Amana MVH140E User manual

Models and manufacturing
numbers in this manual
MVH140E P1319501M
MVH140W P1319502M
MVH240E P1319503M
MVH240W P1319504M
MVH240L P1319505M
MVH340E P1319506M
MVH340W P1319507M
MVH340L P1319508M
RS2100005
Revision 0
September 1998
Over The Range
Domestic Microwave Ovens
Service
Service Manual for
Amana®
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.

RS2100005 Rev. 0 2
Important Product Information
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
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.
(A) Do not operate or allow oven to be operated with
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,
waveguide 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.
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.

3 RS2100005 Rev. 0 3
Important Product Information...................................... 2
Table of Contents ......................................................... 3
Important Information ................................................... 4
Important Safety Information ........................................ 5
Radiation Leakage Testing ........................................... 6
Installation Instructions MVH140, 240, and 340 ........... 7
Parts, Tools, and Materials........................................ 9
Preparing Electrical Connection.............................. 10
Preparing Venting System....................................... 10
Preparing Venting Blower........................................ 12
Preparing Wall and Upper Cabinet ......................... 13
Attaching Oven to the Wall...................................... 15
General Information
Location of Model Number ...................................... 17
Model Identification ................................................. 17
Parts and Accessories ............................................ 17
Service .................................................................... 17
Asure™ Extended Service Plan .............................. 17
Oven Specifications ................................................ 17
Electrical Rating ...................................................... 17
Electrical Requirements .......................................... 17
Grounding Instructions ............................................ 18
Microwave Oven Description .................................. 18
Care and Cleaning
Cleaning the Grease Filters .................................... 19
Charcoal Filter Replacement .................................. 19
Cooktop/Night Light Replacement.............................. 20
Oven Light Replacement......................................... 20
Testing Procedures
Primary Interlock Switch Test.................................. 21
Secondary Interlock Switch Test ............................. 21
Interlock Monitor Switch Test .................................. 21
Magnetron ............................................................... 21
High Voltage Transformer ....................................... 22
High Voltage Capacitor ........................................... 22
High Voltage Diode ................................................. 22
Humidity Sensor...................................................... 22
Relay ....................................................................... 22
Control Key Panel ................................................... 23
Circuit Board ........................................................... 24
Fuse ........................................................................ 24
Oven Thermostat .................................................... 24
Base Thermostat..................................................... 24
Troubleshooting Procedures ...................................... 25
Disassembly Procedures
Grille........................................................................ 30
Door Assembly........................................................ 30
Door Disassembly ................................................... 30
Control Panel .......................................................... 31
P.C. Board ............................................................... 31
Control Key Panel ................................................... 32
Outer Case.............................................................. 32
Stirrer Assembly...................................................... 33
Stirrer Motor (MVH240 and MVH340) ..................... 33
Interlock Door Latch Switches ................................ 34
High Voltage Capacitor ........................................... 35
Diode....................................................................... 35
Transformer ............................................................ 35
Noise Filter Board ................................................... 35
Fuse ........................................................................ 35
Magnetron ............................................................... 36
Magnetron Fan Assembly ....................................... 36
Magnetron Thermal Fuse........................................ 36
Humidity Sensor...................................................... 37
Oven Thermostat .................................................... 37
Base Thermostat..................................................... 37
Light Socket ............................................................ 37
Turntable Motor....................................................... 38
Vent Blower ............................................................. 38
Probe Receptacle ................................................... 38
Wiring Diagrams And Schematics ............................. 39
Appendix A
Programming Instructions MVH140 .......................A-2
Appendix B
Programming Instructions MVH240 .......................B-2
Appendix C
Programming Instructions MVH340 .......................C-2
Amana Appliances Inc. • 2800 220thTrail • Amana, Iowa • 52204 • Printed in the U.S.A.
Table of Contents

RS2100005 Rev. 0 4
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,testinginstrumentsandtheappropriateservicemanual. REVIEWALLSERVICEINFORMATION
IN THE APPROPRIATE SERVICE MANUAL BEFORE BEGINNING REPAIRS.
Important Notices for Consumers and Servicers
!
WARNING
To avoid risk of serious injury or death, repairs should not be attempted by an unauthorized personal, 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 performing
service on your own product, assume responsibility for any personal injury or property damage which may result.
Tolocate an authorizedservicer, pleaseconsult yourtelephone bookor thedealer fromwhom youpurchased this
product. For further assistance, please contact:
CONSUMER AFFAIRS DEPT. OR 1-319-622-5511 or (1-800-843-0304)
AMANA APPLIANCES, INC. CALL and ask for
AMANA, IOWA 52204 Consumer Affairs
If outside the United States contact:
AMANA
ATTN: CONSUMER AFFAIRS DEPT
2800 220TH TRAIL
AMANA, IOWA 52204–0001, USA
Telephone: [phone]
Facsimile: [phone]
TELEX: 4330076 AMANA
CABLE: "AMANA", AMANA, IOWA, USA
Recognize Safety Symbols, Words, and Labels
DANGER
!
DANGER—Immediate hazards which WILL result in severe personal injury or death.
WARNING
!
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.
Important Information

5 RS2100005 Rev. 0
CAUTION
!
Read the following information to avoid possible
exposure to microwave radiation:
The basic design of the Amana microwave oven makes
it an inherently safe device to both use and service.
However, there are some precautions which should be
followed when servicing the microwave oven to maintain
this safety. These are as follows:
1. Always operate the unit from an adequately
grounded outlet. Do not operate on a two-wire
extension cord.
2. Before servicing the unit (if unit is operable) perform
the microwave leakage test.
3. The oven should never be operated if the door does
not fit properly against the seal; the hinges or hinge
bearings are damaged or broken; the choke is
damaged, (pieces missing, etc.); or any other visible
damage can be noted. Check the choke area to
ensure that this area is clean and free of all foreign
matter.
4. If the oven operates with the door open and
produces microwave energy, take the following
steps.
A. Tell the user not to operate the oven.
B. Contact Amana Refrigeration, Inc.
immediately.
5. Always have the oven disconnected when the outer
case is removed except when making the "live" tests
called for in the Service Manual. Do not reach into
the equipment area while the unit is energized.
Make all connections for the test and check them for
tightness before plugging the cord into the outlet.
6. Always ground the capacitors on the magnetron filter
box and H. V. Capacitor with an insulated-handle
screwdriver before working in the high voltage area
of the equipment compartment. Some types of
failures will leave a charge in these 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 the unit
is operating - keep this area clean and free of
anything which could possibly cause an arc or
ground, etc.
8. Do not for any reason defeat the interlock switches–
there is no valid reason for this action at any time;
nor will it be condoned by Amana.
9. IMPORTANT: Before returning a microwave to a
customer, check for proper switch interlock action.
The primary and secondary switches MUST open
when the door is actuated. The monitor switch
MUST close at a 1/4 inch when the door is opened.
10.Before returning a microwave to a customer, verify
the door spacing is reasonably uniform along the
top, bottom, and sides and that it measures 1/8 inch
or less.
11.The Amana microwave oven should never be
operated with:
• Any components removed and/or bypassed.
• Any of the safety interlocks are found to be
failed.
• Any of the seal surfaces are defective, missing,
or damaged.
12.To ensure that the unit does not emit excessive
microwave leakage and to meet the Department of
Health Human Service guidelines, check the oven
for microwave leakage using Narda Model 8100,
8200, Holaday HI1500, HI1501 or Simpson 380M
leakage monitor as outlined in the instructions. The
maximum leakage level allowed is 4mW/cm2.
13.If servicer encounters an emission reading over
4mw/cm2the servicer is to cease repair and contact
the Amana Service Department immediately for
further direction. Amana Refrigeration, Inc. will
contact the proper Government Agency upon
verification of the test results.
Important Safety Information

RS2100005 Rev. 0 6
Radiation Leakage Testing
WARNING
!
Check for radiation leakage after servicing. Should the
leakage be more than 4mW/cm2inform Amana
Refrigeration, Inc. immediately. After repairing or
replacing any radiation safety device, keep a written
record for future reference, as required by DHHS and
HEW regulations. This requirement must be strictly
observed. In addition, the leakage reading must be
recorded on the service repair ticket while in the
customer’s home.
Equipment
• Electromagnetic radiation monitor
• 600 cc glass beaker
Procedure For Measuring Radiation
Leakage
Note before measuring -
• Do not exceed meter full scale deflection. Leak
monitor should initially be set to the highest scale.
• To prevent false readings, the test probe should be
held by the grip portion of the handle only.
• The scan speed is equal to one inch per antenna
revolution or one inch per second if antenna speed is
unknown.
• Areas to be checked are all door seal areas and any
venting parts.
• Leakage with the outer panel removed...4mW/cm2or
less.
• Leakage for fully assembled oven with door normally
closed ...4mW/cm2or less.
• Leakage for a fully assembled oven (before the latch
switch (primary) is interrupted) while pulling the door ...
4mW/cm2or less.
1 . Pour 275 ±15 cc (9 oz ±1/2 oz) of 20 ±5°C (68 ±9°F)
water in a beaker which is graduated to 600 cc and
place the beaker in the center of oven.
2. Set the radiation monitor to 2450 MHz and use it
following the manufacturer’s recommended test
procedure to assure correct results.
3. While measuring the leakage, always use the 2–inch
(5 cm) spacer supplied with the probe.
4. Press the start pad or turn on the timer and with the
magnetron oscillating, measure the leakage by
holding the probe perpendicular to the surface being
measured.
Measurement With the Outer Panel
Removed
DANGER
!
Avoid contacting any high voltage components.
Whenever you replace the magnetron, measure for
radiation leakage before the outer panel is installed and
after all necessary components are replaced or
adjusted. Special care should be taken in measuring
around the magnetron.
Measurement With a Fully Assembled Oven
After all components, including the outer panel are fully
assembled, measure for radiation leakage around the
door periphery, the door viewing window, the exhaust
opening, and air inlet openings.
Record Keeping and Notification After
Measurement
1. After any adjustment or repair to a microwave oven,
a leakage reading must be taken. Record this
leakage reading on the repair ticket even if it is zero.
2. A copy of the repair ticket and the microwave
leakage reading should be kept by the repair facility.

Installation Instruction
7 RS21000005 Rev. 0
Proper installation is the installer’s responsibility!
Write the model & serial numbers on the owner’s
manual. The model number label is located on the oven
front.
Model Number Label
The mounting plate is located on the back side of the
microwave oven.
Mounting
plate
( Remove from
back of oven)
The dimensions of the oven are as follows:
Height : 16 7/16 inches
Width : 29 15/16 inches
Depth : 15 3/8inches
Weight : 58 pounds
CAUTION
!
You will need two people to install this oven. It is
heavy and could cause personal injury if not handled
properly.
Avoid Electrical Shock!
• Before you drill into the wall, note where electrical
outlets are and where electrical wires might be
concealed behind the wall. YOU COULD GET AN
ELECTRIC SHOCK if you contact electrical wires
with your drill bit.
• Locate and disconnect the power to any electrical
circuits that could be affected by installing this oven.
IF YOU DO NOT DISCONNECT THE POWER,
YOU COULD GET AN ELECTRIC SHOCK.
Electrical rating of this oven: 120V AC 60Hz.
• 11.9 A / 1350 W (Microwave oven only)
• 12.9 A / 1460 W (Microwave oven, Cooktop Lamps,
Ventilation Fan)
• You need a DEDICATED 120V, 60Hz, AC only, 15 or
20A, fused electrical supply (located in the cabinet
above the microwave as close as possible to the
microwave) serving only the microwave.
WARNING
!
If you use the grounding plug improperly, you risk
electric shock!
• Check with a qualified electrician if you are not sure
whether the oven is properly grounded or if you do not
completely understand the grounding instructions.
• Do not use a fuse in the neutral or grounding circuit.
WARNING
!
Improper grounding could result in electric shock or
other personal injury.
• Save these instructions for the local electrical
inspector’s use.
• This appliance must be grounded!
• If there is an electrical short circuit, grounding
reduces the risk of electrical shock by providing an
escape wire for the electric current. This appliance
is equipped with a cord having a grounding wire with
a grounding plug.
• Place the plug into a properly installed and grounded
outlet.
• Do not use an extension cord.
• Keep the power cord dry and do not pinch or crush
it.
• Do not, under any circumstances, remove the power
supply cord grounding prong!
• This appliance MUST be grounded!
Properly Polarized and
Grounded Outlet
Three-Pronged (Grounding) Plug

Installation Instruction
RS21000005 Rev. 0 8
WARNING
!
If you do not use the microwave oven as instructed,
you could be exposed to excessive microwave
energy.
Do not expose yourself to excessive microwave
energy!
• DO NOT try to operate the microwave oven with the
door open.
• DO NOT tamper with or defeat the safety interlocks.
• DO NOT place objects between the microwave oven
front face and the door.
• DO NOT allow soil or cleaner residue to build up on
the flat surfaces around the microwave oven door.
• DO NOT operate the microwave oven if it is damaged.
• The microwave oven door must close properly to
operate safely.
• DO NOT USE THE MICROWAVE OVEN:
• If the door is bent.
• If the hinges or latches are broken or loose.
• If the door seals, sealing surfaces or glass is
broken.
• DO NOT ATTEMPT TO ADJUST OR REPAIR THE
OVEN YOURSELF!
• It should be adjusted and repaired by a qualified
technician who can check for microwave leakage
after repairing the oven.
WARNING
!
If you do not mount the oven as instructed, you risk
personal injury and/or property damage.
CAUTION
!
Before you begin installing the oven, PLACE A PIECE
OF THE CARTON OR OTHER HEAVY MATERIAL (a
blanket) over the countertop or cooktop to protect it.
Do not use a plastic cover. Failure to protect these
surfaces could result in property damage.
Make sure you have enough space and support.
• Mount the oven against a flat, vertical wall, so it is
supported by the wall. The wall should be constructed
of minimum 2" x 4" wood studding and 3/8" thick
drywall or plaster/lath.
• ATTACH AT LEAST ONE of the two lag screws
supporting the oven to a vertical, 2" x 4" wall stud.
• DO NOT mount the microwave oven to an island or
peninsula cabinet.
• BE SURE the upper cabinet and rear wall structures
are able to support 150 lbs., plus the weight of any
items you place inside the oven or upper cabinet.
• Locate the oven away from strong draft areas, such as
windows, doors, and strong heating vents.
• BE SURE you have enough space. See illustration
below for minimum vertical and horizontal clearance.
• This microwave oven can be installed over gas or
electric cooking products no more than 36 inches
wide.
30" min. cabinet
opening width
30" min. clearance from bottom
of cabinet to cooking surface
or countertop
14" min. microwave oven
to cooking surface or
countertop
Maximum gas or electric
cooking product width of
36 inches.
(Use templates included
with installation instructions)
Grounded Outlet
(inside upper cabinet)
Power Supply Cord Hole

Installation Instruction
9 RS21000005 Rev. 0
Parts, Tools, and Materials
The following parts are supplied with the oven:
NOTE: Depending on ventilation requirements, not all parts will be used.
Backdraft damper / duct connector
(for roof-venting or wall-venting installation)
Not Actual Size ( 2 pieces must be
assembled as shown )
Two self - tapping screws
(for attaching the damper duct connector)
One lock pin and one washer-
One power cord clamp and
One dark-colored mounting screw
One power cord clamp bushing -
(for the cord hole in a metal upper cabinet)
Four 1/4" x 2" lag screws -
(for wall stud holes)
Two 1/4" x 2" bolts -
(for securing to the upper cabinet)
Two washers -
(for the two upper cabinet bolts)
Four spring toggle heads -
(for the toggle bolts)
Four 1/4" x 3" toggle bolts -
(for drywall holes)
(to hold the power cord)
Actual Size
NOTE: Install at two lag screws into one 2” X 4” stud and four anchor bolts into the wall.
The mounting area must meet the 150 lbs. weight requirement.
Tools and materials required for installation:
NOTE: Use the carton or heavy material for covering the counter top.
NOTE: Ductwork required for installation is not included. All wall and roof caps must have a back-draft damper.

Installation Instruction
RS21000005 Rev. 0 10
Preparing Electrical Connection
WARNING
!
To avoid risk of electrical shock, this appliance must
be grounded.
1. Locate grounded electrical outlet for oven in the
cabinet above the oven.
NOTE: Outlet should be on a circuit dedicated to the
microwave oven (120 VAC, 60 Hz) with a 15 or
20 Amp fused electrical supply.
NOTE: If proper wall outlet is not present, one must be
installed by a qualified electrician.
2. Power supply cord hole will be cut later when
preparing the wall and upper cabinet.
Grounded Outlet
(inside upper cabinet)
Power Supply Cord Hole
Upper
Cabinet
NOTE: Do not use extension cord. Keep power cord dry
and do not pinch or crush.
Preparing Venting System
Oven may be vented in one of three ways.
NOTE: Do not vent oven into a wall cavity, an attic or an
unused area.
WARNING
!
To avoid risk of fire, personal injury or property
damage, oven must be properly vented.
NOTE: Duckwork needed for outside ventilation is not
included with oven.
Roof-Venting
Oven is located on an outside wall near roof.
Roof Venting
Through-the-roof
3 1/4"x10"
duct
Roof cap
Roof venting
6"
Diameter
round duct
3 1/4" to round
duct transition
Roof cap
Wall Venting
Oven is located on an outside wall of house.
Wall Venting
Wall venting Through-the-wall
Wall cap
3 1/4"x10"
duct
3 1/4" to round
duct transition
Wall cap
Elbow

Installation Instruction
11 RS21000005 Rev. 0
Room Venting
Oven is located on an inside wall of house.
Room Venting
NOTE: Remember the following when installing venting.
• Keep length of ductwork and the number of
elbows to a minimum to ventilate oven
efficiently.
• Keep the size of the ductwork the same.
• Do not install two elbows together.
• Use duct tape to seal all joints in the ductwork
system.
• Use caulking to seal exterior wall or roof
opening around the cap.
Standard Fittings
NOTE: If existing ductwork is round, a rectangular-to-
round adapter must be used with a rectangular
3" extension duct installed between the damper
assembly and adapter to prevent the exhaust
damper from sticking.
Ductwork Length
The total length of the ductwork system, including
straight duct, elbows, transitions, and wall or roof cap
must not exceed the equivalent of 140 feet.
For best performance, do not use more than three 90°
elbows and keep the length as short as possible.
Following are standard fittings and their equivalent
length in feet.
1
4567
23
3 1/4"x10"
to 6"=5ft.
90 elbow
=10ft. 45 elbow =5ft.
3 1/4"x10"
wall cap
=40ft.
3 1/4"x10"
flat elbow
=10ft.
3 1/4"x10" roof
cap=24ft. 3 1/4"x10" 90 elbow=25ft.
To calculate the equivalent length of each duct piece
used, see examples below.
For 3 1/4"x10" Systems
1-3 1/4" x 10" 90 elbow
1-Wall Cap
8 feet straight duct
Total Length
6ft.
2ft.
3 1/4"x10"
90 elbow wall cap
= 25 ft.
= 40 ft.
= 8 ft.
= 73 ft.
1-transition
2-90 elbows
1-Wall Cap
8 feet straight
Total Length
For 6" Round Systems
2ft.
6ft.90 elbows
transition
wall cap
= 5 ft.
= 20 ft.
= 40 ft.
= 8 ft.
= 73 ft.

Installation Instruction
RS21000005 Rev. 0 12
Preparing Venting Blower
WARNING
!
To avoid risk of electrical shock or personal injury,
disconnect power to unit before working on vent
blower.
NOTE: Do not pull or stretch blower wiring. Pulling or
stretching blower wiring could result in electrical
wiring damage.
Microwave oven is shipped with blower assembly for
roof venting. If wall or room venting installation is
desired, blower assembly must be changed.
1. Remove screws securing mounting plate to oven
cabinet and set side.
2. Replace screws back into oven cabinet.
B
B
Replace screws
into cabinet.
Remove
mounting
plate.
Roof Venting Installation
Blower venting is assembled at the factory for roof
venting. Proceed to “Wall and Upper Cabinet
Installation” section.
Wall Venting Installation
1. Remove blower unit mounting screw and blower
plate screws (save screws for step 8). Remove
blower plate from cabinet.
Blower plate
mounting screws
Blower unit
mounting screw
Blower
unit
Blower
plate
B
B
2. Carefully lift blower unit out of oven cabinet.
3. Disconnect blower motor terminal plug from wire
harness.
4. Rotate blower unit so exhaust ports face the rear of
the cabinet.
Blower
unit
Exhaust
ports
5. Reconnect blower motor terminal plug, making sure
the wire is under the supporter.
Supporter
Blower
wire
6. Place blower unit back into cabinet. Verify exhaust
ports face towards the rear and are aligned with the
holes in the back of the unit.
Exhaust
ports
7. Remove knockouts marked B (see step 1 for
illustration) from blower plate and discard. Be
careful not to distort blower plate.
8. Attach blower plate to cabinet with exhaust ports and
blower plate opening aligned. Secure blower unit
with screws that were removed in step 1.
Room Venting Installation (Recirculating)
1. Remove blower unit mounting screw and blower
plate screws (save screws for step 5). Remove
blower plate from cabinet.
Blower plate
mounting screws
Blower unit
mounting screw
Blower
unit
Blower
plate
B
B
2. Carefully lift blower unit out of oven cabinet.
3. Rotate blower unit 90° so that exhaust ports face the
front of the cabinet.

Installation Instruction
13 RS21000005 Rev. 0
4. Place blower unit back into cabinet. Verify exhaust
ports face towards the front of the unit.
5. Attach blower plate to cabinet. Secure blower unit
with screws that were removed in step 1.
Preparing Wall and Upper Cabinet
CAUTION
!
To avoid property damage cover countertop or
cooktop by placing a piece of cardboard from the
carton or a heavy piece of material. Do not use
plastic.
• Remove shipping material and parts from inside the
microwave oven.
• Cover countertop or cooktop with a thick protective
covering, to protect it from damage and dirt.
A thick, protective
covering
NOTE: For easy access to wall and upper cabinet,
remove range from wall to allow easier
measuring and drilling.
Preparing Template Placement
1. Find and mark the vertical center line on the back
wall, using a tape measure and plumb line.
2. Find and mark placement of one or two points
indicating stud location on the wall.
• Measure and mark stud location within the area
marked Hon the wall template.
• If wall studs cannot be located, consult a local
building contractor.
WARNING
!
To avoid risk of property damage or personal injury,
do not attempt to install microwave oven if wall studs
cannot be located.
3. Align plumb line on wall with center line on the wall
template.
• Verify minimum width is 30" and the distance from
the top of wall template to the range or countertop
is at least 30".
4. Secure wall template to the wall.
• If cabinets are not level, adjust the wall template
to align with cabinet.
• Oven must hang level. If the front edge of the
cabinet is lower than the back edge, adjust wall
template to be level with the cabinet front.
Upper cabinet template
Wall template
5. Measure the bottom of the upper cabinet frame. Trim
the edges A, B, and Con the upper cabinet
template, so template will fit on the bottom of the
upper cabinet. If upper cabinet has a recessed
frame, trim the template to fit inside the recessed
area. Align the centerline of the upper cabinet
template with the centerline on the wall template.
Secure upper cabinet template in place.

Installation Instruction
RS21000005 Rev. 0 14
Drilling Holes in the Wall and Upper Cabinet
WARNING
!
To avoid electrical shock or personal injury, be very
careful when drilling holes into the wall. Electrical
wires may be concealed behind the wall covering.
1. Find the points on the wall template labeled D, E, F,
and G. Drill a 3/16" diameter hole at any points
located over a wall stud. Drill 3/4" diameter hole at
any point over the wall without studding.
2. Drill holes into studded areas marked Hand Ion the
wall template using a 3/16" drill bit. If wall studs are
not located within these areas, drill 3/4" holes nearest
to the center of the areas as possible.
NOTE: If there are no wall studs within the areas
marked Hand I, or behind points marked D, E,
F, and G, do not install microwave oven.
(Consult a building inspector.) There must be at
least one wall stud in the marked areas.
3. Drill a 3/8" hole at points J, K, and Non upper cabinet
template.
NOTE: If the bottom of the cabinet is recessed 3/4" or
more, filler block (not included) will be required
to provide additional support for the bolts.
Cabinet front Filler block Cabinet
bottom shelf
• Mark the center of each filler block needed
and drill a 3/8" hole through the block.
• Align the filler blocks with openings in the top
of the microwave oven cabinet and attach to
the cabinet with tape.
Filler
block
4. Cut or drill a 2" hole at the area marked M, for power
cord access into upper cabinet.
NOTE: If upper cabinet is metal, cover the edges of the
hole to prevent damage to the power cord.
WARNING
!
To avoid electrical shock or personal injury, cover
edges on metal cabinet to prevent damage to power
cord.
5. Cut out the venting area required for installation.
• Roof vented: Cut out shaded area marked Lon
the upper cabinet template.
• Wall vented: Cut out shaded area marked Oon
the wall template.
• Room vented: Proceed to “Installing Mounting
Plate” section.
6. Use caulking compound to seal the exterior wall or
roof opening around the wall or roof cap.
Installing Mounting Plate
1. Remove templates from wall and upper cabinet.
Mounting plate
Damper must be on top of
tab for proper venting.
NOTE: If venting through the wall, verify alignment of
damper on the rear of the mounting plate moves
freely.
2. Place toggle bolts through mounting plate holes
where 3/4" holes were drilled. Attach spring toggle
head on each toggle bolt.
Toggle bolt Mounting plate
Spring
toggle head
3. Place mounting plate against the wall aligning toggle
bolts with holes. Support tabs

Installation Instruction
15 RS21000005 Rev. 0
NOTE: Leave at least the wall thickness of space to
allow spring toggle head to open once placed
into the wall.
Wall
Mounting plate
Toggle bolt Spring
toggle head
4. Locate wall stud holes and insert lag screws through
mounting plate and into 3/16" holes, do not tighten .
Lag screw Mounting pate
5. Insert toggle bolts through wall surface and tighten.
Tighten lag screws at this point also.
6. Slide washer onto the lock pin and place inside the
upper cabinet for further use.
Lock pin Washer
Attaching Oven to the Wall
WARNING
!
This unit is an excessive weight hazard, which can
cause personal injury or property damage. Two or
more people are required to lift unit. To prevent injury
or property damage, use proper lifting and carrying
techniques when moving unit.
1. Carefully lift microwave oven and hang it on support
tabs at the bottom of the mounting plate. Reaching
through upper cabinet, thread power supply cord
through cutout in the bottom of the upper cabinet.
Power cord
Power cord
hole
2. Rotate the microwave upward until oven is against
the bottom of the upper cabinet or cabinet frame.
3. Drop the lock pin and washer assembly into hole N,
and push the pin downward as far as it will go.
Washer Lock pin
4. Insert 3" X 1/4" bolts and washers down into holes J
and K. Tighten the bolts until the gap between the
microwave and cabinet has closed.
5. Remove the lock pin and washer. If wall or roof
venting installation is used, skip to step 8.

Installation Instruction
RS21000005 Rev. 0 16
6. Roof-vented installation: Align the damper/duct
connector with the vent on top of the microwave
oven. Damper should be on top of tab. Use two
tapping screws (bright-colored) to attach damper/
duct connector to the microwave oven.
damper
NOTE: Damper/duct connector must be attached to
microwave oven after microwave oven is
installed.
7. Roof venting installation: Install ductwork through the
vent opening in the upper cabinet. Complete the
venting system through the roof according to the
method needed. See, Preparing Venting System
section. Use caulking to seal the exterior roof
opening around the exhaust cap.
8. Use the power supply cord clamp to bundle the
power supply cord. Install the power supply cord
clamp inside the cabinet.
duct power
supply
cord
clamp
9. Grasp filter screen with one hand holding the ring
and the other hand holding the opposite end. Insert
the end of the filter screen without ring into the
opening and slide towards the side of the microwave
oven. Insert ring end of filter screen into the opening
and slide entire screen towards the center of the
microwave until screen is securely in position.
Repeat for other filter screen.
10.Plug in the power supply cord.

17 RS21000005 Rev. 0
General Information
Please read the owner’s manual information. It will tell
how to use all the features of this microwave oven.
Location of Model Number
To request service information or replacement parts, the
service center will require the complete model number of
your microwave oven. The number is located on the
oven front as shown in the illustration below.
Model Number Label
Model Identification
Complete enclosed registration card and promptly
return. If registration card is missing, call Consumer
Affairs Department at 1-800-843-0304 inside U.S.A. or
319-622-5511 outside U.S.A. When contacting Amana,
provide product information located on rating plate.
Record the following:
Model Number:
Manufacturing Number:
Serial or S/N Number:
Date of purchase:
Dealer’s name and address:
Parts and Accessories
Purchase replacement parts and accessories over the
phone. To order accessories for your Amana product,
call 1-800-843-0304 inside U.S.A. or 319-622-5511
outside U.S.A.
Service
Keep a copy of sales receipt for future reference or in
case warranty service is required. Any questions or to
locate an authorized servicer, call 1-800-NAT-LSVC (1-
800-628-5782) inside U.S.A. or 319-622-5511 outside
U.S.A. Warranty service must be performed by an
authorized servicer. Amana, also recommends
contacting an authorized servicer if service is required
after warranty expires.
Asure™ Extended Service Plan
Amana offers long-term service protection for this new
oven. Asure™ Extended Service Plan is specially
designed to supplement Amana’s strong warranty. This
plan covers parts, labor, and travel charges. Call 1-800-
528-2682 for information.
Oven Specifications
Output Power 900W (IEC 705 Standard)
Outer Dimensions 29-15/16” x 16-7/16” x 15-3/8”
CavityVolume 1.3 cu. ft.
Net Weight 58 lbs.
Electrical Rating
·Electrical Rating of the Oven: 120V AC, 60Hz
·11.9A/1350 W (MWO Only)
·12.9A/1460W (MWO + Cooktop Lamp + Ventilation
Fan)
Electrical Requirements
The oven is designed to operate on a Standard 120V/
60Hz household outlet. Be sure the circuit is at least 15
or 20A and the microwave oven is the only appliance on
the circuit. It is not designed for 50Hz or any circuit other
than a 120V/60Hz circuit.

RS21000005 Rev. 0 18
General Information
Grounding Instructions
This appliance must be grounded. If an electrical short
circuit occurs, grounding reduces the risk of electric
shock by providing an escape wire for the electric
current. The cord for this appliance has a grounding wire
with a grounding plug. Put the plug into an outlet that is
properly installed and grounded.
WARNING
!
To avoid risk of electric shock, personal injury or
death, use grounding plug properly.
Ask a qualified electrician if you do not understand the
grounding instructions or if you wonder whether the
appliance is properly grounded.
Because this appliance fits under the cabinet, it has a
short power-supply cord. See the Installation
Instructions for directions on placing the cord properly.
Keep the electrical power cord dry and do not pinch or
crush it in any way.
Properly Polarized and
Grounded Outlet
Three-Pronged (Grounding) Plug
For a permanently connected appliance: This appliance
must be connected to a grounded, metallic, permanent
wiring system, or an equipment grounding conductor
should be run with the circuit conductors and connected
to the equipment grounding terminal or lead on the
appliance.
Microwave Oven Description
Door handle
Model and serial
number plate
Window with
metal shield Glass turntable
Cooking guide
Vent grille
Oven control
panel
Cooktop/countertop light
Grease filter
Door safety
lock system

19 RS21000005 Rev. 0
Care and Cleaning
For best performance and safety, keep the oven clean
inside and outside. Take special care to keep the inner
door panel and the oven front frame free of food or
grease build-up.
Never use abrasive cleaners or pads. Wipe the
microwave oven inside and out, including the hood
bottom cover, with a soft cloth and a warm (not hot) mild
detergent solution. Then rinse and wipe dry. Use a
chrome cleaner and polish on chrome, metal, and
aluminum surfaces. Wipe spatters immediately with a
wet paper towel, especially after cooking chicken or
bacon. Clean your oven weekly or more often, if needed.
Cleaning the Grease Filters
The grease filters should be removed and cleaned often,
at least once a month.
1. To remove grease filters, slide each filter to the side.
Pull filters downward and push to the other side. The
filter will drop out.
2. Wash in dishwasher or soak grease filters in hot
water and a mild detergent. Rinse well and shake to
dry. Do not use ammonia. The ammonia will darken
the filter.
3. To reinstall the filters, slide it into the side slot, then
push up and toward oven center to lock.
CAUTION
!
To avoid risk of property damage, do not operate the
hood vent system without the filters in place.
Charcoal Filter Replacement
If the oven is vented inside the room, the charcoal filter
should be replaced every 6 to 12 months, and more
often if necessary. The charcoal filter cannot be cleaned.
To order a new charcoal filter, contact the Parts Depart-
ment at your nearest Authorized Service Center or call
Amana at 1-800-843-0304 (inside U.S.A.)
1-319-622-5511 (outside U.S.A.). Order Charcoal Filter
Kit #: MVHRK2.
1. Disconnect power to oven.
2. Remove the two vent grille mounting screws. (2
middle screws)
3. Tip the grille forward, then lift out.

RS21000005 Rev. 0 20
Care and Cleaning
4. Remove old filter.
5. Slide new charcoal filter into place. The filter should
rest at the angle shown.
6. Slide the bottom of the vent cover into place. Push
the top until it snaps into place. Replace the
mounting screws. Turn the power back on and set
the clock.
Cooktop/Night Light Replacement
1. Unplug the oven or turn off power at the main power
supply.
2. Remove the bulb cover mounting screws.
3. Replace bulb(s) with 30 or 40 watt appliance bulb(s).
4. Replace bulb cover.
5. Turn the power back on at the main power supply.
Oven Light Replacement
1. Unplug oven or turn off power at the main power
supply.
2. Remove the vent cover mounting screws. (2 middle
screws)
3. Tip the cover forward, then lift out to remove.
4. Remove bulb holder mounting screw.
5. Lift up the bulb holder.
6. Replace bulb with a 30 or 40 watt appliance bulb.
7. Replace the bulb holder and mounting screw.
8. Slide the bottom of the vent cover into place. Push
the top until it snaps into place. Replace the
mounting screws. Turn the power back on at the
main power supply.