Midea MCHSU-24PHH2

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

Midea MCHSU-24PHH2 Specifications

General

Brand	Midea
Model	MCHSU-24PHH2
Category	Air Conditioner
Language	English

Summary

1. Precaution

1.1 Safety Precaution

Instructions to prevent injury to users and property damage.

1.2 Warning

Warnings regarding installation and operation to prevent fire, electric shock, and damage.

5. Wiring Diagram

6 Installation Details

6.4 Installation for the first time

7. Operation Characteristics

8. Electronic function

8.3 Main Protection

8.4 Operation Modes and Functions

8.4.3 Heating Mode

9. Troubleshooting

9.1 Indoor Unit Error Display

Lists error codes for the indoor unit and their corresponding meanings.

9.2 Outdoor unit error display

Shows PCB layout and component references for outdoor units.

9.3 Diagnosis and Solution

Troubleshooting guide for EEPROM parameter errors (E0/F4).

9.3.2 Indoor outdoor units communication diagnosis and solution(E1)

Troubleshooting for communication errors between indoor and outdoor units (E1).

9.3.3 Zero crossing detection error diagnosis and solution (E2)

Troubleshooting for zero crossing detection errors (E2).

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

Troubleshooting for fan speed control errors (E3/F5).

9.3.5 Open circuit or short circuit of temperature sensor diagnosis and solution(E4)

Troubleshooting for temperature sensor circuit errors (E4/E5/F1/F2/F3).

9.3.6 Refrigerant Leakage Detection diagnosis and solution(EC)

Troubleshooting for refrigerant leakage detection (EC).

9.3.6 Overload current protection diagnosis and solution(F0)

Troubleshooting for overload current protection (F0).

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

Troubleshooting for IPM/IGBT over-current protection (P0).

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

Troubleshooting for over/under voltage protection (P1).

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

Troubleshooting for high temp protection (P2).

9.3.10 Inverter compressor drive error diagnosis and solution(P4)

9.3.11 Low pressure protection diagnosis and solution(P6)

10 Disassembly Instructions

10.1 Indoor unit

10.2 Outdoor unit