Arctic King WWK05CM91N User Manual (English)

Questions and Answers:

A
Anthony Gray MDAug 15, 2025
Why Arctic King WWK05CM91N Air Conditioner cooling, but room is too warm, with no ice forming?
- A
  Amy RiveraAug 16, 2025
  There might be several reasons why your Arctic King air conditioner is cooling, but the room remains too warm, and no ice is forming on the cooling coil: * The air filter may be dirty, consider cleaning it. * The temperature might be set too high, so try setting it to a lower temperature. * The air directional louvers might be positioned improperly, consider repositioning them for better air distribution. * The front of the unit might be blocked by drapes, blinds, furniture, etc., restricting air distribution, so clear any obstructions. * Doors, windows, or registers might be open, causing cold air to escape, so close them. * If the unit was recently turned on in a hot room, allow additional time to remove 'stored heat' from walls, ceiling, floor, and furniture.
L
Laurie VaughnAug 18, 2025
Why is my Arctic King WWK05CM91N Air Conditioner cooling, but room is too warm and ice is forming?
- J
  Jordan MarshallAug 19, 2025
  If your Arctic King air conditioner is cooling, but the room is too warm and ice is forming on the cooling coil, consider the following: * If the outdoor temperature is below 64°F (18°C), set the unit to FAN ONLY mode to defrost the coil. * A dirty air filter can cause this issue. Clean the filter and set the unit to FAN ONLY mode to defrost it. * If the thermostat is set too cold for night-time cooling, set the unit to FAN ONLY mode to defrost the coil, and then set the temperature to a higher setting.
S
Sharon CherryAug 21, 2025
Why is there noise when my Arctic King WWK05CM91N Air Conditioner is cooling?
- A
  Alexis BeanAug 21, 2025
  The noise you hear when your Arctic King air conditioner is cooling could be due to: * Normal air movement sound; if it's too loud, try setting the FAN to a slower speed. * Window vibration caused by poor installation; in this case, refer to the installation instructions or check with the installer.
A
Ashley ShortAug 25, 2025
What to do if my Arctic King WWK05CM91N does not start?
- A
  Andrew NobleAug 25, 2025
  If your Arctic King air conditioner isn't starting, here are a few things to check: * Make sure the wall plug is firmly pushed into the wall outlet. * Check if a house fuse has blown or a circuit breaker has tripped; replace the fuse with a time-delay type or reset the circuit breaker. * If the unit has a plug current device, check if it has tripped and press the RESET button. * Ensure that the power is turned on and set to the desired setting. * If the unit was recently turned off and then on quickly, turn it off and wait 3 minutes before restarting.
G
griffinmariaAug 27, 2025
Why does my Arctic King Air Conditioner turn on and off rapidly?
- R
  Richard ClarkAug 27, 2025
  Your Arctic King air conditioner might be turning on and off rapidly due to: * A dirty air filter restricting airflow, so try cleaning the air filter. * Extremely hot outside temperatures; in this case, set the FAN speed to a higher setting to circulate air past the cooling coils more frequently.
J
Jacob LaraAug 30, 2025
Why Arctic King Air Conditioner air from unit does not feel cold enough?
- W
  Wendy ParkerAug 30, 2025
  If the air from your Arctic King air conditioner doesn't feel cold enough, it could be due to these reasons: * If the room temperature is below 62°F (17°C), cooling may not occur until the room temperature rises above this level. * The temperature sensing element might be touching the cold coil behind the air filter; if so, straighten the tube away from the coil. * Consider resetting to a lower temperature. * If the compressor shut off by changing modes, wait approximately 3 minutes and listen for the compressor to restart when set in the COOL mode.
R
Robert SnyderSep 2, 2025
Why is my Arctic King Air Conditioner room too cold?
- D
  Dave FloresSep 2, 2025
  If your Arctic King air conditioner is making the room too cold, it's likely that the temperature setting is too low. Try increasing the temperature setting.
T
Thomas GreenSep 5, 2025
Why is water dripping outside when my Arctic King WWK05CM91N is cooling?
- A
  Amanda ArmstrongSep 5, 2025
  If water is dripping outside when your Arctic King air conditioner is cooling, it is normal during excessively humid days because the unit is removing a large quantity of moisture from the humid room.
E
Emily DavisSep 9, 2025
Why is water dripping inside when my Arctic King WWK05CM91N is cooling?
- N
  Natalie HunterSep 9, 2025
  If water is dripping inside when your Arctic King air conditioner is cooling, it is likely due to improper installation. Tilt the air conditioner slightly to the outside to allow for water drainage.
Y
yvonnesotoSep 12, 2025
Why is remote sensing deactivating prematurely on my Arctic King WWK05CM91N Air Conditioner?
- B
  Benjamin ShannonSep 12, 2025
  If the remote sensing is deactivating prematurely on your Arctic King air conditioner, make sure that: * The remote control is located within a 20 feet & 180° radius of the front of the unit. * There are no obstructions blocking the remote control signal; if there are, remove them.

Arctic King WWK05CM91N Specifications

General

Type	Window Air Conditioner
Cooling Capacity	5, 000 BTU
Room Size	Up to 150 sq. ft.
Energy Efficiency Ratio (EER)	11.0
Voltage	115V
Fan Speeds	2
Operating Modes	Cool, Fan
Air Filter	Washable
Installation	Window
Thermostat	Adjustable

Summary

Safety Precautions

Understanding Safety Symbols

Explains symbols indicating risk levels and appliance warnings.

General Electrical Safety

Covers proper plugging, grounding, and handling of power cords.

Operational and Environmental Safety

Safe Operation Practices

Advises on safe operation, cleaning, and avoiding hazards.

Environmental Considerations

Mentions ventilation for gas appliances and avoiding water contact.

Specific Safety Warnings and Guidelines

General Use and Preservation

Prohibits using the AC for preserving items and advises on extended non-use.

Refrigerant (R32) Safety

Details risks and handling procedures for flammable refrigerants.

Electrical Information and Grounding

Power Cord Safety

Highlights the current detection device and cord damage replacement.

Grounding Requirements

Emphasizes proper grounding for shock and fire hazard prevention.

Accident Prevention and Device Operation

Preventing Accidents

Lists general precautions for fire, shock, and injury.

Operation of Current Device

Explains how to test the power supply cord's current detection device.

Understanding Normal Sounds

Sound of Rushing Air

Describes the fan noise during operation.

High Pitched Chatter

Explains compressor noise during cooling.

Trickling Sound

Describes water droplets hitting the condenser.

Gurgle/Hiss

Explains refrigerant flow noises.

Vibration

Notes unit vibration from installation or construction.

Air Conditioner Operation Guide

Operating Conditions

Lists recommended outdoor and indoor temperatures for cooling and heating.

General Operating Notes

Covers humidity, performance outside temperature range, and control familiarity.

WKK05CM Unit Control Features

Thermostat Operation

Explains setting room temperature with the thermostat dial.

Cooling Mode Selection

Describes selecting cooling intensity (High Cool, Low Cool).

Fan Mode Selection

Explains choosing fan speeds for air circulation.

Electronic Control Operation

Turning Unit On/Off

How to use the ON/OFF button.

Temperature Setting

How to adjust temperature using UP/DOWN buttons.

Fan Speed Adjustment

How to select fan speed via the FAN button.

Advanced Operating Features

Sleep Feature

How to activate and manage sleep mode for temperature adjustments.

Check Filter Reminder

Explains the filter cleaning reminder function.

Energy Saver Feature

How to use the energy saving mode with fan/compressor cycling.

Operating Modes (Auto, Fan Only, Dry)

Details how to select and use Auto, Fan Only, and Dry modes.

Timer and Error Code Information

Auto Start/Stop Timer

How to set auto start and stop times for the unit.

Display and Error Codes

Explains the display readings and common error codes (AS, ES).

Additional Operating Information

Fresh Air Vent Control

Explains vent operation for recirculating, fresh air, and exhaust.

Air Directional Louvers

How to adjust louvers for up/down and left/right air direction.

Installation Requirements and Tools

Before You Begin Installation

General warnings and important notes before starting installation.

Window Compatibility and Measurements

Details window opening requirements and model measurements.

Tools Needed for Installation

Lists essential and recommended tools for installation.

Window Preparation and Unit Assembly

Preparing the Window Area

Instructions on window opening, airflow, and mounting hardware.

Assembling the Top Rail

Steps for attaching the top rail to the unit for specific models.

Installing Accordion Panels

Attaching Top Rail

Securing the top rail to the unit with screws.

Installing Side Panels

Guides on fitting and securing the accordion side panels.

Securing the Unit in the Window

Unit Placement and Tilt

Positioning the unit in the window and ensuring correct tilt for drainage.

Extending Side Panels

How to extend the side panels to fit the window frame.

Installing Support Bracket

Steps for attaching frame locks and support brackets to the window sill.

Installation Details and Storm Windows

Securing Lower Sash and Foam Seal

Attaching sash locks and inserting foam seal for secure fitting.

Handling Storm Window Obstructions

How to manage storm windows blocking the unit.

Removing AC from Window

Steps for safely removing the air conditioner from the window.

Care and Cleaning Procedures

Air Filter Cleaning

Instructions on checking, removing, washing, or vacuuming the air filter.

Cabinet Cleaning

How to clean the unit's exterior cabinet and controls.

Winter Storage

Guidance on storing the unit during winter.

Troubleshooting Common Issues

Unit Not Starting

Solutions for power issues, tripped breakers, and device errors.

Insufficient Cooling

Addresses issues with room temperature, ice formation, and dirty filters.

Rapid Cycling Issues

Explains why the unit might turn on/off rapidly.

Troubleshooting Noise and Water Issues

Noise During Operation

Explains normal sounds and vibration issues.

Water Dripping Problems

Solutions for water dripping inside or outside the unit.

Remote Sensing Issues

Troubleshooting for remote control range and obstruction.

Room Too Cold

How to adjust temperature when the room becomes too cold.

Remote Control Handling and Battery Replacement

Remote Control Location and Operation

Guidelines for using the remote control and signal reception.

Replacing the Remote Battery

Steps for replacing batteries in the remote control.

Remote Control Specifications and Notes

Technical Specifications

Lists model, voltage, range, and environmental specs for the remote.

Important Notes on Remote Use

Clarifies button design variations and manual precedence.

Remote Control Function Buttons

Basic Operation Buttons

Explains ON/OFF, Mode, Temp Up/Down, Timer, and Speed buttons.

Special Function Buttons

Details Energy Saver, One Touch, and Sleep mode buttons.

Operating Modes with Remote

Auto Operation Guide

How to use Auto mode with the remote, including notes.

Cooling/Fan Operation Guide

How to use Cool and Fan modes with the remote.

Advanced Remote Operations

Dehumidifying Operation Guide

How to use Dry mode with the remote.

Timer Operation Guide

How to set Auto Start/Stop timers using the remote.

Combined Timer Functions

Auto Stop > Auto Start

Setting the unit to stop and then start later.

Auto Start > Auto Stop

Setting the unit to start and then stop later.

Energy Saver Mode Details

Energy Saver Operation Explanation

How the fan and compressor cycle in Energy Saver mode.

Compliance and FCC Notes

Information on FCC compliance and potential interference.

Air Conditioner Limited Warranty

Warranty Coverage and Service

Details the one-year warranty and Midea's service responsibilities.

Consumer Responsibilities and Exclusions

Lists what the consumer must do and what the warranty does not cover.

Obtaining Warranty Service

Provides steps and contact information for warranty service.

Return Policy Information

Product Return Guidelines

Explains the 90-day return policy and warranty coverage after that period.

Customer Assistance

Provides customer service contact for assistance with installation or operation.

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Arctic King WWK05CM91N User Manual

Table of Contents

Questions and Answers:

Arctic King WWK05CM91N Specifications

Summary

Safety Precautions

Understanding Safety Symbols

General Electrical Safety

Operational and Environmental Safety

Safe Operation Practices

Environmental Considerations

Specific Safety Warnings and Guidelines

General Use and Preservation

Refrigerant (R32) Safety

Electrical Information and Grounding

Power Cord Safety

Grounding Requirements

Accident Prevention and Device Operation

Preventing Accidents

Operation of Current Device

Understanding Normal Sounds

Sound of Rushing Air

High Pitched Chatter

Trickling Sound

Gurgle/Hiss

Vibration

Air Conditioner Operation Guide

Operating Conditions

General Operating Notes

WKK05CM Unit Control Features

Thermostat Operation

Cooling Mode Selection

Fan Mode Selection

Electronic Control Operation

Turning Unit On/Off

Temperature Setting

Fan Speed Adjustment

Advanced Operating Features

Sleep Feature

Check Filter Reminder

Energy Saver Feature

Operating Modes (Auto, Fan Only, Dry)

Timer and Error Code Information

Auto Start/Stop Timer

Display and Error Codes

Additional Operating Information

Fresh Air Vent Control

Air Directional Louvers

Installation Requirements and Tools

Before You Begin Installation

Window Compatibility and Measurements

Tools Needed for Installation

Window Preparation and Unit Assembly

Preparing the Window Area

Assembling the Top Rail

Installing Accordion Panels

Attaching Top Rail

Installing Side Panels

Securing the Unit in the Window

Unit Placement and Tilt

Extending Side Panels

Installing Support Bracket

Installation Details and Storm Windows

Securing Lower Sash and Foam Seal

Handling Storm Window Obstructions

Removing AC from Window

Care and Cleaning Procedures

Air Filter Cleaning

Cabinet Cleaning

Winter Storage

Troubleshooting Common Issues

Unit Not Starting

Insufficient Cooling

Rapid Cycling Issues

Troubleshooting Noise and Water Issues

Noise During Operation

Water Dripping Problems

Remote Sensing Issues

Room Too Cold

Remote Control Handling and Battery Replacement