Gree inverter AC error codes: full list and meanings
When a Gree AC finds a fault, the indoor unit's display shows a two-character code, such as H3 or E6. The table below explains each code, so you can tell whether it is a small issue or a job for a mistri.
Updated 11-Nov-2026
These codes mean the same on most Gree inverter split AC models (such as the Pular and Fairy series). Some models differ slightly, so check your AC's manual or model number too.
For any code, try this first
- Turn the AC off with the remote, then switch off the main switch or breaker for 5 minutes. Turn it back on and see if the code returns.
- Take out the indoor unit's filters, wash them with water, let them dry and put them back.
- Check that nothing blocks air around the outdoor unit, such as clothes, a wall or rubbish.
- If the mains voltage is very low or very high, look at the stabilizer's light. Don't run the AC until the voltage is normal.
Safety: never reach into an electrical panel, board, gas pipe or the inside of an inverter yourself. You can get a shock or release gas. This is a mistri's job.
Fault codes
These show on the indoor unit's display, and the AC or its compressor stops.
| Code | Meaning |
|---|---|
| E1 | Refrigerant pressure went too high (high pressure protection). Details |
| E2 | Indoor coil is close to freezing (anti-freeze protection). |
| E3 | Low refrigerant pressure: low gas, a leak or a blockage. |
| E4 | Compressor discharge temperature too high. Details |
| E5 | Overcurrent protection. On some older models, low voltage. Details |
| E6 | Indoor and outdoor units have lost communication. Details |
| E8 | High temperature or overload protection. |
| EE | Memory chip (EEPROM) fault on the board. |
| F0 | Low refrigerant or leak protection. Details |
| F1 | Indoor room temperature sensor open or shorted. |
| F2 | Indoor coil (evaporator) temperature sensor open or shorted. Details |
| F3 | Outdoor ambient temperature sensor open or shorted. |
| F4 | Outdoor coil (condenser) temperature sensor open or shorted. |
| F5 | Compressor discharge temperature sensor open or shorted. |
| H3 | Compressor overload protection: the compressor overheated and stopped. Details |
| H4 | System abnormal (usually from heat or overload). |
| H5 | IPM protection: the module driving the compressor detected overcurrent. Details |
| H6 | Indoor fan motor is not running or not reporting back. |
| H7 | Compressor out of step with the drive (desynchronizing). |
| HC | PFC protection: fault in the part that conditions power for the compressor. Details |
| L3 | Outdoor DC fan motor fault or blocked fan. |
| LC | Compressor failed to start. |
| LP | Indoor and outdoor units don't match each other. |
| PH | DC bus voltage too high (often high mains voltage). |
| PL | DC bus voltage too low (often low mains voltage). |
| C5 | Jumper cap on the board is missing or loose. |
Not a fault, just a status
This code appears during normal work. It does not need a mistri.
| Code | Meaning |
|---|---|
| H1 | Defrosting during heating. Not a fault; it ends by itself. |
Common questions
How do I reset a Gree AC error code?
Turn the AC off with the remote, switch off the main switch or breaker for 5 minutes, then turn it back on. If the cause has gone, the code clears. If it comes back, the fault is still there and a mistri should look at it.
Does an error code always mean the gas has run out?
No. Only a few codes relate to gas, such as F0, E3 and often E4. Most others are about sensors, wires, fans, boards or voltage. Before refilling gas, ask the mistri to measure the pressure first.
Code still there?
Get a checked mistri in your city
Fill in the form and a mistri near you will call. Mention the code so they bring the right part.
Call a mistriAre you a mistri? Make your free page, and customers in your area call you directly
Registering is free. No commission on what you earn.
Make your free page