Name: Gree GUD50T/A-T
Brand: Gree
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GREE U-Match 5 SERIES UNIT SERVICE MANUAL

130

GUD85W/NhA-T(Product Code：CF090W1230)

Default Chapter3
- Table of Contents3
Safety Notice on Maintenance6
Safety Notice on Operation7
Product Introduction8
Lists of Units8
- List of Odus8
- List of Idus9
Electrical Parameters13
Control14
Operation Mode14
- Cooling Mode14
- Heating Mode15
Control Mode15
- Based Control15
- Special Control16
- Protection Control17
Functions17
- Setting of Filter Cleaning Reminder17
- Low-Temperature Drying Function18
- Child-Lock Function18
- Memory Function18
- Door Control Function18
- Switch between Fahrenheit and Degree Celsius19
- Inquiry of Ambient Temperature19
- Inquiry of Historical Malfunction19
- Debugging Function19
- Connect to Interface of Centralized Control22
Troubleshooting24
Wiring Diagrams24
- Wiring Diagrams of Odus24
- Wiring Diagrams of Idus28
PCB Layout31
- Interface31
- IPM,PFC Testing Method42
Error Code44
Troubleshooting46
- E1‖ Compressor High Pressure Protection46
- E2‖ Indoor Anti-Freezing Protection47
- E3‖ Compressor Low-Pressure Protection, Refrigerant Shortage Protection, Refrigerant Recovery Mode48
- E4‖ Compressor Air Discharge High-Temperature Protection49
- E6‖ Communication Error50
- E8‖ Indoor Fan Error51
- E9‖ Water Overflow Protection52
- F0‖ Indoor Ambient Temperature Sensor Error53
- F1‖ Evaporator Temperature Sensor Error54
- F2‖ Condenser Temperature Sensor Error55
- F3‖ Outdoor Ambient Temperature Sensor Error56
- F4‖ Discharge Temperature Sensor Error57
- F5‖ Wired Control Temperature Sensor Error58
- C5‖ IDU Jumper Cap Error59
- EE‖ IDU or ODU Memory Chip Error59
- PF‖ Electric Box Sensor Error60
- H3‖ Compressor Overload Protection61
- H4‖ Overload61
- H5‖ IPM Protection62
- H6‖ DC Fan Error63
- H7‖ Driver Out-Of-Step Protection64
- HC‖ PFC Protection65
- Lp‖ IDU and ODU Unmatched67
- U7‖ 4-Way Valve Switch-Over Error68
- P0‖ Driver Reset Protection68
- P5‖ Over-Current Protection69
- P6‖ Master Control and Driver Communication Error70
- P7‖ Driver Module Sensor Error71
- P8‖ Driver Module High Temperature Protection72
- PA‖ AC Current Protection72
- Pc‖ Driver Current Error73
- Pd‖ Sensor Connection Protection74
- PL‖ Bus Low-Voltage Protection74
- PH‖ Bus High-Voltage Protection75
- Ee‖ Drive Memory Chip Error76
- C4‖ ODU Jumper Cap Error77
- EL‖ Emergency Stop (Fire Alarm)78
Failures Not Caused by Errors78
Maintenance80
System Diagram80
Connection Pipe Vacuum Pumping80
Refrigerant Charging81
Maintenance of Major Components83
Removal of Major Components83
- Removal of ODU Major Components83
- Removal of IDU Major Components119
Explosive View and Lists of Parts130
- ODU Explosive View and Lists of Parts130
- IDU Explosive View and Lists of Parts151
Appendices185
Resistance/Temperature Lists of Temperature Sensors185
- Voltage List of 15 Kω Temperature Sensors (Including ODU and IDU Temperature Sensors)185
- Voltage List of 20 Kω Pipeline Temperature Sensors (Including Temperature Sensors for Defroster, IDU and ODU Pipes)187
- Voltage List of 50 Kω Discharge Temperature Sensors (Including Discharge Air Temperature Sensor)190
Temperature/Pressure List of Refrigerant192
Refrigerant Notice/Concentration193
Operation Tools194

Brand	Gree
Model	GUD50T/A-T
Category	Air Conditioner
Language	English

Gree GUD50T/A-T Service Manual

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