Please read this manual thoroughly before attempting to
install, operate or service this equipment.
Prior to servicing this equipment, please refer to the
SAFETY INSTRUCTIONS contained in this manual for
important safety information.
Models Covered: ARX1, ARX1BL, ARX2, ARX2BL
MRX1, MRX1BL, MRX2, MRX2BL
16400033
December 2018
Table of Contents
Model Identication........................................................................................................................................................5
Important Safety Instructions ......................................................................................................................................... 7
General Safety Instructions ........................................................................................................................................... 9
Theory of Operation.....................................................................................................................................................12
Sequence of Operation................................................................................................................................................12
Grounding and Installation...........................................................................................................................................15
Place Oven on Counter .............................................................................................................................................15
Power On Oven, Preheat ........................................................................................................................................... 19
Power O Oven .........................................................................................................................................................19
Methods of Cooking and Programming .....................................................................................................................19
First Time Use ............................................................................................................................................................ 19
Set User Options ...................................................................................................................................................... 19
Cooking with Preprogrammed Menu Items................................................................................................................20
Save a Menu Item from Manual Cook: .....................................................................................................................23
Manually Edit an Existing Menu Item: ........................................................................................................................ 23
Oven Programming: USB Flash Drive ......................................................................................................................... 26
Export Menu via USB Flash Drive .............................................................................................................................26
Open Menu in ACP Programming Application ...........................................................................................................26
Import Menu via USB Flash Drive..............................................................................................................................26
Oven Programming: Wi-Fi and Ethernet .....................................................................................................................27
Connect Oven to Network .......................................................................................................................................... 27
To connect via Wi-Fi ................................................................................................................................................. 27
To connect via Ethernet ............................................................................................................................................ 27
Connect Computer to Oven via Wi-Fi/Ethernet..........................................................................................................27
Transfer Recipe Information via Wi-Fi/Ethernet ......................................................................................................... 27
Log-in Information ....................................................................................................................................................27
Care and Cleaning.......................................................................................................................................................29
For a new oven, before using it for the rst time ...................................................................................................... 29
User Options ...............................................................................................................................................................32
Access and Modify User Options .............................................................................................................................. 32
Default User Options .................................................................................................................................................. 33
Before Calling for Service ............................................................................................................................................ 38
Service Test Mode ...................................................................................................................................................... 39
With the PIN Code enabled .......................................................................................................................................39
Table of Contents (continued)
With the PIN Code not enabled .................................................................................................................................39
Power Test .................................................................................................................................................................42
Set Up: .....................................................................................................................................................................42
Microwave Leak Test .................................................................................................................................................43
Top Panel ...................................................................................................................................................................48
Side Panels ................................................................................................................................................................48
Removal and Replacement ......................................................................................................................................49
Removal and Replacement........................................................................................................................................50
Removal and Replacement........................................................................................................................................51
Autotransformer and Snubber .....................................................................................................................................52
Removal and Replacement........................................................................................................................................52
Cooling Fan Relay (24V) .............................................................................................................................................53
Removal and Replacement .......................................................................................................................................53
Power Relay ................................................................................................................................................................54
Removal and Replacement........................................................................................................................................54
Removal and Replacement........................................................................................................................................55
Removal and Replacement........................................................................................................................................56
Removal and Replacement........................................................................................................................................57
Removal and Replacement........................................................................................................................................58
Stirrer (Antenna) Motor ................................................................................................................................................59
Removal and Replacement........................................................................................................................................59
Removal and Replacement........................................................................................................................................60
Removal and Replacement........................................................................................................................................61
Removal and Replacement........................................................................................................................................62
Table of Contents (continued)
Secondary, Monitor and Tertiary Interlock Switches ....................................................................................................63
Removal and Replacement........................................................................................................................................63
For Secondary and Monitor Switches ......................................................................................................................63
For Tertiary Switch ....................................................................................................................................................63
Power Supply Board ....................................................................................................................................................64
Removal and Replacement........................................................................................................................................64
Main Control Board......................................................................................................................................................65
Removal and Replacement........................................................................................................................................65
Removal and Replacement........................................................................................................................................66
Temperature Sensor ....................................................................................................................................................67
Removal and Replacement........................................................................................................................................67
Convection Motor ........................................................................................................................................................68
Removal and Replacement........................................................................................................................................68
Removal and Replacement........................................................................................................................................69
Removal and Replacement........................................................................................................................................70
Cooling Fan Motor Run Capacitors .............................................................................................................................71
Removal and Replacement........................................................................................................................................71
When contacting ACP, provide product information.
Product information is located on oven serial plate.
Record the following information:
Model Number: _____________________________
Serial or S/N Number: ________________________
Date of installation: __________________________
Dealer’s name and address: ___________________
__________________________________________
__________________________________________
Before servicing this oven, please take the time to read the Safety Instructions contained in this manual.
Information herein is subject to change without notice. Errors are subject to correction.
For the most recent product literature, please visit acpsolutions.com/product-literature/
Any questions or to locate an authorized ACP servicer,
call ACP ComServ Service Support.
– Inside the U.S.A. or Canada, call toll-free at
866-426-2621.
– Outside the U.S.A. and Canada, call 319-368-8195.
– Email: commercialservice@acpsolutions.com
Warranty service must be performed by an authorized
ACP servicer. ACP also recommends contacting an
authorized ACP servicer, or ACP ComServ Service
Support if service is required after warranty expires.
Online Oven Resources
ACP Programming Application
Download and install the ACP Programming Application to create, edit, and customize menu
and display settings for your oven, using a desktop computer or tablet.
To download the latest and greatest version of the ACP Programming Application
please visit acpsolutions.com/oven-programming/
Firmware Updates
For the optimal user experience, ACP recommends using the latest version of oven rmware.
To download rmware updates and installation instructions, or to opt-in for email update
notications, please visit acpsolutions.com/oven-programming/
When operating this oven, you must follow safety precautions to reduce the risk of personal injury due to burns,
electric shock or possible exposure to microwave energy.
Important Notice for Servicers and Consumers
ACP will not be responsible for personal injury or property damage from improper service procedures. 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 qualied service
technician who is familiar with the safety procedures required in the repair of this equipment and who is
equipped with the proper tools, parts, testing instruments and the appropriate service information.
IT IS THE TECHNICIANS RESPONSIBLITY TO REVIEW ALL APPROPRIATE SERVICE INFORMATION
BEFORE BEGINNING REPAIRS.
WARNING
⚠
To avoid risk of severe personal injury or death, disconnect power before working/servicing on appliance to avoid
electrical shock.
Recognize Safety Symbols, Words, and Labels
Immediate hazards which WILL result in severe
DANGER
⚠
WARNING
⚠
CAUTION
⚠
E-Mail: commercialservice@acpsolutions.com
Telephone: 1-866-426-2621 or 319-368-8195
Amana® Commercial
ARX Contact:
ComServ Support Center
Web Site: www.acpsolutions.com
personal injury or death.
Hazards or unsafe practices which COULD result in
severe personal injury or death.
Hazards or unsafe practices which COULD result in
minor personal injury, product or property damage.
Read the following information to avoid possible exposure to microwave radiation:
The basic design of the 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 to maintain this
safety. These are as follows:
1. ALWAYS operate the oven from an adequately
grounded outlet. Do not operate on a two-wire
extension cord.
2. Before servicing the oven (if oven is operable)
perform the microwave leakage test.
3. The oven should NEVER be operated if the door
does not properly seat 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:
Tell the user not to operate the oven.
Contact ACP ComServ 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 oven area while the oven 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 lter box with an insulated-handle
screwdriver before working in the high voltage
area of the oven compartment. Some types of
failures will leave a charge in these capacitors and
the discharge could cause a reex action which
could make you injure yourself.
7. ALWAYS remember that in the area of the
transformer there is HIGH VOLTAGE. When the
oven is operating keep this area clear 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 ACP.
9. IMPORTANT: Before returning an oven to a
customer, be sure to check for proper switch
interlock action.
10. The microwave oven should never be operated
with any components removed and/or bypassed
or when any of the safety interlocks are found to
be defective, or when any of the seal surfaces are
defective, missing, or damaged.
11. All microwave ovens meet all requirements of
the radiation control for Health and Safety Act
of 1968. Due to measurement uncertainties, the
maximum leakage for the eld will be 4mW/cm2.
12. To ensure that the oven does not emit excessive
microwave leakage and to meet the Department
of Health and Human Services guidelines,
check the oven for microwave leakage using a
microwave oven leakage meter that complies
with US Government CDRH / FDA / DHHS
requirements and or any other local government
requirements. The maximum leakage level
allowed by ACP is 4mW/cm2.
13. If servicer encounters an emission reading
over 4mW/cm2, the servicer is to cease repair
and contact the ACP ComServ Department
immediately for further direction. ACP will contact
When using electrical equipment, basic safety precautions should be followed to reduce the risk of burns,
electrical shock, re, or injury to persons including the following:
1. READ all instructions before using oven.
2. READ AND FOLLOW the specic “PRECAUTIONS
TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE
MICROWAVE ENERGY”.
3. This oven MUST BE GROUNDED. Connect only to
properly GROUNDED outlet. See “ GROUNDING /
EARTHING INSTRUCTIONS”.
4. Install or locate this oven ONLY in accordance with the
installation instructions in this manual.
5. Liquids or other foods, MUSTNOT BEHEATED in
sealed containers since they are likely to explode.
6. Eggs in their shell and whole hard-boiled eggs
SHOULD NOT BE HEATED in microwave ovens
since they may explode even after microwave heating
has ended.
7. Use this oven ONLY for its intended use as described
in this manual. DO NOT use corrosive chemicals or
vapors in this oven. This type of oven is specically
designed to heat, cook, or dry food. It is not designed for
industrial or laboratory use.
8. This oven is NOT intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person
responsible for their safety.
9. CHILDREN SHOULD BE SUPERVISED to ensure
that they DO NOT play with the appliance.
10. Failure to maintain the oven in a clean condition could
lead to deterioration of the surface that could adversely
aect the life of the appliance and possibly result in a
hazardous situation.
11. DO NOT heat baby bottles in oven. Baby food jars
must be open when heated and contents stirred or
shaken before consumption in order to avoid burns.
12. DO NOT operate this oven if it has a damaged cord
or plug, if it is not working properly, or if it has been
damaged or dropped.
13. This oven, including power cord, must be serviced
ONLY by qualied service personnel. Special tools are
required to service oven. Contact nearest authorized
service facility for examination, repair, or adjustment.
14. DO NOT cover or block louvers or other openings on
oven.
15. DO NOT store this oven outdoors. DO NOT use
this product near water – for example, near a kitchen
sink, in a wet basement, a swimming pool, or a similar
location.
16. DO NOT immerse cord or plug in water.
17. Keep cord A W AY from HEATED surfaces.
18. DO NOT let cord hang over edge of table or counter.
19. For commercial use only.
PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO
EXCESSIVE MICROWAVE 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 to allow soil or cleaner residue to accumulate on
sealing surfaces.
C. DO NOT operate the oven if it is damaged. It is 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 seals and sealing surfaces.
D. The oven should not be adjusted or repaired by anyone except properly qualied service personnel.
when paper, plastic, or other combustible materials
are placed inside the oven, due to the possibility of
ignition.
b. Remove wire twist-ties from paper or plastic bags
before placing bag in oven.
c. If materials inside the oven ignite, keep oven door
CLOSED, turn oven o and disconnect the power
cord, or shut o power at the fuse or circuit breaker
panel.
d. DO NOT use the cavity for storage. DO NOT leave
paper products, cooking utensils, or food in the cavity
when not in use.
To avoid personal injury or property damage, observe the following:
WARNING
⚠
Liquids such as water, coee, or tea are able to be
overheated beyond the boiling point without appearing
to be boiling due to surface tension of the liquid. Visible
bubbling or boiling when the container is removed
from the microwave oven is not always present. THIS
COULD RESULT IN VERY HOT LIQUIDS SUDDENLY
BOILING OVER WHEN A SPOON OR OTHER
UTENSIL IS INSERTED INTO THE LIQUID.
To reduce the risk of injury to persons:
a. DO NOT overheat liquid.
b. Stir liquid both before and halfway through heating.
c. DO NOT use straight-sided containers with narrow necks.
d. After heating, allow container to stand in the microwave
oven for a short time before removing container.
e. Use extreme care when inserting a spoon or other
utensil into the container.
CAUTION
⚠
WARNING
⚠
1. DO NOT deep fat fry in oven. Fat could overheat
and be hazardous to handle.
2. 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.
3. Pierce skin of potatoes, tomatoes, and similar foods
before cooking with microwave energy. When skin is
pierced, steam escapes evenly.
4. DO NOT operate oven without load or food in oven
cavity.
5. Microwave popcorn should NOT be popped in oven.
6. DO NOT use regular cooking thermometers in oven.
Most cooking thermometers contain mercury and
may cause an electrical arc, malfunction, or damage
to oven.
7. DO NOT use metal utensils in oven.
8. DO NOT use aluminum foil in oven
9. NEVER use paper, plastic, or other combustible
materials that are not intended for cooking.
10. When cooking with paper, plastic, or other
combustible materials, follow manufacturer’s
recommendations on product use.
11. DO NOT use paper towels which contain nylon or
other synthetic bers. Heated synthetics could melt
and cause paper to ignite.
12. 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.
13. To avoid pacemaker malfunction, consult physician
or pacemaker manufacturer about eects of
microwave energy on pacemaker.
14. An authorized servicer MUST inspect oven annually.
Record all inspections and repairs for future use.
Utilizing technology that combines Convection and Hot Air-Impingement along with Microwaves, the ARX-MRX
family of High Speed Combination Ovens rapidly cook food without sacricing quality in a small footprint. The
controls allow either programmed or manual cooking to coordinate air velocity and microwave production as needed
to meet the cooking requirements of the specic product. The on-board catalytic converter allows for ventless
installation.
Sequence of Operation
The oven is turned “ON” and allowed to come up to the programmed cooking temperature.
With a Menu Item loaded into the oven cavity and the door closed, the operator can either select from a list of
preprogrammed menus or input manual cooking instructions.
There are cooking stages that can have dierent levels of microwave energy and impingement air velocity.
Once initiated, the oven’s Controller will signal the Magnetron circuit to operate from 0 to 100% by modulating the
circuit on and o (or on 100%) based on the program. Simultaneously, the Controller will regulate the Convection
Blower’s speed from 0 to 100% based on the program. At the end of each cooking stage, the oven can change to a
dierent microwave level and/or blower speed.
During these cooking stages, the oven controls the cooking temperature by energizing and de-energizing a heating
element.
Oven MUST be grounded. Grounding reduces risk of electric shock
by providing an escape wire for the electric current if an electrical short
occurs. This oven is equipped with a cord having a grounding wire
with a grounding plug. The plug must be plugged into an outlet that is
properly installed and grounded.
Consult a qualied electrician or servicer if grounding instructions are not completely understood, or if doubt exists as to whether
the oven is properly grounded.
Do not use an extension cord.
If the product power cord is too short, have a qualied electrician install a three-slot receptacle. This oven should be plugged into
a separate circuit with the electrical rating as provided in the product specications. When the combination oven is on a circuit
with other equipment, an increase in cooking times may be required and fuses can be blown.
The oven has a secondary earthing terminal. The terminal provides an external earthing connection used in addition to
the earthing prong on plug. Located on outside of oven back, the terminal is marked with symbol shown at right.
To avoid risk of electrical shock or
death, this oven must be grounded
Installation
STEP 1 - Unpack 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 packing materials from
oven interior.
• If oven has been stored in an
extremely cold area, wait a few hours
before connecting power.
• If you plan to program via Ethernet, remove plastic plug from port on the right
rear of oven. Gently use pliers if necessary.
Use two or more people to move and
Failure to do so can result in back or
⚠
and plug must not be altered.
WARNING
⚠
Excessive Weight Hazard
install oven.
other injury
MIN. 2" (5.1 cm)
MIN.
1/2"
(1.27 cm)
(1.27 cm)
MIN.
1/2"
STEP 2 - Place Oven on Counter
• Recommended countertop surface depth is 28” (71 cm).
• Do not install oven next to or above source of heat, such as pizza oven
or deep fat fryer. This could cause oven to operate improperly and could shorten
life of electrical parts.
• Do not block or obstruct oven lters. Allow access for cleaning.
• Install oven on level countertop surface.
• Outlet should be located so that plug is accessible when oven is in place.
STEP 3 - Install Cook Plate
• Install oven cook plate
1. Oven cavity must be cool to touch.
2. Place cook plate in oven with curved edge toward the front of cavity.
CAUTION: DO NOT cook food directly on oor of oven.
This oven can be set to a
preheat temperature between
200°F (95°C) and 520°F (270°C).
Oven must be plugged in.
(Screen will power on to “Standby
Mode” within approximately 30 seconds.)
Press Green
Power Icon
Preheat temperature of oven
will appear in display.
Press the Power Icon
again to interrupt
preheating, or press the
Blue Menu Icon to
access Main Menu and
User Options.
Power Off Oven
At the end of the day,
turn the oven o by
pressing the Green
Power Icon on the screen. The
oven will begin cooling down.
The Oven Fan will continue to
run to cool the oven.
Cooling Down Screen appears
and stays on until oven
temperature is below 200°F
(95°C)
Caution: To avoid
⚠
damage to the convection
motor DO NOT turn o power
by unplugging the oven or
shutting o the power breaker
until the fan stops.
Methods of Cooking
and Programming
• Cooking with Preprogrammed
Menu Items
• Manual Cooking and Oven
Programming
• Recipe and Menu creation via
ACP Programming Application
• USB Programing
• Wi-Fi Programming
• Ethernet Programming
You may add and organize
recipe information by creating
new recipes, folders and
tabs. See Section – Manual Programming.
To download and view example
menus, please visit
acpsolutions.com/ovenprogramming/
First Time Use
Set User Options
There are several options you
can change to customize the
operation of the oven for your
business. To access and edit
user options, see Section –
User Manual.
Set Time and Date settings
for current local time. This
oven maintains a data log
which is used to diagnose and
troubleshoot errors. An accurate
date and time are important for
the data log.
The Home Screen on the oven displays Recipe Options. Scroll up and down with your nger to navigate
through On-Screen Menus and Recipes. After the oven has preheated, the Menu appears. The high-speed
oven comes preprogrammed with several Menu Items to simplify cooking.
Standard Preprogrammed Menu Items:
1. Breakfast Casserole
2. Breakfast Sandwich
3. Omelet
4. Tuna Melt
5. Crab Cakes
6. Pizza
7. Reuben Panini
8. Muuletta Panini
9. Fish Tacos
10. Salmon
11. Roasted Vegetables
12. Baked Potato
13. Ice Cream Sandwich
14. Grilled Pineapple
15. Chicken Wings
16. Fries
17. Shrimp
Cooking with Preprogrammed Menu Items
1. After oven has preheated to desired temperature, open oven door, place
food in oven and close door.
2. Scroll to choose desired food item from Menu and press the Food
Item you wish to cook. The Cook Cycle will begin and screen will show
remaining Cook Time.
Note: If “Preheat Warning” is enabled and preheat temperature diers
from default preheat temperature, the control will interrupt cook cycle to
guarantee that oven reaches desired temperature before cook cycle begins.
Enable “Preheat Warning” in user options.
3. At the end of the cooking cycle, the oven beeps and displays animation.
Use oven mitts and/or paddle to carefully remove food from oven.
Note: “Manual cooking” must be enabled in user options (see Section – User Options)
Use manual cooking when a specic entered time and cooking power levels are desired. Manual cooking is very
useful when you are experimenting with new food items. Maximum Cook Time is 99:99 (100 minutes and 13
seconds). Microwave and Fan can be set to power levels between 0-100%.
Note: You may also create and edit recipes using the ACP Programming Application.
1. After oven has preheated press Blue Menu Icon.
Note: To guarantee that oven reaches the desired temperature
before the start of cook cycle, enable “Preheat Warning” in user
options.
2. Press the “Manual Recipe” option.
3. To change cooking temperature for recipe, press Temperature
Icon on the left, and input new temperature. Two frequently used
temperatures will appear for quick selection.
Press Green Check Mark Icon after inputting a temperature.
4. For Stage 1, enter cooking time by pressing Time Entry Box.
A number pad will appear. Enter the desired Cook Time.
Press the “OK” Icon.
5. Select desired microwave power by pressing Microwave Power
Entry Box. Choose from options ranging from 0% - 100%.
6. Select desired fan speed by pressing Fan Speed Entry Box.
Choose from options ranging from 0% - 100%.
7. Repeat steps 4-6 for each cooking stage, if more than one
cooking stage is necessary.
Note: To Save without cooking rst, press the Save Icon.
Follow instructions on the next page.
2
4-6
Time
MW
Fan
8. Open oven door and place food in oven. Press the Green
Check Mark Icon to begin cooking. Once the cook cycle is
complete, open door and use oven mitts and/or paddle to
carefully remove food. The display will return to the Manual
Input Screen. See instructions on next page to Save and Edit
Menu Item from Manual Cook.
1. To Save the settings and create Menu Item, press the Blue Save Icon.
2. Choose a background color and icon, or an image, to customize the
Menu Item.
3. Press the Right Arrow Icon to move to the next screen.
4. Name recipe and press the Green Check Mark Icon to Save.
5. To reorganize Menu Items, you may press, hold and drag them.
6. Press the Green Check Mark Icon to complete this step and Save the
Menu Item.
Manually Edit an Existing Menu Item:
1. Press the Blue Menu Icon at the bottom of the screen.
2. Press the “Edit Recipe” option.
3. Press the desired recipe to be edited. The control will prompt you
to the Manual Editing Screen where you may revise the Cooking
Settings.
Note: For larger and more
complex menus, it may be
more manageable to create
and edit menus using the
ACP Programming Application.
For detailed instructions,
please visit: acpsolutions.com/
oven-programming/
2
4. To delete the Menu Item, press the Orange Garbage Can Icon. Press
the Green Check Mark Icon to conrm, or press the “X” to dismiss.
Note: Skip the following step if you do not want to cook anything.
5. Open the oven door and place the food in the oven. Press the
Green Check Mark Icon to begin cooking with the revised Menu
Item settings. The display will return to the Manual Input Screen at
the end of the Cook Cycle.
6. Press the Right Arrow Icon to Save any changes made to Cook
Settings and move to the next screen.
7. If desired, choose a dierent background color. Press the Right
Arrow Icon to select an image at the next screen. Press the Right
Arrow Icon again to move to the next screen.
8. If desired, change the name of the recipe. Press the Green
Check Mark Icon to Save the Menu Item.
Manually Move Recipe:
1. Press the Blue Menu Icon at the bottom of the screen.
2. Press the “Move Recipe” option.
2
3. Press, hold, and drag recipes to dierent locations on the screen.
4. To move a recipe into a folder, press, hold and drag the recipe to
the folder.
5. To move a recipe out of a folder, press, hold and drag the recipe
to the top of the screen.