Midea MCHS-30PSH2

Mission 3D Inverter Series
Service Manual 2016
MBSUL-A-1604

Midea MCHS-30PSH2 Specifications

General

Brand	Midea
Model	MCHS-30PSH2
Category	Air Conditioner
Language	English

Summary

1. Precaution

1.1 Safety Precaution

Instructions to prevent injury to users and property damage.

1.2 Warning

Important warnings regarding installation and operation for safety.

4. Refrigerant Cycle Diagram

5. Wiring Diagram

5.1 Indoor Unit

Wiring diagrams for different Midea indoor unit series.

5.2 Outdoor Unit

Wiring diagrams for Midea outdoor units, showing PCB connections.

6 Installation Details

6.1 Wrench torque sheet for installation

6.4 Installation for the first time

6.7 Re-installation while the outdoor unit need to be repaired

7. Operation Characteristics

8. Electronic function

8.2 Display function

8.3 Main Protection

8.4.2 Cooling Mode

8.4.3 Heating Mode

8.4.9 Point check function

9. Troubleshooting

9.1 Indoor Unit Error Display

Lists error codes displayed on the indoor unit and their meanings.

9.2 Outdoor unit error display

Shows PCB layouts and connector labels for outdoor units.

9.3.1 EEPROM parameter error diagnosis and solution(E0 F4)

Troubleshooting steps for EEPROM parameter errors.

9.3.2 Indoor outdoor units communication diagnosis and solution(E1)

Steps to diagnose and resolve communication errors between units.

9.3.3 Zero crossing detection error diagnosis and solution (E2)

Troubleshooting for zero crossing detection errors.

9.3.4 Fan speed has been out of control diagnosis and solution(E3)

Steps to fix fan speed control issues.

9.3.5 Open circuit or short circuit of temperature sensor diagnosis and solution(E5)

Troubleshooting for temperature sensor faults.

9.3.6 Refrigerant Leakage Detection diagnosis and solution(EC)

Diagnosing and fixing refrigerant leakage issues.

9.3.6 Overload current protection diagnosis and solution(F0)

9.3.7 IPM malfunction or IGBT over-strong current protection diagnosis and solution(P0)

9.3.8 Over voltage or too low voltage protection diagnosis and solution(P1)

9.3.9 High temperature protection of IPM module or compressor top diagnosis and solution(P2)

9.3.10 Inverter compressor drive error diagnosis and solution(P4)

9.3.11 Low pressure protection diagnosis and solution(P6)

Main parts check

1. Temperature sensor checking

2.Compressor checking

3. IPM continuity check