Midea MWF1-09CMN1-NB9 - User Manual

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MIDEA 60Hz

WINDOW MECHANICAL

SIDE AIR DISCHARGE

F SERIES

Questions and Answers:

T
terricooperAug 10, 2025
What to do if Midea MWF1-09CMN1-NB9 Air Conditioner is cooling, but room is too warm?
- J
  Joseph RobbinsAug 10, 2025
  If your Midea Air Conditioner is cooling, but the room is too warm and there's no ice forming on the cooling coil, consider these possibilities: * The air filter might be dirty, restricting airflow. Clean the air filter. * The thermostat could be set too warm. Turn the thermostat clockwise to a colder setting. * Air directional louvers may be positioned improperly. Adjust them for better air distribution. * The front of the unit might be blocked by drapes, blinds, or furniture, restricting air distribution. Clear any blockage. * Doors, windows, or registers might be open, allowing cold air to escape. Close them. * If the unit was recently turned on in a hot room, allow additional time for it to remove stored heat from walls, ceiling, floor, and furniture.
A
Ann WilsonAug 14, 2025
How to fix Midea MWF1-09CMN1-NB9 Air Conditioner when air is not cold enough?
- K
  Kenneth RileyAug 14, 2025
  Here's what might be happening if the air from your Midea Air Conditioner doesn't feel cold enough: * You may need to turn the selector to a higher COOL position. * The thermostat could be set too warm. Set the thermostat to a colder temperature. * If the room temperature is below 18°C (64°F), cooling may not occur until the room temperature rises above this level. * The temperature sensing tube might be touching the cold coil behind the air filter. Straighten the tube away from the coil.
N
Nicholas RamirezAug 18, 2025
Why Midea Air Conditioner turns on and off rapidly?
- K
  Keith ChaneyAug 18, 2025
  If your Midea Air Conditioner turns on and off rapidly, it could be due to: * A dirty air filter restricting airflow. Clean the air filter. * Extremely hot outside temperatures. Set the unit to high cool to bring air past the cooling coils more frequently.
C
christopher06Aug 22, 2025
What to do if Midea MWF1-09CMN1-NB9 Air Conditioner makes noise when cooling?
- M
  Mark GarciaAug 22, 2025
  Some noise is normal, but here’s what to check if you're concerned about noise from your Midea Air Conditioner during cooling: * Air movement sound is normal; if it's too loud, turn the selector to a lower FAN setting. * The sound of the fan hitting water in the moisture removal system is normal when humidity is high. Close doors, windows, and registers. * Window vibration due to poor installation. Refer to the installation instructions or check with the installer.
M
Mark Lyons PhDAug 27, 2025
What to do if Midea Air Conditioner drips water inside?
- K
  Keith YorkAug 27, 2025
  If water is dripping inside from your Midea Air Conditioner when it's cooling, consider the following: * Improper installation. Tilt the air conditioner slightly to the outside to allow water drainage. Refer to the installation instructions or check with the installer. * The unit might be removing a large quantity of moisture from a humid room, which is normal during excessively humid days.
C
colleenwalshAug 31, 2025
Why Midea Air Conditioner is cooling, but room is too warm and ice is forming?
- S
  suarezjacquelineAug 31, 2025
  If your Midea Air Conditioner is cooling, but the room is too warm and ice is forming on the cooling coil, here's what could be happening: * The outdoor temperature might be below 18°C (64°F). To defrost the coil, set the selector to the FAN position and then set the thermostat to a warmer position. * The air filter may be dirty. Clean the filter. To defrost, set the selector to FAN. * The thermostat could be set too cold for night-time cooling. To defrost the coil, set the selector to a FAN position and then set the thermostat to a warmer position.

Midea MWF1-09CMN1-NB9 Specifications

General

Power Supply	220-240V, 50Hz
Refrigerant	R32
Energy Efficiency Ratio (EER)	3.21
Cooling Capacity	9000 BTU/h
Heating Capacity	9000 BTU/h

Summary

1. Precaution.

1.1 Safety Precaution

Instructions to prevent injury and property damage.

1.2 Warning

Critical warnings regarding installation, operation, and electrical safety.

2. Function and control panel.

2.1 Functions

Lists various operational modes and features of the air conditioner.

2.2 Control panel

Details the components and layout of the control panel.

4. Refrigerant Cycle Diagram.

5. Wiring Diagram.

6 Installation details.

6.1 Select the best location.

Guidelines for choosing an optimal and secure installation site.

6.2 Check off installation.

Key checks to perform after the air conditioner is installed.

6.3 How to drain.

Instructions for setting up the bottom drainage system.

6.4 How to install.

Covers installing the housing, unit into housing, and unit into wall.

7 Operation characteristics.

7.1 Cooling operation

Graph showing cooling performance based on indoor/outdoor temperatures.

7.2 Heating operation

Graph illustrating heating performance based on indoor/outdoor temperatures.

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