Table of Contents
Gree air conditioners display a fault code on the indoor panel when they detect a problem. This is the complete Gree AC error code list for Pakistan, organised by series, with what each code means and whether it is something you can resolve yourself.
What the series mean
Gree uses more code series than most brands. E and F codes cover sensors, fans and the compressor; H and L codes relate to system and inverter conditions; P codes are protection trips; and U codes usually indicate communication or configuration faults.
Before you start
Switch the unit off and isolate it at the breaker before checking anything. Sensor, board and refrigerant faults need a qualified technician — opening a unit yourself can void the warranty and is dangerous with capacitors still charged.
Gree AC Error Code List #
E Series Error Codes #
| Error Code | Meaning | Possible Cause | Solution |
|---|---|---|---|
| E1 | High-pressure protection activated | Overheating, dirty condenser coils, faulty compressor | Clean condenser coils, check for obstructions, consult technician if needed. |
| E2 | Anti-freezing protection activated | Low refrigerant, faulty temperature sensor | Check refrigerant levels, replace temperature sensor if faulty. |
| E3 | Low refrigerant | Refrigerant leak | Contact a technician to find and fix the leak, then recharge the system. |
| E4 | Compressor exhaust temperature protection activated | Overheating, dirty condenser coils | Clean condenser coils, check for obstructions. |
| E5 | Overcurrent protection activated | Electrical issue, faulty wiring | Check wiring and components, consult a technician if needed. |
| E6 | Communication error between indoor and outdoor units | Loose wiring, faulty control board | Check wiring and control board, replace faulty components. |
| E8 | Indoor fan motor or indoor circuit board malfunction | Faulty motor or circuit board, loose connections | Check motor and circuit board, tighten connections, replace faulty parts. |
| E9 | Water flow switch issue | Blocked drain pipe, faulty water flow switch | Clear drain pipe, replace switch if faulty. |
| EE/ee | Error loading data into EEPROM memory | Faulty EEPROM chip | Replace EEPROM chip. |
| EU | IPM (Intelligent Power Module) overheating | Overloaded IPM, faulty IPM | Reduce load on IPM, replace if faulty. |
F Series Error Codes #
| Error Code | Meaning | Possible Cause | Solution |
|---|---|---|---|
| F0 | Low refrigerant level | Refrigerant leak | Contact a technician to find and fix the leak, then recharge the system. |
| F1 | Indoor ambient temperature sensor open or short circuit | Faulty sensor or wiring | Replace sensor or repair wiring. |
| F2 | Indoor evaporator temperature sensor malfunction | Faulty sensor or wiring | Replace sensor or repair wiring. |
| F3 | Outdoor ambient temperature sensor malfunction | Faulty sensor or wiring | Replace sensor or repair wiring. |
| F4 | Outdoor pipe temperature sensor malfunction | Faulty sensor or wiring | Replace sensor or repair wiring. |
| F5 | Exhaust temperature sensor malfunction | Faulty sensor or wiring | Replace sensor or repair wiring. |
| F6 | Overload limit or frequency drop issue | Overloaded system, faulty components | Reduce load on system, check components, consult a technician. |
| F8 | Overcurrent limit or frequency drop issue | Electrical issue, faulty components | Check electrical connections and components, consult a technician. |
| F9 | High exhaust temperature limit causing frequency drop | Overheating, dirty condenser coils | Clean condenser coils, check for obstructions. |
| FA | Over-temperature of the tube causing frequency drop | Overheating, faulty components | Check components, consult a technician. |
| FC | Door malfunction | Obstruction, faulty door switch | Remove obstruction, replace switch if faulty. |
| FE | Compressor overload sensor malfunction | Faulty sensor or compressor | Replace sensor or compressor. |
| FH | Anti-freezing limit reached, causing frequency drop | Low ambient temperature, faulty sensor | Check ambient temperature, replace sensor if faulty. |
H Series Error Codes #
| Error Code | Meaning | Possible Cause | Solution |
|---|---|---|---|
| H0 | Anti-high temperature limit reached in heating mode | Overheating, faulty sensor | Check for obstructions, replace sensor if faulty. |
| H1 | Defrosting in progress | Normal operation | No action needed. |
| H2 | Clearing static and dust buildup | Normal operation | No action needed. |
| H3 | Compressor overload protection | Overheating, faulty compressor | Check for obstructions, replace compressor if faulty. |
| H4 | Outdoor unit condensing pressure too high | Blocked or inefficient heat exchanger | Clean or replace heat exchanger. |
| H5 | Input voltage incorrect, cables, compressor coil resistance, or insulation issues | Faulty components, incorrect wiring | Check wiring and components, correct voltage if needed. |
| H6 | Indoor fan blocked or no feedback from motor | Obstruction, faulty motor | Remove obstruction, replace motor if faulty. |
| H7 | Compressor operational steps/stages lost | Faulty compressor or control board | Replace compressor or control board. |
| HC | PFC (Power Factor Correction) protection activated | Faulty PFC module or sensor | Replace module or sensor. |
| HE | Compressor demagnetization protection activated | Faulty compressor | Replace compressor. |
L Series Error Codes #
| Error Code | Meaning | Possible Cause | Solution |
|---|---|---|---|
| L3 | Outdoor fan motor malfunction | Faulty motor | Replace motor. |
| LC | Device not starting up | Power supply issue, faulty board | Check power supply and board, replace parts. |
| LD | Compressor shutting down due to missing power phase | Electrical issue, faulty compressor | Check wiring and compressor, consult technician. |
| LE | Compressor shutting down due to stuck rotor | Faulty compressor | Replace compressor. |
P Series Error Codes #
| Error Code | Meaning | Possible Cause | Solution |
|---|---|---|---|
| P0 | Drive module reset issue | Faulty drive module | Replace drive module. |
| P5 | Compressor shutting down due to overcurrent in one phase | Faulty compressor | Replace compressor. |
| P6 | Communication error between main and driver boards | Faulty boards or wiring | Check wiring and boards, replace parts. |
| P7 | IPM (Intelligent Power Module) sensor circuit malfunction | Faulty sensor or IPM | Replace sensor or IPM. |
| P8 | IPM overheating | Overloaded IPM, faulty IPM | Reduce load on IPM, replace if faulty. |
| PA | Protection against excessive AC current from input | Electrical issue, faulty parts | Check wiring and components. |
| PC | Current detection circuit or current sensor malfunction | Faulty sensor or circuit | Replace sensor or circuit. |
| PH | Protection against high PN voltage | Electrical issue, faulty parts | Check wiring and components. |
| PL | Protection against low PN voltage | Electrical issue, faulty parts | Check wiring and components. |
| PU | Capacitor charging issue | Faulty capacitor | Replace capacitor. |
U Series Error Codes #
| Error Code | Meaning | Possible Cause | Solution |
|---|---|---|---|
| U1 | Compressor phase current detection circuit malfunction | Faulty circuit or compressor | Replace circuit or compressor. |
| U2 | Compressor phase loss protection | Electrical issue, faulty compressor | Check wiring and compressor, consult technician. |
| U3 | Protection against PN voltage drop | Electrical issue, faulty parts | Check wiring and components. |
| U4 | Reverse running protection for compressor | Faulty compressor or wiring | Check wiring and compressor. |
| U5 | AC current detection circuit malfunction | Faulty circuit | Replace circuit. |
| U7 | Abnormal 4-way valve reversal | Faulty valve or wiring | Check wiring, replace valve if faulty. |
| U8 | Exhaust temperature sensor disconnected | Loose connection, faulty sensor | Check connection, replace sensor if faulty. |
| U9 | Error detecting zero voltage in AC power supply | Power supply issue | Check power supply. |
Other Error Codes #
| Error Code | Meaning | Possible Cause | Solution |
|---|---|---|---|
| oE | High temperature in PFC module or PFC module sensor malfunction | Faulty module or sensor | Replace module or sensor. |
| b5 | Inlet tube sensor malfunction | Faulty sensor or wiring | Replace sensor or repair wiring. |
| b7 | Outlet tube sensor malfunction | Faulty sensor or wiring | Replace sensor or repair wiring. |
| C5 | Jumper cap malfunction | Faulty jumper cap | Replace jumper cap. |
| C5 | Connector jumper malfunction | Faulty connector jumper | Replace connector jumper. |
Before you assume a fault: check the remote #
A surprising number of “faults” are settings. If there is no code on the display but the unit is not cooling, check that the remote is in cooling mode rather than fan or dry, that the temperature is set low enough, and that the keypad is not locked. Our Gree AC remote control guide covers every button and symbol.
How to reset a Gree AC #
A reset clears temporary faults — communication glitches, a one-off protection trip, or a code left on screen after the cause has gone. It will not fix a genuine hardware fault, but it is always the first thing to try and costs nothing.
- Switch the unit off with the remote and wait a few seconds.
- Turn the AC off at the circuit breaker or unplug it.
- Leave it isolated for 5 to 10 minutes so the control board fully discharges.
- Restore power and switch the unit on with the remote.
- If the same code returns immediately, it is a real fault — note the code and call a technician.
Which codes you can clear yourself, and which need a technician #
| Type of fault | Can you fix it? | What to do |
|---|---|---|
| Communication error between indoor and outdoor unit | Sometimes | Reset first. If it returns, the interconnecting cable or a board is at fault — technician. |
| Voltage or over-current protection | Often | Check your stabiliser and supply voltage. Repeated trips mean an electrical problem, not an AC problem. |
| Dirty filter or blocked outdoor unit | Yes | Clean the filters and clear debris and vegetation from around the outdoor unit. |
| Sensor fault (room, coil or outdoor sensor) | No | The sensor needs testing and replacing. Technician. |
| Refrigerant or gas-related fault | No | Usually a leak. Needs pressure testing and recharging by a technician. |
| Compressor, inverter module or PCB fault | No | Board-level repair. Do not attempt this yourself. |
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