Gree AC All Error Codes Troubleshooting Guide | U-Match Series

Gree Air Conditioners have gained popularity worldwide, and now they have introduced solar system air conditioners. Currently, the most used technology in Gree ACs is the inverter system.

In this guide, we will discuss the error codes of Gree Inverter Air Conditioners U Match Series. This article will provide you with genuine guidance to troubleshoot and fix Gree AC error codes.

List of Gree AC Error Codes E-Series 

E1 – High-Pressure Protection Problem

If your AC displays an E1 error, it means there is a high-pressure refrigerant issue. Check:

• Refrigerant level
• Condenser for blockage
• Outdoor unit airflow

E2 – AC Freezing Problem (Icing Over)

When your air conditioner shows an E2 Error, it means the AC freezes up and forms ice, it can cause noise issues when the ice breaks. Possible causes include:

• Low refrigerant level
• Faulty fan motor
• Blockage in the cooling coil, filters, blower, or condenser

E3 – Low Refrigerant Level or Leakage

The E3 error appears when your AC has a refrigerant leak or is running in recycling mode. Check for:

• Refrigerant leaks
• Proper recycling function

E4 – Compressor Discharge High-Temperature Protection

E4 Error appears when the outdoor unit reaches a high discharge temperature, and the PCB board detects it. If this happens six times consecutively, the AC will turn off automatically. You need to reset the system.

E5 – Overcurrent or Voltage Fluctuation Problem

An unstable voltage supply triggers the E5 error. When this happens:

• The outdoor unit turns off automatically in cooling/drying mode.
• In heating mode, all systems shut down.

E6 – Communication Error Between Indoor and Outdoor Units

The E6 error occurs when there is a communication failure between the indoor and outdoor units. Check:

• Communication wires for loose, broken, or burnt connections.

E8 – Indoor Motor or Main Board Fault

If the indoor unit fan motor fails, the E8 error appears. Possible causes:

• Loose fan motor connector
• Faulty fan motor
• Malfunctioning indoor PCB board

E9 – Indoor Unit Water Pump & Water Level Problem

An overflowing drain tray is the main cause of the E9 error. Also, check:

• Water pump connections
• Faulty water pump motor

List of Gree AC Error Codes F-Series

F0 – Indoor Ambient Temperature Sensor Fault

If this sensor is faulty, the AC will display an F0 error. Check the sensor for 20kΩ resistance and replace it if it’s weak, open, or shorted.

F1 – Indoor Evaporator Tube Sensor Problem

The F1 error is caused by a malfunctioning tube sensor. Steps to troubleshoot:

• Check sensor resistance (25kΩ)
• Inspect for open, shorted, or weak conditions
• Ensure the PCB connector is secure

F2 – Condenser Temperature Sensor Issue

If the condenser temperature sensor is faulty, the F2 error appears. Verify:

• Loose or broken sensor connections
• Sensor resistance (50kΩ)

F3 – Outdoor Ambient Temperature Sensor Failure

A faulty outdoor ambient temperature sensor triggers the F3 error. Check:

• Sensor resistance (20kΩ)
• Signs of open, short, or burnt conditions

F4 – Compressor Discharge Tube Sensor Problem

If this sensor malfunctions, the F4 error appears. Inspect:

• Sensor resistance (25kΩ)
• Open, short, or burned conditions

F5 – Wired Remote Control Problem

If the wired controller temperature sensor is faulty, the F5 error occurs. Check for:

• Open, short, or loose connections
• Replace the wired controller if necessary

Additional Gree Inverter AC Error Codes

• EE – Outdoor Main PCB Memory Chip Issue
• ee – Outdoor Drive Board Memory Chip Issue
• H3 – Compressor Overload Protection
• H4 – Evaporator & Condenser Overload Protection
• H6 – Outdoor Fan Motor Issue
• H7 – Compressor Start/Stop Continuously
• P0 – Drive Module Reset Problem
• P5 – Compressor Current Protection
• P6 – Communication Error Between Main Board & Drive Board
• P7 – OFC IC Temperature Sensor Issue
• P8 – PFC IC Over-Temperature Issue
• U7 – 4-Way Valve Problem
• PA – AC Current Protection from Input Area
• PH – DC Busbar Over Voltage Issue
• PL – DC Busbar Under Voltage Issue
• PU – Charging Circuit Issue
• PP – Irregular AC Voltage Problem
• Lc – Compressor Startup Failure
• Ld – Missing Phase Issue
• Pc – Current Sense Circuit Problem
• HC – PFC Protection Issue

Final Thoughts

These are the common Gree Inverter AC error codes and their troubleshooting steps. By following this guide, you can quickly resolve most AC issues.

If you have any doubts or questions, feel free to leave a comment below. Hope this guide helps you!