
Warning only when actual oven cavity temperature is not to preheat temperature
Both temperature warnings on
TEMP PAD
Temperature Scale
OP:bo
OP:b1
°F
°C

17 RS2220002 Rev. 0
User Maintenance
WARNING
!
To avoid risk of burns or electrical
shock:
• disconnect electrical supply to
oven before changing light bulb.
• before replacing light bulb make
sure oven and bulb are cool.
• do not operate oven without bulb
and access cover in place.
CAUTION
!
Wear gloves to protect hands
from accidental bulb breakage.
Replacing Oven Light
1. Disconnect electrical supply.
2. Remove screw from access cover on top left wall of
oven exterior.
3. While wearing protective gloves, unscrew the light
bulb counterclockwise.
4. Replace light bulb with 230-volt (rated 250V), 40-watt
appliance bulb.
• Do not over tighten bulb or it may be difficult to
remove later.
5. Replace light bulb cover and access cover before use.
6. Reconnect power supply.
Service codes
During operation, the oven may display one of the following codes. If this
should occur:
1. Unplug oven and leave unplugged for approximately one minute. Plug
oven in and see if code reappears.
• If code does not reappear, continue normal use with the oven.
2. If service code reappears, write down the service code displayed and
contact the nearest authorized Amana Servicer.
• Do not use oven until contacting the Amana Servicer.
Moving Oven Rack Guides
The oven rack guides can be moved to one of three positions within the oven,
allowing for versatility in cooking and placement of food. The middle rack
position is the most common. Guides can also be removed for easier cleaning.
To remove rack guides:
1. Oven cavity must be cool to touch.
2. Remove oven rack by lifting up and sliding to the front of the oven.
3. Apply gentle pressure by pulling upwards on the front of rack guide.
4. Lift the rear of the rack guide to remove. Guide may be snug.
To replace rack guides:
1. Oven cavity must be cool to touch.
• UP on guide rack should be in correct direction for placement.
2. Place rear of rack guide over desired anchor in back of oven and push
down.
3. Place front of rack guide over desired anchor in front of oven.
• Apply firm pressure to front and rear of rack guide to fit onto anchor.
• Fit may be tight.
• Rack guide should not move after being set in place.
4. Replace oven rack as desired.
• Slide oven rack towards rear of oven, holding upwards to avoid detents.
• Oven rack can be placed upwards or downwards. Upwards is
recommended.
• Oven rack must be seated in detents.
Error Codes
Err1
err2
err3
err4
err5
err6
err7

RS2220002 Rev. 0 18
Specifications
MODEL ACE*** (*** indicates model number)
Power Source ACE208 ACE230
Voltage AC 208 VAC 230 VAC
Frequency 60 Hz
Amperage 20 A
Power
Frequency 2450 MHz
Nominal Microwave Energy (IEC705) 1000 Watts
Power Consumption Combination: 3300 watts Convection only: 2700 watts
Power Cord Length 5' 6" (168 cm)
Oven Cavity Dimensions inches (cm) 13" (33 cm) x 10½" (27 cm) x 15" (38 cm)
Net Weight 112lbs. (51 kg)
Oven Cavity Capacity 1.2 Cu. Ft. (34 L)
Receptacle and plug NEMA 6-20R
Product specifications can change at any time without notice.
19 1/4"
or
49 cm
18"
or
46 cm
21 1/8"
or
54 cm
38 1/4"
or
97 cm

Component Testing Procedures
!
WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor
before servicing, unless testing requires it.
RS2220002 Rev. 019
Illustration Component Test Results
Thermal cutout Disconnect all wires from TCO.
Measure resistance across terminals.
Control TCO..........................................
Fan TCO...............................................
Magnetron TCO....................................
Open at 300°F (149°C) and closed at
257°F (125°C)
Closed at 160°F (71°C ) and open at
125°F (52°C)
Open at 235°F (113°C) and closed at
150°F (66°C)
Diode Discharge Capacitor
Remove diode lead from capacitor and
connect ohmmeter.
Reverse leads for second test.
Infinite resistance should be measured
in one direction and 50KΩor more in
the opposite direction.
NOTE: Ohmmeter must contain a
battery of 6 volts minimum.
MT2
MT1 GATE
Triac Disconnect wires to triac.
Measure resistance from:
MT1 to MT2 ..........................................
MT1 to Gate..........................................
MT2 to Gate..........................................
All terminals to ground..........................
Caution - Do not operate oven with
wire to terminal MT2 removed.
Infinite
Approximately 15 Ω, then reverse
meter leads 30 Ω
Infinite
Infinite
Triac 1 (top) is for front element
Triac 2 (middle) is for rear element
Triac 3 (bottom) is for microwave
Measure voltage from:
MT1 to Gate 0.8 VAC when energized If no voltage,
check H.V. board and wiring.
Capacitor Discharge Capacitor
Remove wires from capacitor terminals and
connect ohmmeter, set on highest
resistance scale to terminals.
Also check between each terminal and
capacitor case.
Between Terminals: Meter should
momentarily deflect towards zero then
return to over 5 MΩ. IF no deflection
occurs, or if continuous deflection
occurs, replace capacitor.
Terminal to Case: Infinite resistance
Snubber assembly Disconnect wires to snubber.
Measure resistance across terminals. Infinite
Magnetron Discharge Capacitor
Remove wires from magnetron and connect
ohmmeter to terminals. Also check
between each terminal and ground.
Between Terminals: Less than 1 Ω
Each terminal to ground measures
Infinite resistance.
Note: This test is not conclusive. If
oven does not heat and all other
components test good replace the
magnetron and retest.
Microwave blower
motor Remove all wires from motor.
Measure resistance across coil. Approximately 33 Ω

Component Testing Procedures
!
WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor
before servicing, unless testing requires it.
RS2220002 Rev. 0 20
Illustration Component Test Results
4
COM
230
208
5
6Transformer Discharge Capacitor
Remove all wires from terminals.
Measure resistance from:
230 to COM
208 to COM
230 to Ground
208 to Ground
Terminal 5 to 6
Terminal 4 to Ground
Less than 1 Ω
Less than 1 Ω
Infinite
Infinite
Less than 1 Ω
Approximately 70 Ω
7
8
2
4
3
5
Interlock switch
Door Closed
2
4
7
3
5
8Primary
Secondary
Monitor
Disconnect wires to switch.
With door open measure resistance from:
Terminal 2 to 3
Terminal 4 to 5
Terminal 7 to 8
With door closed measure resistance from:
Terminal 2 to 3
Terminal 4 to 5
Terminal 7 to 8
Infinite
Infinite
Indicates continuity
Indicates continuity
Indicates continuity
Infinite
AB
Convection blower
motor Remove wires from motor.
Measure resistance across
terminals A and B. Approximately 20 Ω
Heating element
assembly Disconnect wires from terminals.
Measure resistance across heating
element.
Front element 1200 W ......................
Rear element 1500 W ......................
Indicates continuity
ACE208 ACE230
35 Ω43 Ω
29 Ω35 Ω
Resistance thermal
device (RTD) Temperature
32°F
350°F
Resistance
1000 Ω
1654 Ω
Lamp receptacle Test continuity of receptacle terminals. Indicates continuity with bulb
screwed in.