Midea MPK-09CRN2 - User Manual

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Website: www.mideaaircon.com

Service manual

CAUTION

- BEFORE SERVICING THE UNIT, READ THE SAFETY

- PRECAUTIONS IN THIS MANUAL.

- ONLY FOR AUTHORIZED SERVICE PERSONNEL.

MODELS:

MPK-09CEN2 MPK-09CRN2 MPK-09EEN2 MPK-09ERN2

MPK-10CEN2 MPK-10CRN2 MPK-10EEN2 MPK-10ERN2

MPK-12CEN2 MPK-12CRN2 MPK-12EEN2 MPK-12ERN2

MPK-08CE MPK-08CR MPK-08EE MPK-08ER

MPK-09CE MPK-09CR MPK-09EE MPK-09ER

MPK-10CE MPK-10CR MPK-10EE MPK-10ER

MPK2-09CEN1-QB6 MPK2-09CRN1-QB6 MPK2-09EEN1-QB6 MPK2-09ERN1-QB6

MPK2-10CEN1-QB6 MPK2-10CRN1-QB6 MPK2-10EEN1-QB6 MPK2-10ERN1-QB6

MPK2-12CEN1-QB4 MPK2-12CRN1-QB4 MPK2-12EEN1-QB4 MPK2-12ERN1-QB4

Table of Contents

Questions and Answers:

M
Michelle RileyAug 19, 2025
Why is my Midea MPK-09CRN2 Air Conditioner not cooling or heating?
- M
  manuellucasAug 19, 2025
  If your Midea Air Conditioner isn't cooling or heating, begin by checking the voltage. Verify the wiring terminals are secure, repairing them if loose. Ensure the temperature and mode settings are correctly adjusted. Inspect the compressor, overload protector, and wiring for any damage, replacing if necessary. If the unit uses an electric heater, check for damage and replace if needed. Also, examine the overheat fuse and replace if it's damaged. Finally, check the voltage of the main PCB; if the unit fails in heating mode, replace the main PCB.
O
oweberAug 22, 2025
How to fix no power display on panel of Midea Air Conditioner?
- J
  John LittleAug 22, 2025
  If there is no power display on the panel or button failure on your Midea Air Conditioner, check the power supply to ensure it's providing power to the unit. Inspect the power cord for damage and correct if necessary. Check the resistance between the input/output lines on the transformer (discharge transformer before testing), and replace the transformer if either input/output is open or the transformer is damaged. Check the voltage on the display board, replace the display board if it is +5V else replace the main PCB.
K
Katrina MitchellAug 26, 2025
What to do if Midea MPK-09CRN2 Air Conditioner shows water full alarm?
- A
  Ashley ConnerAug 26, 2025
  If you're getting a water full alarm on your Midea Air Conditioner, start by checking if the water tank is full and empty it if necessary. Inspect the water depth sensor and replace it if it has failed. Check the water pump and replace it if it's not working. If the water depth is overloaded in the chassis, drain the water by opening the drainage hose. Finally, inspect the water depth sensing structure and replace or realign it if it's faulty.
I
iwilliamsAug 28, 2025
How to fix Midea Air Conditioner fan motor noise?
- K
  Kaitlyn MeyerAug 28, 2025
  If your Midea Air Conditioner's fan motor is making noise, the fan blower might be cracked, out of balance, or partially missing; replace it if any of these issues are present. Check for any loose screws and tighten them. If knocking sounds continue when the motor is running, or if the motor hums or the noise appears internal, the bearings may be worn; replace the motor in this case.
I
ioneillAug 31, 2025
What to do if compressor will not run while fan motor runs in Midea MPK-09CRN2 Air Conditioner?
- C
  Christopher FosterAug 31, 2025
  If the fan motor runs but the compressor won't start on your Midea Air Conditioner, start by checking the voltage. Inspect the wire connections and repair or replace any loose terminals. If wires are off, refer to the wiring diagram for proper placement. Check the voltage of the main PCB and replace it if open. Examine the capacitor and replace it if it's not within +/-10% of the manufacturer's rating or if it's shorted, open, or damaged. Ensure the room temperature setting is at the coolest setting in cooling mode or the warmest in heating mode. Finally, check the compressor for open circuits or grounding, and replace the compressor if necessary.
K
Kenneth SanchezSep 6, 2025
Why does my Midea MPK-09CRN2 unit start and stop frequently?
- J
  jameshowardSep 6, 2025
  If your Midea Air Conditioner starts and stops frequently, the input power supply voltage may be too low. Check the voltage and call an electrician if it's not within limits. Inspect the main PCB and replace it if the compressor relay on the PCB is shorted or damaged. Also, when the room temperature is too high, the compressor will protect itself.
G
George Hall Jr.Sep 8, 2025
Why does Midea MPK-09CRN2 compressor stop instantly after startup?
- J
  Jennifer StevensSep 9, 2025
  If the compressor on your Midea Air Conditioner stops instantly after startup, it could be due to too much refrigerant, causing the compressor load to be too high. Recycle and recharge the refrigerant after checking for the reason. Alternatively, the compressor might be blocked internally; replace it after investigating the cause.
B
Brittany MartinezSep 12, 2025
Why does Midea MPK-09CRN2 fan motor run intermittently?
- X
  Xavier MoodySep 12, 2025
  If the fan motor on your Midea Air Conditioner runs intermittently, it may be cycling on overload. Check the voltage, and if it's not within limits, call an electrician. Test the capacitor and replace it if it's not within +/-10% of the manufacturer's rating. Check the bearings; if the blower wheel cannot rotate freely, replace the motor. If the speed does not change from high speed to low speed, replace the motor.

Midea MPK-09CRN2 Specifications

General

Refrigerant	R410A
Power Supply	220-240V/50Hz
Operating Temperature (Cooling)	17-35°C
Type	Portable
Cooling Capacity	9000 BTU/h
Energy Efficiency Ratio (EER)	2.6
Air Flow (High)	360 m3/h
Noise Level (Indoor)	24 dB
Net Weight (Outdoor Unit)	25 kg

Summary

Preface

Safety Precautions

General safety warnings and precautions to be followed before servicing the unit.

Insulation Resistance Test

Procedure for testing insulation resistance to prevent shock hazards.

Features

Lists key features and functions of the air conditioner unit.

Control Locations

Identifies the locations of controls on the unit and remote.

Trouble Shooting Guide

Refrigeration Cycle Diagram

Diagram illustrating the refrigeration cycle of the air conditioner.

Electric Function

Details electrical functions, working environment, and symbols used.

Troubleshooting

Table listing common problems, possible causes, and remedies.

Wiring Diagram

For Cooling Only Models

Wiring diagrams specific to cooling-only air conditioner models.

For Cooling and Heating Models

Wiring diagrams for air conditioner models with cooling and heating functions.

Electrical Control Scheme

Schematic illustrating the electrical control system of the unit.

How to Disassemble the Unit

Prepare the unit

Steps to prepare the unit for disassembly, including unplugging and draining.

Remove the screws which fixed the rear panel

Instructions for removing screws securing the rear panel of the unit.

To disassemble the display board assembly

Procedure for disassembling the display board assembly.

To disassemble the front panel

Instructions for removing the screws fixing the front panel.

To replace the Main Control board

Steps for replacing the main control board, including enclosure cover removal.

To replace the evaporator fan motor or electric heater

Procedure for replacing the evaporator fan motor or electric heater.

To replace the condenser fan motor

Instructions for replacing the condenser fan motor.

To repair the refrigerant system or replace the compressor

Steps for repairing the refrigerant system or replacing the compressor.

To repair the water disposal system or replace the water depth switch or the pump

Procedure for repairing the water disposal system or replacing components like the pump.

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