WHALL AO28S01 User manual

Air Fryer Oven
Owner’s Manual
Save these instructions-For household use only
When using electrical appliances,basic safety precautions should always be
followed. Do not use Air Fryer Oven until you have read this manual thoroughly.
Model : AO28S01

TABLE OF CONTENTS
OWNER’S MANUAL
IMPORTANT SAFEGUARDS ························· 03
11 PRESETS ················································ 06
BASIC SPECIFICATION ································ 02
PARTS & ACCESSORIES ····························· 07
INSTRUCTIONS ··········································· 08
CLEANING & MAINTENANCE ····················· 14
TROUBLESHOOT GUIDE ····························· 15
LIMITED WARRANTY ·································· 17
01/18

02/18
BASIC SPECIFICATION
Electrical and environmental parameters
Technical specification
Product size:510*283*408mm
Package size:577*460*364mm N.W.:8.58KG
G.W.:10.9KG
1Item Specification
Working Voltage and Frequency AC110V~120V、60Hz
Standby power <1W
Rated Voltage and power 120V/1700W
Motor 120V/60Hz 12W
Lamp 120V/15W
Fan DC12V/1.92W
Pump DC12V/0.5A
Max working humidity RH95%
Working ambient temperature
range -4 ~185
Storage ambient temperature
range -13 ~185
2
3
4
5
6
7
8
9
10
Name Specification
Temperature adjust range 105~450
Time adjust range 0.5~24h
Time control error ±2%
Temperature accuracy error ±33.8

03 /18
IMPORTANT SAFEGUARDS
HOUSEHOLD USE ONLY • READ ALL INSTRUCTIONS BEFORE USE
Operate only in accordance with intended use as described in this manual.
When using electrical appliances, basic safety precautions should always
be followed including the following:
1. Read all instructions.
2. Ensure the appliance and all parts are clean and dry before each use.
3. Do not touch hot surfaces. The appliance’s surfaces may be hot during and after use. Use handles as directed
to handle appliance.
4. A short power-supply cord is provided to reduce risk.
5. Do not let cord hang over any edge or let the cord touch hot surfaces.
6. Discard the protective plastic covering the power plug before use.
7. Do not immerse cord, plugs, or appliance in water or other liquid.
8. Close supervision is necessary when any appliance is used near children. This appliance is not intended for
use by persons with reduced physical, sensory or mental capabilities, children, or persons with lack of
experience or knowledge, unless supervised or instructed on the use of the appliance by one responsible for
their safety.
9. Unplug from outlet when not in use and before cleaning. Allow to cool before removing or replacing parts.
10. Do not operate if the appliance or the appliance’s cord malfunctions or has been damaged in any way.
Return appliance to the nearest authorized service facility for examination, repair, or adjustment.
11. Use only on a clean, stable, dry and level surface.
12. Do not use accessories or attachments not recommended by the manufacturer.
13. Do not use outdoors. This appliance is intended for non commercial, indoor use only.
14. Do not place on or near a hot surface or in a heated oven.
15. Unplug the appliance when not in use and allow the appliance to cool completely before cleaning or
removing/replacing parts.
16. Never put the Oven against the wall or other appliances. There should be at least 5 inches of free space
behind, to the sides of, and on top of the Oven.
17. Do not place airtight containers in the Oven.
18. Do not place plastic or rubber containers in the unit. Avoid using containers made of any other material
other than ceramic, glass, or metal in the unit.
19. Do not place paper, cardboard, plastic, or any other flammable materials on top of or inside the Oven during
use.
20. Use aluminum foil to enwrap foods that produce oil or juice when operating and put on the Baking Pan or
Broiler Rack to prevent fire.
21. Make sure foil does not touch heating elements, to prevent fire.
22. Do not cover Crumb Tray or any part of the Oven with foil. This will cause overheating of the oven and may
cause fire.
23. Do not place objects on top of Oven.
24. Do not alter or modify any part of the Oven or use attachments or accessories not recommended by the
manufacturer.
25. It is normal for some smoke to escape the unit when heating for the first time.
26. If excess smoke is escaping from the air vent during operation, unplug the unit immediately and contact
27. Do not overfill the Oven such that contents are touching heating elements or blocking the fan.
28. During use, steam may be released from the air outlet vents. Keep hands and face away from the air outlet
openings. Be careful of hot steam escaping when opening the Oven.
29. Avoid placing face and eyes near the glass door during use.
30. Never touch the insides of the Oven while it is operating.

04/18
ELECTRICAL INFORMATION
A short power-supply cord is provided to reduce the risk resulting from
becoming entangled in or tripping over a longer cord. Longer detachable
power-supply cords or extension cords are available and may be used if
care is exercised in their use. If a longer detachable power-supply cord
or extension cord is used:
1. The marked electrical rating of the extension cord should be at least as great as the electrical rating of the
appliance.
2. The longer cord should be arranged so that it will not drape over the countertop or tabletop where it could
be pulled on or tripped over unintentionally. The Oven should be operated on a separate electrical outlet
from other operating appliances due to wattage limitations. The appliance has a polarized plug (one blade
is wider than the other). To reduce the risk of electric shock, this plug is intended to fit into a polarized
outlet only one way. If the plug does not fit fully into the outlet, reverse the plug. If it still does not fit,
contact a qualified electrician. Do not attempt to modify the plug in any way.
3. If the appliance is of the grounded type, the cord set or extension cord should be a grounding-type 3-wire
cord.
31. Use extreme caution when operating the Oven or any other appliance.
32. Never leave the Oven unattended during use.
33. Do not disassemble the Oven.
34. Unplug the Oven from the outlet when not in use orbefore cleaning.
35. Allow the Oven to cool before putting in or pulling out items or before cleaning.
IMPORTANT SAFEGUARDS
WARNING nice-bay[email protected]
In case of other problems, unplug unit and contact Customer Service:
CLEANING & MAINTENANCE BEFORE USE
SAVE THESE INSTRUCTIONS
Read and understand the entire manual before using this appliance.
IMPORTANT SAFEGUARDS
HOUSEHOLD USE ONLY • READ ALL
INSTRUCTIONS BEFORE USE

05/18
DO NOT USE THE OVEN FOR ANYTHING OTHER THAN
ITS INTENDED USE.
FAILURE TO FOLLOW ANY OF THE IMPORTANT SAFEGUARDS,
ADDITIONAL SAFEGUARDS, OR THE INSTRUCTIONS FOR SAFE USE IS A
MISUSE OF THE SMART OVEN THAT CAN VOID THE WARRANTY AND
CREATE THE RISK OF SERIOUS INJURY.
Note:
Put the Oven on a surface that is horizontal, even, and stable. This appliance is intended for normal household
use. It is not intended to be used in environments such as staff kitchens/cafeterias of shops, offices, farms, or
other work environments, nor is it intended to be used by clients in hotels, motels, bed and breakfasts, and
non-residential environments.
1. Amount of ingredients placed in the Oven should comply with directions listed under “Instructions.”
2. Do NOT move the Oven while in operation.
3. Only after the Oven has completely cooled down should you attempt to move or handle it.
4. DO NOT attempt to use the Oven to deep-fry any food as this is NOT its intended use and may create a fire
hazard.
5. Do not cover the intake air vents or exhaust vents while the Oven is operating.
6. Always put the ingredients to be cooked on the appropriate baking sheet (do not overfill) and do not allow
food to come into direct contact with the heating components.
7. Make sure the Oven is always clean prior to cooking.
9. Before removing the plug from the outlet, always turn the unit “OFF”.
10. Always unplug power cord by pulling on plug, NOT the cord.
IMPORTANT SAFEGUARDS
WARNING
Never use the Oven with loose, damaged, or
missing parts.
NOTICE:
ADDITIONAL SAFEGUARDS

Note:
• NEVER Allow any food to touch the heating elements directly.
• Default temperatures, times, and rack positions are a guide. Adjustments may need to be made to reach
desired result.
• Steam function can be adjusted according to usage requirements ( 1-3times )
•The temperature and time of the DIY function are memorized every time the last setting is set.
11 PRESETS
Presets Food
weight Default
Temp Default
Time STEAM Rack
Position
Fries 502g 410°F 20 min N 3Floor
Meat 207g 410°F 10 min N 2 Floor
Chicken 2359g 430°F 38 min 3 times 1 Floor
Bread 6 pcs 400°F 7 min N 3 Floor
Fish 511g 430°F 20 min 2 times 2 Floor
Drumstick 565g 430°F 20 min 1 times 2 Floor
Shrimp 551g 406°F 12 min 1 times 2 Floor
Reheat 582g 410°F 15 min N 3 Floor
Custom Custom N 2 Floor
Dehydration
DIY
/ 175°F 9hr N 2/3 Floor
Pizza 9 inch 370°F 15 min 1 times 2 Floor
06/18
/

1. Base 2.Steam tank 3.Handle 4.Time LED display
5.Temperature LED display 6.Preset Menu
7.Functions: Volume & Light & Air fryer & Cancel
8.Dial 9.Pull-Out Crumb Tray 10.2Heavy-Duty Cooking Racks
11.Enamel Baking Pan 12.Air Fry Basket
PARTS & ACCESSORIES
07/18
1
3
42
5
6
7
8
9
12
11
10

Note:
Do not cover or block the intake air vents located in the back and sides of the Oven, as doing so can prevent
proper ventilation.
1. Place the Oven on a level, even, and stable heat-resistant surface.
2. Slide the Cooking Rack(s) into Position 1, 2, 3, or 4 of the Oven.
3. The baking pan, grill and frying net should be placed according to the silk screen on the glass door
4. Place the Air Fry Basket on top of Baking Pan. It is recommended to use Air Fry Basket with Baking Pan to
optimize cooking results.
5. Place Crumb Tray into position by sliding it into slot at bottom of Oven. To remove, push down slightly and pull
out.
6. Plug the appliance into a standard wall socket. The power plug is located in the rear of the unit.
INSTRUCTIONS
08/18
Basket--position 2,3
Wire Rack with ear --position 2,3
Baking pan upon
Wire Rack--position 1,2

INSTRUCTIONS
09/18
Item Icon Operation instruction
1
After the power is powered on, the buzzer sounds and
all the ICONS light up. When the "Power button" flashes,
the (standby) standby indicator lights up, all the others
go off and enter the standby state. At this time, directly
press the "Power" button to enter the setting state for
function setting. All lights are lit except the standby
indicator, running indicator, pause indicator and water
adding indicator (if there is no operation within five
minutes, it will automatically return to the standby
state). The fries menu icon flashes.
2
Under the setting state, press this key, then the flashing
display, turn the knob to set the time. Do not perform
any operation within 5 seconds after the setting is
complete or press the Time button again to confirm the
setting is complete. The time key becomes steady on.
The dried fruit function steps by 30 minutes per unit,
and the DIY function steps by 1 minute per unit.
3
Under the setting state, press this key, then the flashing
display, turn the knob to set the temperature. After the
setting is complete, do not operate within 5 seconds or
press the Temperature button again to confirm the
setting is complete. The temperature key becomes
steady on. Step beat at 5 degrees Fahrenheit.
4
When the power is on and you press the Power button,
the Fries menu is selected by default, and the Fries
menu icon flashes. The default mode is air blast
operation. The user can directly press the Start button
to enter the working state.
5
When the power is on, press the "power button" and
the machine will enter the setting state. Click this
menu at this time, the menu icon flashing display.
Directly press the "Start" button to enter the air
blast mode.
6
When the power is on, press the "power button" and
the machine will enter the setting state. Click this
menu at this time, the menu icon flashing display.
Directly press the "Start" button to enter the air blast
mode.
7
When the power is on, press the "power button" and
the machine will enter the setting state. Click this
menu at this time, the menu icon flashing display.
Directly press the "Start" button to enter the air blast
mode.

INSTRUCTIONS
10/18
Item Icon Operation instruction
8
When the power is on, press the "power button" and the machine will
enter the setting state. Click this menu at this time, the menu icon
flashing display. Directly press the "Start" button to enter the air blast
mode.
9
When the power is on, press the "power button" and the machine will
enter the setting state. Click this menu at this time, the menu icon
flashing display. Directly press the "Start" button to enter the air blast
mode.
10
When the power is on, press the "power button" and the machine will
enter the setting state. Click this menu at this time, the menu icon
flashing display. Directly press the "Start" button to enter the air blast
mode.
11
When the power is on, press the "power button" and the machine will
enter the setting state. Click this menu at this time, the menu icon
flashing display. Directly press the "Start" button to enter the air blast
mode.
12
When the power is on, press the "power button" and the machine will
enter the setting state. Click this menu at this time, the menu icon
flashing display. Directly press the "Start" button to enter the air
blast mode. Steam frying function is not optional on this menu. The
covered pole motor can be either on or off. The time and temperature
can be adjusted freely during the blinking of the dried fruit icon.
13
When the power is on, press the "power button" and the machine will
enter the setting state. Click this menu at this time, the menu icon
flashing display. Directly press the "Start" button to enter the air blast
mode.
14
Setting Status Select this menu, time and temperature flashing display
simultaneously. Select the time and temperature key to enter the time
or temperature setting (the time key flashes to set the time;
Temperature key blinks to set temperature)And diy can remember the
time and temperature set by clicking the diy button last time
15
IIn either the suspended state or the working state, you can press the
"Cancel" button to enter the setting state for function setting. All
lights are lit except the standby indicator, the running indicator, the
pause indicator and the water adding indicator (if there is no
operation within five minutes, it will automatically return to the
standby state). The fries menu icon flashes.
16
IBy default, this function is not enabled under the setting state, and it
is always on. If you click the icon, the state turns to blink, indicating
that it is on. That is to complete the setting. If you need to cancel this
function, click the icon to turn it off. After closing, the icon is on.

11/18
INSTRUCTIONS
Item Icon Operation instruction
18
By default, this button is steady on and can be switched freely in any state.
The steady on state remains unchanged (the buzzer cannot be turned off
by default).buzzer
■One buzzer for power-on (1 sound in 0.2 seconds)
■Key, every time press a valid key, the buzzer buzzes 1 sound (1 sound in
0.1 seconds)
■5 buzzer sounds at the end of work(sound 0.5 seconds,interval1second)
■When water is scarce, the buzzer will sound continuously (ring for 1
second, stop for 1 second at intervals).
17
This function is enabled by default in the setting state and can be switched
freely. Blinking indicates the function is enabled, while long on indicates
the function is disabled.
Enter the working state, do not switch freely, long on means on, off means
off.
19
By default, this button is steady on and can be switched freely in any state.
When it is steady on, the lighting function will be turned on by default when
it enters the working state
20
Under the suspended state: press this button to enter the working state,
the running indicator is on, the time digital tube displays the countdown,
and the temperature digital tube displays the set temperature.Under
working state: press this button to enter pause state, pause indicator
light on, time digital tube to suspend countdown, selected menu function
flashing display, other menus on.
Under setting: Press this knob to start working.
Standby: Press the knob or turn the knob to enter the setting state
21
Steady on in working state: The selected function is steady on.
22
Steady on in the paused state: the selected function blinks; Everything else
is on.
23
Steady on in standby state: After the work is finished, you can turn or press
the knob to return to the setting state
24
The machine is often bright without water: water needs to be added to the
operation

12/18
INSTRUCTIONS
℃℉ ℃℉ ℃℉ ℃℉ ℃
℉
105
110
115
120
125
130
135
140
145
150
155
160
165
170
175
180
185
41
43
46
49
52
54
57
60
63
66
68
71
74
77
79
82
85
190
195
200
205
210
215
220
225
230
235
240
245
250
255
260
265
270
88
91
93
96
99
102
104
107
110
113
116
118
121
124
127
129
132
275
280
285
290
295
300
305
310
315
320
325
330
335
340
345
350
355
135
138
141
143
146
149
152
154
157
160
163
166
168
171
174
177
180
360
365
370
375
380
385
390
395
400
405
410
415
420
425
430
435
440
182
185
188
191
193
196
199
202
205
207
210
213
216
219
221
224
227
445
450 229
232
Fahrenheit and Celsius table
Helpful Hints
1. Some moisture may appear on the door during certain cooking cycles.
2. When air-frying, food can be lightly coated with oil beforehand to boost crispiness and browning.
3.If the power is off due to abnormal operation, call again within 10 minutes, and continue running according to
the state before the power is off. Call again after 10 minutes, and directly return to the initial standby state.
Oven Rack and Pan Positions
1 Floor : Chicken 430F/38min Pan+Rack

Note:
• For chicken or other large items, use Position 1 (with Baking Pan and Broiler Rack) as shown above.
• When cooking pizza, for crispier results use position 1.
13/18
INSTRUCTIONS
Oven Rack and Pan Positions
2Floor :
Meat: 410F/10mins pan+rack
Fish:430F/20mins pan+rack or basket
Pizza:370F/15mins all accessories
Drumstick:430F/20min pan+rack
Dehydration:175F/9h rack or basket
Reheat: 410F/15mins all accessories
3Floor : Fries:410F/20minsBasket
Bread: 400F/7min Rack or basket
4Floor :
Because it is close to the heating pipe,
the temperature is high, it can be used
for thawing. It is not recommended to
carry out conventional baking in this
layer, which is easy to overheat
Measurement Chart
Teaspoon = t Fahrenheit = ℉Minute = min Tablespoon = T
Celsius = ℃Second = sec Cup = c Fluid Ounces = fl oz
Inch = in. Ounce = oz Liter = L Dozen = doz
Pound = lb(s) Milliliter = ml
Hour = hr Hour = hr Quart = qt
Package = pkg. Gram = g Pint = pt Gallon = gal

Before First Use:
Wash all removable parts in warm, soapy water or in the
dishwasher, top rack only.
1. Remove all the packaging materials.
2. Remove the glue and labels on the appliance.
3. Clean the Cooking Racks, Baking Pan, Broiler Rack, Air
Fry Basket and Crumb Tray thoroughly with hot water, a
nonabrasive sponge, and mild dish detergent, or in the
dishwasher, top rack only.
4. Wipe the insides and outside of the appliance with a
damp dishcloth or wet cloth and dry thoroughly
5. Instructions for cleaning water pipes during first or
long-term use:Adding or replacing purified water to
the water box.When the power is on,press the"power button"
and setting Status Select this DIY menu, time and temperature
flashing display simultaneously .Select the time key to enter
the time setting:7 mins. You click the Steam , the state turns to blink.
And then select 3rd gear.Finally, press the knob to start.
IMPORTANT - Do not immerse unit in water or attempt to cycle through
dishwasher. The outer surface may be cleaned by wiping carefully with
a damp dishcloth or sponge. Make sure unit has cooled completely prior
to cleaning.
Clean After Each Use:
1. Allow the unit to cool completely before cleaning.
2. Always unplug the Oven from the electrical outlet. NEVER clean the unit while it is plugged in.
3. Never use harsh abrasive or corrosive product cleaners, as they may damage the finish or oven surface.
Wipe the exterior with a clean, damp cloth and dry thoroughly.
4. Apply the cleaning agent directly to a cloth towel, not directly to the unit, before cleaning.
5. To clean interior, use a damp cloth, mild liquid soap solution, and a clean cloth towel.
6. Never use steel wool pads, etc., on interior or exterior of oven.
7. When the glass window is completely cool, spray glass cleaner on a clean cloth towel. Clean both inside
and outside of window. Use a damp cloth to rinse the window then dry completely with a clean dry towel.
8. To remove crumbs, slide out the Crumb Tray and discard crumbs. Wipe clean and replace. Crumb Tray
should be emptied and cleaned after each use.
Storage
• Unplug the Oven and let unit cool down completely.
• Make sure that all parts are cleaned and dry.
• Never wrap the cord around the Oven.
14/18
CLEANING & MAINTENANCE

The oven was engineered with an automatic shut-off feature to prevent overheating during use. If the Oven
shuts off to cool itself down, an odor may be detected. Unplug the unit and wait for it to completely cool down.
To prevent the Oven from overheating, do not cook foods at higher temperatures or longer times than
recommended.
15/18
TROUBLESHOOT GUIDE
The OVEN does not work.
1. The Oven is not plugged in. Did not press “power”.
2. Insert the plug into an appropriate grounded power socket. Press
“power”. If still not working, contact Customer Service at
nice-bay[email protected]
The door to Oven will not close completely
1. Food item is too large. Oven racks or accessories are not properly
set in place.
2. Use smaller amounts of food to cook. Make sure Racks and Pans
are slid into place and pushed all the way to the back of the unit.
The food is cooked unevenly.
1. Check cooking progress throughout. Turn or rotate as needed to
ensure even cooking.(Especially when it's cooked in synchro)
Air fryer and Steam oven
1. The Crumb Tray is not placed into the slot correctly. Something
is blocking the Tray from sliding into position.
2. Remove the Crumb Tray and clean away any food items that may
have accumulated in the back of the OVEN.

16/18
TROUBLESHOOT GUIDE
White smoke is coming out of the product.
1. You are cooking greasy foods. The Baking Pan contains greasy
residue from previous uses. When preparing greasy ingredients in
the unit, large amounts of oil can smoke. The oil will produce white
smoke. This will not affect the final cooking effect. White smoke is
caused by grease heating up on the Cooking Racks, Baking Tray,
Broiler Rack, Air Fry Basket, and/or Crumb Tray.
2. Clean Cooking Racks, Baking Tray, Broiler Rack, Air Fry Basket,
and/or Crumb Tray regularly between use.
The LED screen is blank.
1. The Oven overheated and has shut itself down. No action was
taken after certain stages of cooking and unit shut down. Control
Panel not working correctly.
2. Unplug the Oven and allow the unit to completely cool. Plug back
in and see if it is working. If the LED screen Remains blank,
The Oven is not heating.
1. Unit is unplugged. The Oven has overheated. Heating elements are
not working.
2. Make sure the Oven is plugged in. Make sure the unit is has
completely cooled. Plug in and see if unit comes up to correct
temperature. If unit continues to not heat up, Contact Customer

The AO28S01 Smart Oven
THE MANUFACTURER WARRANTS
17/18
TROUBLESHOOT GUIDE
LIMITED WARRANTY
Contact Customer Service if any of these errors occur:
When the temperature sensor is faulty, the digital tube displays the error
code, the buzzer buzzes continuously (the buzzer buzzes continuously,
ringing for 1 second, and the interval stops for 1 second), it cannot carry
out any work, and it does not respond to any key (pressPower button two
seconds to exit the fault display to standby), if the hardware fault is
removed, you can work again. The temperature digital tube is shown below
- E1: The NTC temperature sensor overheats
- E2: indicates that the NTC temperature sensor is shorted
- E3: open the NTC temperature sensor
The Oven, including the Heavy-Duty Cooking Racks, Enamel Baking Pan,
Chrome-Plated Air Fry Basket, Pull-Out Crumb Tray, and all electrical
components are warrantied for 1 year from the date of purchase, under
normal household use, and when operated in accordance with the
Manufacturer’s written instructions. The Manufacturer will provide the
necessary parts and labor to repair any part of the Oven at the Service
Department. After the expiration of the warranty, the cost of the labor and
parts will be the responsibility of the owner.
THE WARRANTY DOES NOT COVER
The Limited Warranty is voided if repairs are made by an unauthorized
dealer and/or the serial number data plate is removed and/or defaced.
Normal deterioration of finish due to use or exposure is not covered by this
Warranty. This Limited Warranty does not cover failure, damages or
inadequate performance due to accident, acts of God (such as lightning),
fluctuations in electric power, alterations, abuse, misuse, misapplications,
corrosivetype atmospheres, improper installation, failure to operate in
accordance with the Manufacturer’s written instructions, abnormal use or
commercial use .

18/18
TO OBTAIN SERVICE
LIMITED WARRANTY
The owner shall have the obligation and responsibility to: pay for all services
and parts not covered by the warranty; prepay the freight to and from Service
Department for any part or system returned under this warranty; and
carefully package the product using adequate padding material to prevent
damage in transit. The original container is ideal for this purpose. Include in
the package the owner’s name, address, daytime telephone number, a
detailed description of the problem, and your “RGA number.” email
Authorization number). Provide the cooking system model & serial number
and proof of date of purchase (a copy of the receipt) when making claims
under this warranty.

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