Toshiba RAC-WK1823ESCWRU User manual

USER MANUAL
Safety Precautions
Operating Instructions
Installation Instructions
Remote Control and App
Instructions
Troubleshooting Tips
Care and Cleaning
RAC-WK1823ESCWRU (18,000 BTU)
Window Type
Room Air Conditioner
Warning notices: Before using this product,
please read this manual carefully and keep
it for future reference.
change without prior notice for product
improvement. Consult with your dealer or
the manufacturer for details.
www.toshiba-lifestyle.com0202-70-Anoisrev
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version B - 09 - 2021 (PREVIEW07)

Page 2 User Manual
Read This Manual
Inside you’ll find many helpful hints on how to use and maintain your air conditioner properly. Just
a little preventive care on your part can save you a great deal of time and money over the life of
your air conditioner. You’ll find many answers to common problems in the troubleshooting tips -
you should be able to fix most of them quickly before calling service. These instructions may not
cover every possible condition of use, so common sense and attention to safety is required when
installing, operating and maintaining this product.
Owner’s Manual
Safety Precautions .................................................................................................................... 3
Operating Instructions ............................................................................................................ 8
Installation Instructions ....................................................................................................... 12
Care and Cleaning ................................................................................................................. 21
Troubleshooting Tips ............................................................................................................ 22
Remote Control and App Instructions ........................................................................... 24
• 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.
• For support, please call the Service Center at 1-855-204-5313.
• Children should be supervised to ensure that they do not play with the air conditioner.
• The appliance shall be installed in accordance with national wiring regulations.
• Do not operate your air conditioner in a humid room such as a bathroom or laundry room.
CAUTION

User Manual Page 3
SAFETY PRECAUTIONS
To prevent injury to the user or other people and property damage, the instructions shown here must be
followed. Incorrect operation due to ignoring of instructions may cause harm or damage. The level of risk
is shown by the following indications.
Safety
Precautions
WARNING This symbol indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
This symbol indicates a hazardous situation, which, if not avoided,
could result in minor or moderate injury.
NOTICE
This symbol addresses practices not related to physical injury.
• Be sure the air conditioner has been securely and correctly installed according to the
installation instructions in this manual. Save this manual for possible future use in removing or
installing this unit.
• Plug in power cord plug properly.
Otherwise, it may cause electric shock or re due to excess heat generation.
• Do not modify power cord length or share the outlet with other appliances as it may cause
electric shock or re due to overheating.
• Always ensure eective grounding.
Incorrect grounding may cause electric shock.
• Unplug the unit if you notice unusual sounds or smells or smoke coming from it.
A damaged product may cause re and electric shock.
• Ventilate room before operating the air conditioner if there is a gas leakage from another
appliance.
• Do not operate or stop the unit by inserting or pulling out the power cord plug.
• Do not operate with wet hands or in very humid environments.
It may cause electric shock.
• Do not allow water to come into contact with any electric parts.
It may cause failure or electric shock.
• Do not use the socket if it is loose or damaged.
It may cause re and electric shock.
• Do not use or keep the power cord close to heating appliances.
It may cause re and electric shock.
• Do not use any devices or materials for installation that are not recommended in this manual.
• Do not disassemble or modify unit.
It may cause failure and electric shock.
WARNING

Page 4 User Manual
Safety
Precautions
• Do not damage or use an alternate power cord.
It may cause re and electric shock.
If the power cord is damaged, it must be replaced by the manufacturer or an authorized service
center or a similarly qualied person in order to avoid a hazard.
• Do not direct airow straight into persons to avoid possible health hazard.
• Do not open the unit during operation.
It may cause electric shock.
• Do not use the power cord near ammable gas or combustibles, such as gasoline, benzene,
thinner, etc.
It may cause an explosion or re.
• Do not let children hang on the air conditioner or bracket.
A serious injury may occur.
• Avoid re hazard or electric shock. Do not use an extension cord or an adaptor plug. Do not
remove any prongs from the power cord.
• Be sure the air conditioner is properly grounded. To minimize shock and re hazards, proper
grounding is important. The power cord is equipped with a three-prong grounding plug for
protection against shock hazards.
• Your air conditioner 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, have a qualied electrician install the proper receptacle. Ensure the receptacle is
accessible after the unit installation.
• Be sure the electrical service is adequate for the model you have chosen. This information can be
found on the serial plate, which is located on the side of the cabinet and behind the grille.
• Do not drink the drain water. It may contain mold and bacteria that can lead to death if ingested.
• When the air lter is to be removed, do not touch the metal parts of the unit.
It may cause injury.
• When the unit needs cleaning, switch o, and turn o the circuit breaker.
Do not clean unit when power is on as it may cause re, electric shock or injury.
• Do not place obstacles around air inlets or inside of air outlet.
It may cause failure or accident.
• Clean with a soft cloth only. Do not use strong detergents that contain wax or thinners as it may
damage the product.
• Use caution when unpacking and installing. Sharp edges could cause injury.
• Do not clean the air conditioner with water.
Water may enter the unit and degrade the insulation which could lead to electric shock.
WARNING
CAUTION

User Manual Page 5
Safety
Precautions
• Do not put a pet or house plant where it will be exposed to direct air ow.
This could injure the pet or harm the plant.
• Hold the plug by the head of the power plug when taking it out.
Otherwise, it may cause electric shock and damage.
• Ensure that the installation is properly secured to prevent the product from potentially falling.
• Do not place heavy objects on the power cord and ensure that the cord is not compressed.
Otherwise, there is danger of re or electric shock.
• If water is spilled on the unit, turn o the unit and switch o the circuit breaker. Isolate supply by
taking the power-plug out and contact a qualied service technician.
• Do not use near gas stove or other gas burning appliances, as air ow may aect gas
combustion.
• Do not use for any purpose other than room comfort.
Do not use this air conditioner to preserve precision devices, food, pets, plants, and art objects.
It may cause deterioration.
• Turn o the main power switch if the unit is not to be used for an extended time.
• Always insert the lters securely. Clean lter once every two weeks.
Operation without lters may cause failure.
CAUTION

Page 6 User Manual
Safety
Precautions
WARNING
This symbol shows that this appliance used a ammable refrigerant.
If the refrigerant is leaked and exposed to an external ignition source,
there is a risk of re.
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.
EXPLANATION OF SYMBOLS DISPLAYED ON THE UNIT
• Do not try to accelerate the defrosting process or methods of cleaning that are not
recommended by the manufacturer.
• The appliance shall be stored in a room without a continuously operating ignition source (for
example, open ames or an operating gas appliance) or an ignition source (for example, an
operating electric heater) close to the appliance. The appliance shall also be stored in a room
without ignition sources.
• Do not pierce or burn.
• Be aware that the refrigerants may not contain an odor.
• Keep ventilation openings clear of obstruction.
• Unit is only to be serviced by a Toshiba authorized servicer, please call Customer Service at
1-855-204-5313 for support.
• Flammable refrigerant R32 is used within air conditioner. Please follow the instructions carefully
to handle, install, clean, and service the air conditioner to avoid damage or hazard. Do not
dispose of air conditioner in regular trash. Contact qualied agency for proper disposal.
• No open re or devices that generate spark/arcing shall be around the air conditioner to avoid
causing ignition of the ammable refrigerant used. Please follow the instructions carefully to
store or maintain the air conditioner to prevent mechanical damage from occurring.
WARNING
Caution: Risk of fire/
flammable materials
(Required for R32/R290 units only)
IMPORTANT NOTE: Read this manual
carefully before installing or operating
your new air conditioning unit. Make sure
to save this manual for future reference.

User Manual Page 7
The power supply cord with this air conditioner
contains a current detection device designed
re.
In the event that the power supply cord is
damaged, itcan not be repaired. It must be
replaced with a cord from the manufacturer.
.
• Always make sure the RESET button is pushed in for correct operation.
• The power supply cord must be replaced if it fails to reset when either the TEST button is pushed,
or it can not be reset. Please contact Customer Service.
Grounding type wall receptacle
Do not, under any
circumstances, cut,
remove or bypass
the grounding prong.
Power supply cord with 3-prong grounding
plug and current detection device.
The power supply cord contains a current
measuring device that detects damage to the
power cord. Test your powersupplycord as
follows:
1. Plug in the airconditioner.
2. The power supply cord will have TWO
buttons on the plug head. Press the TEST
button. You willnotice a click as the RESET
button pops out.
3. Press the RESETButton. Youwill notice a click
as the button engages.
4. The power supply cord is now supplying
electricity to the unit. (On some products this
is also indicated by a light on the plug head.)
RESET
TEST
Plug in & press RESET
Operation of Current Device
NOTICE
NOTICE
Safety
Precautions

Page 8 User Manual
Normal Sounds
OPERATING INSTRUCTIONS
Operating
Instructions
RAC-WK18 Models
Gurgle/Hiss
Gurgling or hissing
noises may be heard due
to refrigerant flowing
through evaporator
during normal operation.
Sound of Rushing Air
In front of the unit, you
may hear the sound of
rushing air being moved
by the fan.
Vibration
Unit may vibrate and make
noise because of poor wall
or window construction or
incorrect installation.
Trickling Sound
Droplets of water
hitting condenser
during normal
operation may cause
a trickling sound.
High Pitched Sound
High efficiency compressors may
have a high pitched sound during
cooling cycle.
All the pictures in this manual are for illustrative purposes only. The actual appearance of the air
conditioner you purchased may vary slightly, but its operation and functions will be similar.
NOTICE
Air Conditioner Features (general)
This air conditioner is designed to be operated under the following conditions:
Cooling Operation
Outdoor temp.: 64 ~ 109°F / 18 ~ 43°C
Indoor temp.: 62 ~ 90°F / 17 ~ 32°C
To reduce the risk of fire, electrical shock, or injury to people or property, read the SAFETY
PRECAUTIONS before operating this appliance.
WARNING
• The relative humidity of room should be less than 80%. If the unit is used in a condition with a
relative humidity over 80%, there will be condensed water on the surface of the unit.
• Performance may be reduced outside of these operating temperatures.
NOTICE

User Manual Page 9
Operating
Instructions
To begin operating the air conditioner, follow these steps:
1. Set the temperature to the coldest setting.
2. Set the control to HIGH COOL.
3. Adjust the louver for comfortable air ow (see Air Directional Louvers).
4. Once the room feels cool, adjust to the temperature you nd most comfortable.
5. Make sure that the air ow inside and outside are not obstructed.
Air Directional Louvers
The louvers will allow you to direct the air ow Left
or Right, or Up and Down (optional on some models)
throughout the room as needed.
Move the Levers from side to side until the desired
LEFT/RIGHT direction is obtained.
You can also move the LEFT lever to adjust air ow
UP/DOWN as needed.
Levers
Air Direction
Always wait 3 minutes when turning the unit o and then on again, or when changing from cool to
fan and back to cool. This prevents damage from occurring to the compressor.
NOTICE
The Fresh Air Vent allows the air conditioner to:
1. Recirculate inside air – Vent Closed (See Fig. A)
2. Draw fresh air into the room - Vent Open (See Fig. B)
3. Exchange air from the room and draw fresh air into the room - Vent and Exhaust Open (See Fig. C).
FRESH AIR VENT CONTROL
Fig. A (VENT CLOSED) Fig. B (VENT OPEN) Fig. C (VENT & EXHAUST OPEN)

Page 10 User Manual
TO TURN UNIT ON OR OFF:
Press Power button to turn unit on or o.
NOTE: The unit will automatically initiate the Energy
Saver function under Cool, Dry, Auto modes.
TO CHANGE TEMPERATURE SETTING:
Press UP/DOWN button to change temperature
setting.
NOTE: Press or hold either UP ( ) or DOWN ( )
button until the desired temperature is seen on the
display.
This temperature will be automatically maintained
anywhere between 62°F (17°C) and 86°F (30°C). If
you want to display the actual room temperature,
see To Operate on Fan Only section.
TO ADJUST FAN SPEEDS:
Press the Fan Button to change the fan speed
between four settings – Auto, Low, Med, or High. The
fan will operate on Low Speed automatically when
set to Dry Mode.
On Auto mode,the fan operates on Auto fan speed
automatically and cannot be changed.
SLEEP FEATURE:
Press Sleep button to initiate the sleep mode. In
this mode the selected temperature will increase by
2°F (1°C) 30 minutes after the mode is selected.
The temperature will then increase by another 2°F/
1(or 2)°C after an additional 30 minutes. This new
temperature will be maintained for 7 hours before it
returns to the originally selected temperature.
The Sleep mode program can be cancelled at any time
during operation by pressing the Sleep button again.
CHECK FILTER FEATURE:
The Check Filter feature is a reminder to clean the
air filter for a more efficient operation. The light
will illuminate after 250 hours of operation. After
cleaning the filter, press the Filter button to reset
the Check Filter function turning the light off.
ENERGY SAVER FEATURE (ECO):
Press Energy Saver button to initiate this function.
This function is available on COOL, DRY, AUTO (only
AUTO-COOLING and AUTO-FAN) modes. The fan will
continue to run for 3 minutes after the compressor
shuts off. The fan then cycles on for 2 minutes at
10 minute intervals until the room temperature
is above the set temperature, at which time the
compressor turns back on and Cooling resumes.
TO SELECT THE OPERATING MODE:
To choose the operating mode, press the Mode
button. Each time you press the button, a mode is
selected in a sequence that goes from Auto, Cool,
Dry and Fan.
Key Pad Features
Energy
Saver
LED
Display
Clean
Filter
Timer
Button
Power
Button
Sleep
Button
Fan
Button
Up ( ) and Down ( )
Buttons
Mode
Button
Connect Indicator Light
(Smart models only)
Before you begin, thoroughly familiarize yourself with the control panel as shown below and all its
functions, then follow the symbol for the functions you desire. The unit can be controlled by the unit
control alone or with the remote.
Electronic Control Operating Instructions
Air Conditioner Features
Operating
Instructions