Toshiba RAC-WK1821ESCRU User Manual

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USER MANUAL

Safety Precautions

Unit Specications

Operating Instructions

Installation Instructions

Remote Control Operating

Instructions

Troubleshooting Tips

Care and Cleaning

RAC-WK0511CMU

RAC-WK0611CRU

RAC-WK0811ESCWU

RAC-WK1011ESCWU

RAC-WK1211ESCWU

RAC-WK1511ESCRU

RAC-WK1821ESCRU

Warning notices: Before using this product,

please read this manual carefully and keep

it for future reference.

The design and specications are subject to

change without prior notice for product

improvement. Consult with your dealer or

manufacturer for details.

version A - 09 - 2017 www.toshibaappliances.com

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Questions and Answers:

N
Nicole SmithAug 13, 2025
Why Toshiba RAC-WK1821ESCRU Air Conditioner does not start?
- J
  Jason JonesAug 13, 2025
  Your Toshiba Air Conditioner might not be starting due to several reasons: the wall plug may be disconnected (push it firmly into the outlet), a house fuse might be blown or the circuit breaker tripped (replace the fuse or reset the breaker), the plug current device may have tripped (press the RESET button), the power might be off (turn it ON and set to the desired setting), or the unit was turned off and then on too quickly (wait 3 minutes before restarting).
S
Samantha EricksonAug 17, 2025
Why is my Toshiba RAC-WK1821ESCRU Air Conditioner turning on and off rapidly?
- D
  Devin BuchananAug 17, 2025
  Your Toshiba Air Conditioner might be turning on and off rapidly because of a dirty air filter restricting airflow (clean the air filter). Another reason might be extremely hot outside temperatures, in which case you should set the FAN speed to a higher setting to increase airflow past the cooling coils.
A
Ashley GreenAug 21, 2025
What to do if Toshiba Air Conditioner is cooling, but the room is too warm and there is no ice forming?
- A
  Amy MartinAug 21, 2025
  If your Toshiba Air Conditioner is cooling but the room remains too warm without ice forming, consider the following: ensure the air filter is clean (refer to the Care and Cleaning section), set the temperature lower, properly position the air directional louvers for better air distribution, clear any blockage in front of the unit (drapes, blinds, furniture, etc.), close any open doors, windows, or registers, and allow additional time for the unit to remove stored heat from the room if it was recently turned on.
J
Justin LeblancAug 25, 2025
What to do if Toshiba Air Conditioner is cooling, but room is too warm and ice is forming?
- J
  John KramerAug 26, 2025
  If your Toshiba Air Conditioner is cooling, but the room is too warm and ice is forming on the cooling coil, it might be due to the outdoor temperature being below 18°C (64°F) - set FAN ONLY mode to defrost the coil. Also, the air filter may be dirty (clean it and set to FAN ONLY to defrost), or the thermostat is set too cold for night-time cooling (set to FAN ONLY to defrost, then raise the temperature setting).
A
amy75Aug 28, 2025
Why Toshiba Air Conditioner air from unit does not feel cold enough?
- P
  perezshannonAug 28, 2025
  If the air from your Toshiba Air Conditioner doesn't feel cold enough, it could be due to several reasons: the room temperature might be below 17°C (62°F) (cooling may not occur until it rises above this temperature), the temperature sensing element might be touching the cold coil behind the air filter (straighten the tube away from the coil). You can also try resetting to a lower temperature. If you recently changed modes, the compressor might be shut off (wait approximately 3 minutes for it to restart in COOL mode).
J
Jessica ChoiSep 1, 2025
What to do if water is dripping INSIDE my Toshiba RAC-WK1821ESCRU when it is cooling?
- S
  Susan ScottSep 1, 2025
  If water is dripping inside your Toshiba Air Conditioner while it's cooling, it's likely due to improper installation. Tilt the air conditioner slightly to the outside to allow for proper water drainage. Refer to the installation instructions or consult with the installer.
W
warddavidSep 5, 2025
Why is my Toshiba RAC-WK1821ESCRU making noise when cooling?
- D
  Dr. Megan KingSep 5, 2025
  The noise from your Toshiba Air Conditioner during cooling could be due to air movement sound (set to a slower FAN setting if it's too loud). It may also be window vibration caused by poor installation (refer to the installation instructions or check with the installer).
C
Catherine DelacruzSep 8, 2025
Why is remote sensing deactivating prematurely on my Toshiba Air Conditioner?
- K
  kimberly40Sep 9, 2025
  The remote sensing on your Toshiba Air Conditioner might be deactivating prematurely because the remote control is not located within range (place it within 20 feet and 180° radius of the front of the unit) or the remote control signal is obstructed (remove the obstruction).

Toshiba RAC-WK1821ESCRU Specifications

General

Power Supply	220-240V, 50Hz
Refrigerant	R32
Cooling Capacity	18000 BTU/h
Heating Capacity	18000 BTU/h
Operating Temperature (Cooling)	18-43°C

Summary

Owner's Manual

Safety Precautions

Essential safety guidelines for operating the air conditioner and preventing hazards.

Unit Specifications

Detailed technical specifications and performance data for all models.

Operating Instructions

Step-by-step guide on how to operate the air conditioner and its features.

Installation Instructions

Comprehensive guide for installing the air conditioner in various configurations.

Care and Cleaning

Procedures for routine maintenance, cleaning, and winter storage.

Troubleshooting Tips

Solutions for common problems encountered with the air conditioner's operation.

Remote Control Operating Instructions

Detailed instructions for using the remote control to operate the unit.

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