
MODEL: ARC-1280MX
W H Y N T E R N E X I N V E R T E R 1 2 8 0 0 B T U ( 1 0 0 0 0 B T U S A C C )
P O R T A B L E A I R C O N D I T I O N E R D U A L H O S E C O O L I N G - B L A C K
Page 1
Congratulations on your new Whynter product. To ensure proper operation, please read this Instruction
Manual carefully before using this product. Keep this manual in a safe place for future reference.

DISPOSAL INFORMATION
Read Safety Precautions Before Operation and Installation
Thank you for choosing Whynter. Please follow the instructions provided in this user manual to obtain the very best performance
from your portable air conditioner.
We trust that your Whynter portable air conditioner will provide the performance and reliability that we stand for.
Please keep this user manual in a safe place for future reference.
This symbol on the product or its packaging indicates that this appliance cannot be treated as normal domestic trash, but must
be handed in at a collection point for recycling electric and electronic appliances. Your contribution to the correct disposal of this
product protects the environment.
Further information about the recycling of this product can be obtained from your local municipal authority.
Page 2

CAUTION
This symbol shows that the operation manual should be read
carefully.
CAUTION
This symbol shows that a service personnel should be handling
this equipment with reference to the installation manual.
CAUTION
This symbol shows that information is available such as the
operating manual or installation manual.
IMPORTANT NOTE:
Read this manual carefully before installing or
operating your new air conditioning unit. Make
sure to save this manual for future reference.
Explanation of symbols displayed on the unit:
Caution: Risk of fire/
flammable materials
(Required for R32/R290 units only)
TABLE OF CONTENTS
SAFETY PRECAUTIONS
4
SAFETY COMPLIANCE
5
PREPARATION
INTRODUCTION/TECHNICAL DATA
ACCESSORIES
WINDOW KIT INSTALLATION
CONTROL PANEL AND OPERATION INSTRUCTIONS
REMOTE CONTROL
CARE AND MAINTENANCE
STORAGE
TROUBLESHOOTING
WARRANTY
6
7
8
8 - 11
12 - 13
14 - 15
15 - 16
17
18 - 19
20
PAGE
Page 3

-
-
Read Safety Precautions Before Operation and Installation
To prevent death or injury to the user or other people and property damage, the following instructions must be followed.
Incorrect operation due to ignoring instructions may cause death, harm, or damage.
Installation must be performed according to the installation instructions. Improper installation can cause water
leakage, electrical shock, or fire.
Use only the included accessories and parts, and specified tools for the installation. Using non-standard parts can
cause water leakage, electrical shock, fire, and injury or property damage. Make sure that the outlet you are using is
grounded and has the appropriate voltage.
The power cord is equipped with a three-prong grounding plug to protect against shock.
Voltage information can be found on the nameplate of the unit.
Your unit must be used in a properly grounded wall receptacle. If the wall receptacle you intend to use is not
adequately grounded or protected by a time delay fuse or circuit breaker (the fuse or circuit breaker needed is
determined by the maximum current of the unit. The maximum current is indicated on the nameplate located on the
unit), have a qualified electrician install the proper receptacle.
Install the unit on a flat, sturdy surface. Failure to do so could result in damage or excessive noise and vibration.
The unit must be kept free from obstruction to ensure proper function and to mitigate safety hazards.
Do not modify the length of the power cord or use an extension cord to power the unit.
Do not share a single outlet with other electrical appliances. Improper power supply can cause fire or electrical shock.
Do not install your air conditioner in a wet room such as a bathroom or laundry room. Too much exposure to water
can cause electrical components to short circuit.
Ensure there is a minimum of 36" clearance around the unit and that it is clear from any combustible items such as
propane, fire extinguishers, fuel, etc.
The exhaust hose should always be used and should never be covered or blocked, as this can become a fire hazard.
The unit has wheels to facilitate moving. Make sure not to use the wheels on thick carpet or to roll over objects, as
these could cause tipping.
Do not operate a unit that has been dropped or damaged.
Do not place the portable air conditioner close to any other heat-generating appliances.
Do not touch the unit with wet or damp hands or when barefoot.
If the air conditioner is knocked over during use, turn off the unit and unplug it from the main power supply
immediately.
Visually inspect the unit to ensure there is no damage.
If you suspect the unit has been damaged, contact a technician or customer service for assistance.
In a thunderstorm, the power must be cut off to avoid damage to the machine due to lightning.
Your air conditioner should be used in such a way that it is protected from moisture (e.g., condensation, splashed
water, etc.).
Do not place or store your air conditioner where it can fall or be pulled into water or any other liquid. Unplug
immediately if it occurs.
All wiring must be performed strictly in accordance with the wiring diagram located inside the unit.
The unit's circuit board (PCB) is designed with a fuse to provide overcurrent protection. The specifications of the fuse
are printed on the circuit board, such as: T 3.15A/250V, etc.
When the water drainage function is not in use, keep the upper and the lower drain plug firmly plugged into the unit
to prevent choking.
CAUTION
Page 4
This appliance 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. Children should be supervised to ensure that they do
not play with the appliance.
Children must be supervised around the unit at all times.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent, or similarly qualified
persons in order to avoid a hazard.
Prior to cleaning or other maintenance, the appliance must be disconnected from the supply mains.
Do not remove any fixed covers. Never use this appliance if it is not working properly, or if it has been dropped or
damaged.
SAFETY PRECAUTIONS

CAUTION
WARNING
SAFETY COMPLIANCE
-
-
Do not remove any fixed covers. Never use this appliance if it is not working properly or if it has been dropped or
damaged.
Do not run cord under carpeting. Do not cover the cord with throw rugs, runners, or similar coverings. Do not route
the cord under furniture or appliances. Arrange the cord away from traffic areas and where it will not be tripped over.
Do not operate the unit with a damaged cord, plug, power fuse, or circuit breaker. Return to an authorized service
facility for examination and/or repair.
To reduce the risk of fire or electric shock, do not use this fan with any solid-state speed control device.
The appliance shall be installed in accordance with national wiring regulations.
Contact the manufacturer or authorized service technician for repair or maintenance information of this unit.
Contact the manufacturer or authorized installer for installation questions of this unit.
Do not cover or obstruct the inlet or outlet grilles.
Do not use this product for functions other than those described in this instruction manual.
Before cleaning, turn off the power and unplug the unit.
Disconnect the power if strange sounds, smell, or smoke comes from the unit and contact the manufacturer or
authorized service technician for assistance.
Do not press the buttons on the control panel with anything other than your fingers.
Do not remove any fixed covers. Contact Whynter Customer Support if this unit is not working properly or if it has
been dropped or damaged.
Do not operate or stop the unit by inserting or pulling out the power cord plug.
Do not use hazardous chemicals to clean or come into contact with the unit. Do not use the unit in the presence of
inflammable substances or vapor such as alcohol, insecticides, petrol, etc. Always transport your air conditioner in a
vertical position and stand on a stable, level surface during use.
Always contact Whynter Customer Support for replacement parts compatible with your unit. Hold the plug by the
head of the power plug when taking it out.
Turn off the product when not in use.
Page 5
The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames,
an operating gas appliance, or an operating electric heater).
Do not pierce or burn the unit.
Be aware that the refrigerants may not contain an odor.
Keep ventilation openings clear of obstruction.
The appliance shall be stored so as to prevent mechanical damage from occurring.
A warning that the appliance shall be stored in a well-ventilated area where the room size corresponds to the room
area as specified for operation.
Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid
certificate from an industry-accredited assessment authority, which authorizes their competence to handle
refrigerants safely in accordance with an industry-recognized assessment specification.
Servicing shall only be performed as recommended by the equipment manufacturer.
Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision
of a person competent in the use of flammable refrigerants.
Please follow the instructions carefully to handle, install, clear, and service the air conditioner to avoid any damage or hazard.
Flammable Refrigerant R32 is used within the air conditioner.
When maintaining or disposing of the air conditioner, the refrigerant (R32) shall be recovered properly and shall
not discharge directly into the air.
No open fire or device that may generate sparks/arcing shall be near the air conditioner to avoid causing ignition of
the flammable refrigerant used.
Please follow the instruction carefully to store or maintain the air conditioner to prevent mechanical damage from occurring.
Flammable refrigerant R32 is used in the air conditioner. Please follow the instructions carefully to avoid any hazard.
For specific information on the type of gas and the amount, please refer to the relevant label on the unit itself.

PREPARATION
PRODUCT INSTALLATION
AMBIENT TEMPERATURE RANGE FOR UNIT OPERATING
MODE
Temperature Range
Cool
60-95°F (16-35°C)
Dry
55-95°F (13-35°C)
All illustrations in the manual are for explanation purposes only. Your machine may differ slightly. The unit can be controlled
either via the unit's control panel or with the remote controller. To ensure optimal performance, the design specifications of
both the unit and remote control are subject to change without prior notice.
Your installation location should meet the
following requirements:
Make sure that you install your unit on an even
surface to minimize noise and vibration.
The unit must be installed near a grounded plug,
and the manual drain outlet (found on the back
of the unit) must be accessible.
The unit should be located at least 30cm (12”)
from the nearest wall to ensure proper air
conditioning.
The exhaust outlet of the unit should be at least
50cm(19.7”) away from obstacles.
DO NOT cover the Intakes, Outlets or Remote
Signal Receptor of the unit, as this could cause
damage to the unit.
Page 6
Upper Air Filter
Upper Air Intake
Gravity Drain Outlet
Lower Air Intake
Exhaust Hose Outlet
Power Plug Socket
Power Cord Buckle
Manual Drain Outlet
Control Panel
Front Panel
Horizontal Louver
(swings automatically)
Casters (4)

INTRODUCTION
TECHNICAL DETAILS
Page 7
WHAT SHOULD I LOOK FOR WHEN PURCHASING A PORTABLE AIR CONDITIONER
The right air conditioner helps you cool a room efficiently. An undersized unit won’t cool adequately, while one too large will not
remove enough humidity, leaving the air feeling damp. To find the proper air conditioner, determine the square footage of the
room you want to cool by multiplying the room length by width. You also need to know the air conditioner’s BTU (British Thermal
Unit) rating, which indicates the amount of heat it can remove from a room. A higher number means more cooling power for a
larger room. (Be sure you are comparing only newer models to each other; older models may appear to have a higher capacity
but are the same). Be sure to “size up” if your portable air conditioner will be placed in a very sunny room, in a kitchen, or a room
with high ceilings. After finding the right cooling capacity or room, you can look at other features.
WHY IS THE COOLING CAPACITY LOWER ON NEWER MODELS THAN OLDER MODELS?
Federal regulations require manufacturers to calculate cooling capacity based on a specific test procedure, which was changed
just this year. Models manufactured before 2017 were tested under a different procedure and cooling capacity is measured
differently than in prior years’models. So, while the BTUs may be lower, the actual cooling capacity of the air conditioners has
not changed.
WHAT IS SACC?
SACC is the representative value of Seasonally Adjusted Cooling Capacity, in BTU/H, as determined in accordance with the DOE
test procedure at title 10 Code of Federal Regulations (CFR) 430, subpart B, appendix CC and applicable sampling plans.
SPECIFICATIONS
DETAILS
Operational Modes
Auto, Cool, Dry, and Fan
Cooling Capacity
12800 BTU | 10000 SACC
Coverage Area
500 sq. ft.
Fan Speed
Continuous/Auto/Low/Medium/High
Noise Level (dBA)
50/53/56
Temperature Range
60°F-86°F (16°C-30°C)
Timer
Up to 24 Hours
Refrigerant
R-32
Power Consumption
1212W
Amps
11.9
Power Supply
115V/60Hz
CEER/EER
12.1 / 2.9
Net Weight
55.34 lbs
Unit Dimensions
17.36" W x 15.63" D x 28.62" H
INVERTER TECHNOLOGY
As pioneers in the air comfort space, we are introducing next-generation technology currently used only in high-efficiency ductless
mini-split air conditioners. The Inverter technology will be featured in our NEX line of portable air conditioners. By utilizing this
much more efficient technology, Whynter’s Inverter variable-speed system allows the compressor to optimize efficiency and
power consumption together while maintaining a specified output. This allows for a much quieter operation and significantly
reduced energy consumption.
Below are the advantages of inverter technology:
At least 40% - 50% cheaper to run as it consumes less power
Quicker to achieve desired temperature
Quieter operation
No temperature fluctuations
No voltage peaks from the compressor

WINDOW KIT INSTALLATION
ACCESSORIES
Image
Accessory
Qty
Unit Adapter (AA)
1 piece
Exhaust/Intake Hose
(BB)
2 pieces
Window Slider
Adapter (CC)
2 pieces
Gravity Drain Hose
1 piece
Foam Seal A (DD)
4 pieces
Foam Seal B (EE)
2 pieces
Foam Seal C (FF)
2 pieces
Image
Accessory
Qty
Window Slider A (GG)
1 piece
Window Slider B (KK)
1 piece
Window Slider C (HH)
1 piece
Security Bracket and 2
Screws (JJ)
1 set
Bolt (II)
2 pieces
Remote Control
1 piece
Round Air Intake Filter
1 piece
Washable Upper Air
Filter
1 piece
Minimum: 28.7"
Maximum: 82"
Page 8
28.7"
28.7"
28.7"

WINDOW KIT INSTALLATION
3
Cut the adhesive foam seal A (DD) and B (EE) strips to the proper lengths, and attach them to the window sash and
frame as shown below.
Complete sealing of window
1
2
NOTE: Please install the exhaust hose assembly
according to the fittings in your kit.
NOTE: Please base your window slider installation
on the accessories in your kit and the width of your
window
1. Choose the window sliders according the size of
your window. Sometimes, it needs to be cut short to
meet the window size, please take extra care to cut
it properly.
2. Use bolts (II) to fasten the window sliders (GG, HH
and KK ) once they are adjusted to the proper
length
Press the exhaust/ intake hose (BB) into the window slider
adaptor (CC). Connect the unit adaptor (AA) to the
exhaust hose, and automatically clamp using the elastic
buckles of the adaptors. Set aside until the window slider
kit is installed.
Exhaust and Intake Hose assembly
installation
Preparing the Adjustable Window Slider
Page 9
Intake hose
assembly B

WINDOW KIT INSTALLATION
4b:Sliding Window Installation
NOTE: Once the Exhaust Hose assembly and Adjustable Window Slider are prepared, choose from one of the
following two installation methods.
4
Cut the adhesive foam seal A (DD) and B (EE)strips to the proper lengths, and attach them to the window sash and
frame as shown below.
4a:Hung Window Installation
Page 10

WINDOW KIT INSTALLATION
5
Intake hose
assembly B
Exhaust hose
assembly A
6
Insert the window slider adaptors connected to the exhaust and intake hoses into the window slider holes.
Connect the adaptor to and the window
Slide the exhaust hose into the exhaust air outlet opening of
the unit along the lower groove making sure to catch the
hook into the hook seat.
Install the Exhaust and Intake hose assembly to the unit
Page 11
Push the intake hose into the air outlet
opening of the unit along the arrow
direction.

CONTROL PANEL AND OPERATING INSTRUCTIONS
1. POWER / WIRELESS button
Press the Power Button to turn on or off the unit.
To activate wireless connection mode, press and hold the POWER button for 3 seconds until 'AP' appears on the
LED display. Successful router connection within 8 minutes exits wireless mode, illuminating the Wireless
indicator. Failure exits mode automatically.
Select the operating mode in the sequence: AUTO, COOL, DRY, and FAN. The appropriate LED indicator light
will light to show which mode is active.
2. MODE button
AUTO mode
When you set the air conditioner to AUTO mode, it will automatically select cooling, or fan-only operation
depending on what temperature is selected and the room temperature.
The air conditioner will control the room temperature automatically at the temperature point set by you.
When in AUTO mode, you can not select the fan speed.
NOTE: When in AUTO mode, both the AUTO mode and the actual operation mode indicator lights illuminate for
some models.
COOL mode
When in COOL mode, Press the UP and DOWN buttons to select your desired room temperature. The
temperature can be set within a range of 60°F-86°F/16°C-30°C
Press the FAN button to choose the fan speed.
DRY mode
Press the MODE button until the DRY indicator light comes on. When in Dry mode, the fan speed and the
temperature cannot be adjusted. The fan motor operates at AUTO speed.
FAN mode
When in FAN mode, press the FAN button to choose the fan speed. The temperature can not be adjusted.
Do not put the duct to window.
3. UP and DOWN buttons
Press to adjust (increasing/decreasing) temperature settings in 1°F/1°C increments
Press to adjust Timer setting in a range of 0-24hrs.
The control is capable of displaying temperature in degrees Fahrenheit or degrees Celsius. To convert from one
to the other, press and hold the Up and Down buttons at the same time for 3 seconds.
Page 12

CONTROL PANEL AND OPERATING INSTRUCTIONS
4. DISPLAY WINDOW
Shows the temperature in °C or °F and the Auto-timer settings.
5. TIMER button
Press to initiate the AUTO ON start time and AUTO OFF stop time program, in conjunction with the UP & DOWN
buttons. The timer on/off indicator light illuminates when the timer is set.
6. SWING/VENT button
Press to initiate the swing feature. Press SWING button once to start the louver moving, and press again to stop
the louver in the desired direction.
7. Continuous FAN mode
Control the fan speed. Press to select the fan speed in four steps: LOW, MED, HIGH and AUTO. The fan speed
indicator light illuminates under different fan settings.
NOTE: When in COOL or DRY mode, press the button for 3 seconds until the continuous fan indicator light
comes onto turn on the constant fan function. Press the button for 3 seconds to turn it off.
8. SLEEP mode
When in SLEEP mode the indicator light above the SLEEP button will illuminate, and the selected temperature will
increase (cooling) by 1°C/2°F(or 1°F) for 30 minutes. This new temperature will be maintained for 7 hours before it
returns to the originally selected temperature. This ends the Sleep mode and the unit will continue to operate as
originally programmed.
NOTE: This feature is unavailable under FAN or DRY mode.
Reset Filter
Press and hold on the SLEEP button for 3 seconds to initiate the reset filter connection mode. This feature is a
reminder to clean the Air Filter for more efficient operation. The filter light will illuminate after 250 hours of
operation. To reset after cleaning the filter and replacing the carbon filter, press the SLEEP button and the light
will go off.
NOISE LEVEL
AUTO RESTART
COMPRESSOR LOCK OUT
Portable air conditioners may make sounds that are not familiar to you. The sounds listed below are normal. Noise
reflecting off hard surfaces such as a floor or wall can make the sounds seem louder than they actually are.
The compressor may make a pulsating or high-pitched sound
Water running from the evaporator to the water tank may make a splashing sound
Refrigerant flowing may make a gurgling sound
Fan sound may come from front and back air vents
This portable air conditioner is optimized to operate in an ambient temperature of 60-95°F. The compressor circuit has
an automatic 3 minute time delayed start if the unit is turned off and on quickly. This prevents overheating of the
compressor and possible circuit breaker tripping.
In the event of a power outage, the air conditioner restarts at the previously set function mode and settings when
power is restored.
I SENSE FEATURE
The remote control functions as a thermostat, ensuring precise temperature control. It integrates an efficient sensor and
activates the I SENSE feature with a dedicated button. Once activated, it transmits temperature signals to the air
conditioner every 3 minutes, canceling if inactive for 7 minutes.
NOTE: Not applicable in DRY and FAN mode. Changing modes or turning off the unit disables the feature. Requires the
remote within 26 feet of the indoor unit for optimal function.
Page 13

REMOTE CONTROL
Page 14
The portable air conditioner can be switched on by the remote control. To transmit signals from the remote control to
the air conditioner, point the front part of the remote handset towards the control panel on the air conditioner.
Reception of the signal is confirmed by a beep. The maximum signal transmission distance is approximately 8
meters/26 feet.
NOTE:
Other appliances in the same room controlled by a remote control (TV, radio, stereo, etc.), may cause
interferences
Electronic and fluorescent lamps may interfere with the signal transmissions between the remote control and the
air conditioner
Remove the batteries if the remote control is not used for long periods
Displays the current selected mode (Auto, Cool,
Dry, or Fan)
Displays when the remote is turned on, and
disappears when it is turned off
Displays when TIMER ON is set
Displays when TIMER OFF is set
Displays auto-swing feature is turned, and
disappears when it is turned off
Displays the set temperature or timer setting when
using ON/OFF functions "h (hours)" indicator is
shown when timer settings are activated
Displays when the remote is turned on and
disappears when it is turned off
Displays temperature scale Fahrenheit or Celsius
Indicated all the current settings are locked
Displays when SLEEP function is activated
Displays when I SENSE function is activated
Displays the current selected fan speed
Increases set temperature/time
Decreases set temperature/time
Controls the function modes: Auto, Cool, Dry,
and Fan
Turns the unit On and Off
Controls the fan speeds: Auto, High, Medium, or
Low (Continuous mode cannot be set using the
remote control)
Press to stop or start louver auto-swing feature
Starts or stops louver movement and set louver angle
Enables the Timer On
Press to initiate I SENSE feature
Press I SENSE and TIMER OFF buttons to lock
current settings
Enables the Timer Off
Press this button to turn on and turn off the display
on the indoor unit
Press to change Temperature Scale (Fahrenheit or
Celsius)
Mode indicator
Wireless indicator
Timer On indicator
Timer OFF indicator
Swing indicator
Temperature/Timer display (h)
Remote Control indicator
Temperature Scale indicator
Lock settings indicator
Sleep Feature indicator
I Sense Feature indicator
Fan Speed indicator
Up button
Down button
Mode button
Power button
Fan Speed button
Swing Feature button
Sleep Feature button
Timer ON button
I Sense Feature button
Lock Setting button
Timer OFF button
LED Display button
Temperature Scale button
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

REMOTE CONTROL
CARE AND MAINTENANCE
Page 15
REPLACING THE REMOTE BATTERIES
This remote control comes with two AAA batteries. Place the batteries in the
remote control before use.
Slide the back cover from the remote downward to expose the battery
compartment.
1.
Insert the batteries, ensure to match the (+) and (-) symbols on the ends of the
batteries with the symbols inside the battery compartment.
2.
Slide the battery cover back into place. 3.
Notes:
The air conditioner will not respond if curtains, doors, or other materials block the signal from the remote control to
the unit.
Prevent any liquid from contact with the remote control. Do not expose the remote control to direct sunlight or heat.
If the infrared signal receiver on the indoor unit is exposed to direct sunlight, the air conditioner may not function
properly. Use curtains to prevent the sunlight from falling on the receiver.
Do not mix old and new batteries or batteries of different types.
Do not leave the batteries in the remote control if it is not going to be used for more than two months.
SAFETY PRECAUTIONS
Always unplug the unit before cleaning or servicing.
DO NOT use flammable liquids or chemicals to clean the unit.
DO NOT wash the unit under running water. Doing so causes
electrical danger.
DO NOT operate the portable air conditioner if the power
supply was damaged during cleaning. A damaged power cord
must be replaced with a new cord. Contact Whynter Customer
Support for more information.
WATER DRAINAGE
When the internal drain pan becomes full the appliance will beep 8
times and the digital display will show error code P1. The air
conditioning or dehumidifying action will stop but the fan may
continue to operate. Ensure that the appliance is turned off and
unplugged and that it is close to a floor drain or to an external
container.
A. Manual Drain Plug
Remove the drain plug and allow the collected condensation to
drain completely into a shallow external container. Replace the
bottom manual drain plug, pressing firmly to ensure a tight fit and
no leaks.
B. Continuous Gravity Drain
During dry mode, install continuous drain option so that the
appliance will automatically drain collected water. Remove the
upper drain plug and attach the included drain hose. Place the
open end of the drain hose over the receptacle that the appliance
will drain into; this could be a basement floor drain, a sink, or
similar. Ensure that there are no kinks or bends in the drain hose
and that it goes straight down toward the floor. The continuous
drain is activated by gravity only. If the hose is not positioned
directly downwards, water will not drain correctly.
A
B
Remove lower
manual drain plug

CARE AND MAINTENANCE
Page 16
Unplug the appliance before cleaning or servicing. Clean the cabinet with a lukewarm damp cloth and neutral
detergent. Dry the cabinet with a lint-free dry cloth.
Do not use gasoline, paint thinner, or other chemicals to clean the appliance.
Do not wash the appliance directly under a tap or using a hose. It may cause electrical damage.
UNIT CLEANING
The two washable air filters should be cleaned every two weeks to ensure efficient performance. In households
with animals, the air filters may need to be cleaned more often and the external grills may need to be wiped to
prevent blocked air flow.
To access the filters:
Switch off the air conditioner. 1.
Press down on the two tabs to release the upper air intake and lower air intake grilles. 2.
Use a vacuum cleaner or tap lightly to remove loose dust and dirt. 3.
Rinse the filters thoroughly under warm running water (no hotter than 100°F.) 4.
Dry thoroughly before re-inserting the filters.5.
AIR FILTERS
DISPOSAL
This appliance should not be treated as regular household waste. Check for local regulatory compliance
regarding the approved and safe disposal of this appliance.
ERROR CODES
P1 - water tray is full - attach drain hose and drain excess water
If any of the error codes below appear on the display, unplug the air conditioner and allow it to sit undisturbed for 5
minutes. If the error code persists when the unit is plugged back in, please contact Whynter Customer Support.
EH60 - Room temperature sensor error.
EH61 - Evaporator temperature sensor error.
EC52 - Condenser temperature sensor error
EH0b - Display panel communication error.
EL0C - Refrigerant leakage detection malfunction.
To prevent damage to
the buckles, do not
remove the component

STORAGE
Page 17
Drain the unit’s water collection
tray then reinstall the bottom
drain plug back in.
Please refer to the actual plug,
and the legend is for reference
only.
Be sure to store the unit in a cool, dark place. Exposure to direct sunshine or extreme heat can shorten the lifespan of
the unit.
The cabinet and front may be dusted with an oil-free cloth or washed with a cloth dampened in a solution of warm
water and mild liquid dishwashing detergent. Rinse thoroughly and wipe dry.
Never use harsh cleansers, wax or polish on the cabinet front.
Be sure to wring excess water from the cloth before wiping around the controls. Excess water in or around the
controls may cause damage to the unit.
Drain the unit’s water collection tray according to the instructions in the following section. 1.
Run the appliance on FAN mode for 12 hours in a warm room to dry it and prevent mould.2.
Turn off the appliance and unplug it.3.
Clean the appliance by wiping its surfaces with a soft cloth dampened.4.
Clean the air filter according to the instructions in the previous section. Reinstall the clean, dry filter before storing.5.
Remove the batteries from the remote control.6.

CARE AND MAINTENANCE
TROUBLESHOOTING
Problem
Possible Causes
Solutions
The portable air conditioner does
not turn on
Power failure / outage
The automatic switch, line fuse, or
breaker has been tripped
The power supply voltage is too low
The power cord is damaged - The
L.C.D.I. power plug for the unit is
tripped
The internal water reservoir is full,
and "P1" appears on display
Restore the power supply
Flip the switch / change the fuse / turn
the breaker back on. Also, note that
you may have too many appliances
drawing power on one circuit, so you
may need to move other appliances to
another circuit
Move the unit onto another circuit
with the correct voltage - Call for
service. Only authorized personnel
should replace damaged power cords
or power plugs
Press the Reset button on the L.C.D.I.
power plug
Drain water from the air conditioner
Possible loose internal connection
Contact Whynter for service
The unit turns on but the
compressor does not turn on (the
fan runs, but the unit is not
cooling)
The room temperature is outside of
the operational tolerances of the unit
The Cooling mode is not on
The compressor has not turned on
yet because of its time delay
The set temperature is too high -
The internal water reservoir is full,
and "P1" appears on display
This unit is designed to work in
ambient temperatures of 60°F to 90°F
Press the MODE button until the
COOL light is shown on the display
Give the compressor 3 minutes to turn
on after the Cooling mode has been
selected
Set the air conditioner to a lower
temperature
It is recommended to set the
temperature to at least 5°F below the
ambient temperature
Either manually drain the water by
removing the drain plug or allow the
unit to exhaust the water itself by
running the fan-only mode. Then,
cooling will resume
Possible loose internal connection
Contact Whynter for service
The air coming out of the unit is
not very cold, or the airflow
volume is weak
The filters are dirty or obstructed
The air intake or exhaust is
obstructed
The unit is set in DRY or FAN mode
The unit is set to low fan speed
Clean the air filters
Make sure there is at least 20 inches of
clearance from the air intake. Ensure
the length of the exhaust hose is as
short as possible
Set the unit to the cooling mode
Set the unit to a higher fan speed
Page 18
Many common portable air conditioner problems are easily resolved. Try the troubleshooting suggestions below to see if
the problems can be resolved before having to contact the service department.

CARE AND MAINTENANCE
TROUBLESHOOTING
Problem
Possible Causes
Solutions
The unit has worked for a
long time, but the room is
not cold enough
Windows or doors are open -
There are too many people in the
room
There is direct sunshine into the
room
The room is a kitchen or has many
heat-producing appliances
There is a server in the room
The room is too large
Close all windows and doors
You may need additional cooling or
another air conditioner
Close curtains or blinds and try to
minimize the amount of direct
sunlight in the room
You may need additional cooling or
another air conditioner
The unit is very noisy
The unit is not level
The surface underneath the unit is
uneven
Low power voltage
Make sure the unit is on a hard, level,
and stable surface
Move the unit to a location with a
level and hard floor
Ensure the wall outlet supports the
required power consumption of the
air conditioner and do not use an
extension cord
The unit leaks water
The unit is tilted or not leveled
The water tank is full
Make sure the unit is leveled - Drain
water from the drain plug at the back
of the air conditioner
Fan speed cannot be
changed
Fan speed differences are not very
noticeable
The fan speed difference is not very
noticeable when the compressor is on
Try setting the unit to Fan-only mode,
you should be able to hear the
difference between high and low fan
speed settings
Page 19
Many common portable air conditioner problems are easily resolved. Try the troubleshooting suggestions below to see if
the problems can be resolved before having to contact the service department.

To obtain service or information, contact Whynter LLC via email at
[email protected] or call 866-WHYNTER.
Product contents and specifications may change without notice.
Copyright © 2025
WWW.WHYNTER.COM
Page 20
ONE YEAR LIMITED PARTS WARRANTY
THREE YEAR WARRANTY ON COMPRESSOR
This WHYNTER product is warranted to the original owner, purchased from an authorized Whynter dealer within
the 48 U.S. continental states, for one year from the original purchase date against defects in material and
workmanship under normal residential usage. Should your WHYNTER product prove defective within one year
from the date of purchase, contact Whynter's Customer Support team with the serial number and proof of
purchase to make a warranty claim. A Return Authorization number must be issued before returning any parts or
products. Parts or products received without a Whynter-issued Return Authorization number will be
refused.Under this warranty, Whynter will repair or replace any parts found defective with new or remanufactured
parts or exchange the defective product with a new, refurbished, or remanufactured product at Whynter’s
discretion. All defective products and parts covered by this warranty will be repaired or replaced on a mail-in
basis to Whynter’s Service Center. This warranty is not transferable. After the expiration of the warranty, the cost
of labor and parts will be the responsibility of the original owner.
The compressor of the portable air conditioner is warranted for an additional two years after the one-year limited
warranty expires from the date of purchase.
After two months to one year, the customer will be responsible for the return freight cost to Whynter’s Service
Center. Please package the product carefully in its original packaging to avoid damage during transit. Whynter is
not responsible for damage resulting from shipper mishandling or improper packaging. Please retain the original
box and packaging materials.
THIS WARRANTY DOES NOT COVER:
Acts of God, such as fire, flood, hurricanes, earthquakes, and tornadoes.
Improper power supply, such as power surges, low voltage, defective household wiring, or inadequate fuses.
Use in commercial or industrial applications.
Damage (accidental or otherwise) to the product while in the possession of a consumer that is not caused by a
defect in material or workmanship.
Damage caused by consumer misuse, tampering, lack of maintenance, or failure to follow the care and special
handling provisions in the instructions.
Damage to the finish of the case or other appearance parts caused by wear.
Damage caused by unauthorized repairs or alterations to the product.
Removal, Replacement Packaging, Freight, and Insurance costs for warranty service.
Products sold AS-IS or from an unauthorized reseller.
Products that have had their serial numbers removed or defaced.
DISCLAIMER OF IMPLIED WARRANTIES & LIMITATION OF REMEDIES
CUSTOMER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS LIMITED WARRANTY SHALL BE PRODUCT REPAIR OR REPLACEMENT AS
PROVIDED HEREIN. CLAIMS BASED ON IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE, ARE LIMITED TO ONE YEAR OR THE SHORTEST PERIOD ALLOWED BY LAW, BUT NOT LESS THAN ONE YEAR.
WHYNTER SHALL NOT BE LIABLE FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, SUCH AS PROPERTY DAMAGE AND
INCIDENTAL EXPENSES RESULTING FROM ANY BREACH OF THIS WARRANTY. SOME STATES AND PROVINCES DO NOT ALLOW THE
EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, OR LIMITATIONS ON IMPLIED WARRANTIES, SO
THESE EXCLUSIONS MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, BUT YOU MAY HAVE OTHER
RIGHTS THAT VARY FROM STATE TO STATE.
