Gree air conditioner indicator lamps and blink codes
Many units show a fault only by blinking lamps. Find the pattern you see, then open the code.
| Code | How it shows | Meaning |
|---|---|---|
| C5 | Indoor Operation indicator: OFF 3S and blink 15 times Indoor Flashing Times Run LED: 15 | PCB Jumper Wire Cap Malfunction |
| E1 | Indoor Operation indicator: OFF 3s and blink once Indoor Flashing Times Run LED: 1 section: LED table | High Pressure Protection |
| E2 | Indoor Operation indicator: OFF 3S and blink twice Outdoor Yellow indicator: OFF 1S and blink 3 times Indoor Flashing Times Run LED: 2 section: LED table | Anti-Freeze Protection |
| E3 | section: LED table | Low-pressure protection |
| E4 | Indoor Operation indicator: OFF 3S and blink 4 times Outdoor Yellow indicator: OFF 1S and blink 7 times Indoor Flashing Times Run LED: 4 section: LED table | Compressor Discharge Temp. Protection |
| E5 | Indoor Operation indicator: OFF 3S and blink 5 times Outdoor Yellow indicator: OFF 1S and blink 5 times Indoor Flashing Times Run LED: 5 section: LED table | AC Overload Protection |
| E6 | Indoor Operation indicator: OFF 3S and blink 6 times Outdoor Yellow indicator: Always ON Indoor Flashing Times Run LED: 6 section: LED table | Indoor/Outdoor Communication |
| E8 | Indoor Operation indicator: OFF 3S and blink 8 times Outdoor Yellow indicator: OFF 1S and blink 6 times Indoor Flashing Times Run LED: 8 | Anti High Temp. Protection |
| EE | Indoor Heating indicator: OFF 3S and blink 15 times Outdoor Yellow indicator: OFF 1S and blink 11 times Indoor Flashing Times Heat LED: 15 | Loading EEPROM malfunction |
| EU | Indoor Cool indicator: OFF 3S and blink 6 times Indoor Heating indicator: OFF 3S and blink 6 times | IPM temp. High Protection |
| F0 | Outdoor Red indicator: OFF 1S and blink 9 times section: LED table | Indoor ambient temperature sensor error |
| F1 | Indoor cool indicator: OFF 3S and blink once Indoor Flashing Times Cool LED: 1 section: LED table | Indoor Ambient Sensor Open/Short Circuit |
| F2 | Indoor cool indicator: OFF 3S and blink twice Indoor Flashing Times Cool LED: 2 section: LED table | Indoor Coil Sensor Open/Short Circuit |
| F3 | Indoor cool indicator: OFF 3S and blink 3 times Outdoor red indicator: OFF 1S and blink 6 times Indoor Flashing Times Cool LED: 3 section: LED table | Outdoor Ambient Sensor Open/Short Circuit |
| F4 | Indoor cool indicator: OFF 3S and blink 4 times Outdoor red indicator: OFF 1S and blink 5 times Indoor Flashing Times Cool LED: 4 section: LED table | Outdoor Coil Sensor Open/Short Circuit |
| F5 | Indoor cool indicator: OFF 3S and blink 5 times Outdoor red indicator: OFF 1S and blink 7 times Indoor Flashing Times Cool LED: 5 section: LED table | Compressor Discharge Sensor Open/Short |
| F6 | Indoor cool indicator: OFF 3S and blink for 6 times Outdoor red indicator: OFF 1S and blink 3 times Indoor Flashing Times Cool LED: 6 section: LED table | Overload Limit Descending Frequency |
| F8 | Indoor cool indicator: OFF 3S and blink 8 times Outdoor red indicator: OFF 1S and blink once Indoor Flashing Times Cool LED: 8 section: LED table | Overload Current Descending Frequency |
| F9 | Indoor Cool indicator: OFF 3S and blink 9 times Outdoor Red indicator: OFF 1S and blink twice Indoor Flashing Times Cool LED: 9 section: LED table | Exhaust Air High Descending Frequency |
| FH | Indoor Cool indicator: OFF 3S and blink 2 times Indoor Heating indicator: OFF 3S and blink 2 times Outdoor Red indicator: OFF 1S and blink 4 times | Anti Freeze Limit Descending Frequency |
| FO | Indoor operation indicator: OFF 3S and blink 1 times Indoor cool indicator: OFF 3S and blink 1 times Outdoor yellow indicator: OFF 1S and blink 17 times | Gathering refrigerant |
| H0 | Indoor Heating indicator: OFF 3S and blink 10 times | Heating anti-high temperature drop frequency |
| H1 | Indoor Flashing Times Heat LED: 1 | Defrosting |
| H2 | Indoor Heating indicator: OFF 3S and blink twice Indoor Flashing Times Heat LED: 2 | Electrostatic Dust Protection |
| H3 | Indoor Heating indicator: OFF 3S and blink 3 times Outdoor Yellow indicator: OFF 1S and blink 8 times Indoor Flashing Times Heat LED: 3 | Compressor Overload Protection |
| H4 | Indoor Heating indicator: OFF 3S and blink 4 times Outdoor Yellow indicator: OFF 1S and blink 6 times Indoor Flashing Times Heat LED: 4 | System Operation Abnormal |
| H5 | Indoor Heating indicator: OFF 3S and blink 5 times Outdoor Yellow indicator: OFF 1S and blink 4 times / OFF 1S and blink 10 times Indoor Flashing Times Heat LED: 5 | IPM module protection |
| H6 | Indoor Operation indicator: OFF 3S and blink 11 times Indoor Flashing Times Run LED: 11 | Indoor Fan Motor Malfunction |
| H7 | Indoor Heating indicator: OFF 3S and blink 7 times Indoor Flashing Times Heat LED: 7 | Compressor |
| HC | Indoor Heating indicator: OFF 3S and blink 6 times Outdoor Yellow indicator: OFF 1S and blink 14 times | PFC abnormality |
| HO | Indoor Flashing Times Heat LED: 10 | Heating Anti Temp. Declines |
| L3 | Indoor Operation indicator: OFF 3S and blink 23 times Outdoor Red indicator: OFF 1S and blink 14 times | Fan Module Protection |
| L9 | Indoor Operation indicator: OFF 3S and blink 20 times Outdoor Yellow indicator: OFF 1S and blink 9 times | power protection |
| LC | Indoor Heating indicator: OFF 3S and blink 11 times Indoor Flashing Times Heat LED: 11 | Startup Failure |
| LP | Indoor Operation indicator: OFF 3S and blink 19 times Outdoor Yellow indicator: OFF 1S and blink 16 times | Mismatch of indoor unit model |
| P0 | Indoor Cool indicator: (during blinking, ON 0.25s and OFF 0.25s) Indoor Heating indicator: (during blinking, ON 0.25s and OFF 0.25s) | Drive resetting |
| P1 | Indoor Cool indicator: (during blinking, ON 0.25s and OFF 0.25s) Indoor Heating indicator: (during blinking, ON 0.25s and OFF 0.25s) | Compressor rated frequence in test state |
| P2 | Indoor Cool indicator: (during blinking, ON 0.25s and OFF 0.25s) Indoor Heating indicator: (during blinking, ON 0.25s and OFF 0.25s) | Compressor maximum frequence in test state |
| P3 | Indoor Cool indicator: (during blinking, ON 0.25s and OFF 0.25s) Indoor Heating indicator: (during blinking, ON 0.25s and OFF 0.25s) | Compressor intermediate frequence in test state |
| P5 | Indoor Cool indicator: OFF 3S and blink 15 times Indoor Flashing Times Cool LED: 15 | Compressor Over Current Protection |
| P7 | Indoor Heating indicator: OFF 3S and blink 18 times Indoor Flashing Times Heat LED: 18 | Module Sensor Circuit |
| P8 | Indoor Heating indicator: OFF 3S and blink 19 times Indoor Flashing Times Heat LED: 19 | IPM Module High Temp Protection |
| PH | Indoor Cool indicator: OFF 3S and blink 11 times Outdoor Yellow indicator: OFF 1S and blink 13 times Indoor Flashing Times Cool LED: 11 | DC Voltage High |
| PL | Indoor Heating indicator: OFF 3S and blink 21 times Outdoor Yellow indicator: OFF 1S and blink 12 times Indoor Flashing Times Heat LED: 21 | Low DC Bus Voltage Protection |
| PU | Indoor Heating indicator: OFF 3S and blink 17 times Indoor Flashing Times Heat LED: 17 | Capacitor Charge Malfunction |
| U1 | Indoor heating indicator: OFF 3S and blink 13 times Indoor Flashing Times Heat LED: 13 | Compressor Current Circuit Malfunction |
| U3 | Indoor heating indicator: OFF 3S and blink 20 times Indoor Flashing Times Heat LED: 20 | DC Bus Voltage Fluctuating |
| U5 | Indoor cool indicator: OFF 3S and blink 13 times | AC current detect circuit malfunction |
| U7 | Indoor cool indicator: OFF 3S and blink 20 times | Reversing Valve Malfunction |
| U9 | Indoor operation indicator: OFF 3S and blink 18 times | Outdoor Unit Zero Cross Over Error |
| LED:HEAT=OFF 3S, BLINK ONCE | Heating indicator: OFF 3S and blink once (during blinking, ON 10s and OFF 0.5s) | Defrosting |
| LED:OUT_YEL=OFF 1S AND BLINK ONCE | Outdoor yellow indicator: OFF 1S and blink once | Compressor running |
| LED:OUT_RED=OFF 1S AND BLINK 8 TIMES | Outdoor red indicator: OFF 1S and blink 8 times | The temperature for turning on the unit is reached |
| LED:OUT_RED=OFF 1S AND BLINK 11 TIMES | Outdoor red indicator: OFF 1S and blink 11 times | Frequency limiting (module temperature) |
| LED:OUT_RED=OFF 1S AND BLINK 13 TIMES | Outdoor red indicator: OFF 1S and blink 13 times | Frequency limiting (power) |
Guides
- Air conditioner repair, stage by stage: from the call to the hand-over
The eight stages of an air conditioner repair: symptoms, safety, reading the code, narrowing down, measuring, repairing, test run, hand-over.