Midea MEHS-09PSH1 - User Manual

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

Summary

1. Precaution

1.1 Safety Precaution

General safety instructions for preventing injury and property damage.

1.2 Warning

Critical warnings for installation, operation, and maintenance to avoid hazards.

4. Refrigerant Cycle Diagram

5. Wiring Diagrams

5.1 Indoor Unit Wiring

Wiring diagrams for various Midea indoor unit models, showing component connections.

5.2 Outdoor Unit Wiring

6. Installation Details

6.1 Wrench Torque for Installation

6.4 First-Time Installation

7. Operation Characteristics

8.3 Main Protection

8.4 Operation Modes and Functions

8.4.2 Cooling Mode

8.4.3 Heating Mode

9. Troubleshooting

9.1 Indoor Unit Error Display

9.3 Diagnosis and Solution

9.3.1 EEPROM Parameter Error

9.3.2 Communication Diagnosis (E1)

9.3.4 Fan Speed Control Error (E3;F5)

9.3.5 Temperature Sensor Error (E4;E5;F1;F2;F3)

9.3.6 Refrigerant Leakage Detection (EC)

9.3.6 Overload Current Protection (F0)

9.3.7 IPM Malfunction;Over-Current Protection (P0)

10. Disassembly Instructions

10.1 Indoor Unit Disassembly

10.2 Outdoor Unit Disassembly

Midea MEHS-09PSH1 Specifications