Posted by During the summer, most of us start using AC but lack of knowledge may cause serious issues in our AC sometimes completely shut the AC down but due to some technical knowledge, you might be able to repair your AC or service your AC easily.
Let’s Understand all the AC Error Code List
Once you get to know the types of AC errors, then you easily can convey your message to your AC technician, or sometimes you may do it yourself. Let’s understand the AC error codes list and their description in a simple way
| S.No. | AC Error Code | Code Description |
|---|---|---|
| 1 | E1 | High-Pressure Protection of System |
| 2 | E2 | Antifreezing Protection |
| 3 | E3 | Low-Pressure Protection of System |
| 4 | E4 | High Discharge Temperature Protection of Compressor |
| 5 | E5 | Overcurrent Protection |
| 6 | E6 | Communication Malfunction |
| 7 | E8 | High-Temperature Resistant Protection |
| 8 | EE | EEPROM Malfunction |
| 9 | EU | Limit Frequency due to High Temperature of Module |
| 10 | C5 | Malfunction Protection of Jumper Cap |
| 11 | F0 | Gathering Refrigerant |
| 12 | F1 | Indoor Temperature Sensor is Short Circuited |
| 13 | F2 | IndoorEvaporator Temperature Sensor is short Circuited |
| 14 | F3 | Outdoor Ambient Temperature Sensor is Short Circuited |
| 15 | F4 | Outdoor Condensor Temperature is Short Circuited |
| 16 | F5 | Outdoor Discharge Temperature Sensor is Short Circuited |
| 17 | F6 | Limit Frequency due to Over Load |
| 18 | F8 | Limit Frequency due to Overcurrent |
| 19 | F9 | Limit / Decrease Frequency due to High Air Discharge |
| 20 | FH | Limit Frequency due to Antifreezing |
| 21 | PH | DC Bus Bar Voltage is High |
| 22 | PL | DC Bus Bar Voltage is Low |
| 23 | P5 | Overcurrent Protection of Phase Current for Compressor |
| 24 | PU | Capacitor Charging Malfunction |
| 25 | P7 | Module Temperature Sensor Circuit Malfunction |
| 26 | H3 | Overload Protection for Compressor |
| 27 | H5 | IPM protection |
| 28 | P8 | Module Temperature is too High |
| 29 | H6 | Fan Motor Not Operating |
| 30 | H7 | Compressor Desynchronizing |
| 31 | HC | PFC Protection |
| 32 | L3 | Outdoor DC Fan Motor Not Working |
| 33 | L9 | Power Protection |
| 34 | LP | Indoor and Outdoor Unit does not Match |
| 35 | LC | Failure startup |
| 36 | U1 | Malfunction of Phase Current detection for Compressor |
| 37 | U3 | Malfunction of Voltage Dropping for DC Bus bar |
| 38 | U5 | Gas Leakage |
| 39 | U7 | Four-way valve is not normal |
| 40 | U8 | Zero cross Detection Circuit malfunction |
Samsung AC Error Code and Solution
| S.No. | AC Error Code | Code Description | Solution |
|---|---|---|---|
| 1 | C-d0 | problem with the Button | Clean the buttons and check is any button pressed |
| 2 | CF | Reminder for filter cleaning | Clean and clear the inner filters of the AC |
| 3 | CI / DE | Auto clean indicator | Start the auto-clean function on your AC |
| 4 | DF | automatic Defrost function | Use the function |
| 5 | E1 or 21 | Room temperature sensor | Contact the Samsung service centre |
| 6 | E1 or 22 | Heat exchanger temperature sensor | Contact the Samsung service centre |
| 7 | E1 or 54 | Problem with the fan motor or capacitor | Contact the Samsung service centre |
| 8 | E1 or 63 | Problem with the EEPROM | Contact the Samsung service centre |
| 9 | E5 | Problem with the indoor heat exchanger sensor | Contact the Samsung service centre |
| 10 | E6 | Problem with outdoor heat exchanger sensors | Contact the Samsung service centre |
| 11 | E7 | Problem with the heater temperature sensor | Contact the Samsung service centre |
Voltas AC Error Code and Solution
| S.No. | AC Error Code | Code Description | Solution |
|---|---|---|---|
| 1 | EE | Indoor machine EE fault | Contact the Voltas service centre |
| 2 | E0 | Outdoor EE fault | Contact the Voltas service centre |
| 3 | E1 | Indoor fan fault | Contact the Voltas service centre |
| 4 | E2 | Indoor fan zero-crossing detection abnormal | Contact the Voltas service centre |
| 5 | E3 | Indoor coil fault and sensor fault | Contact the Voltas service centre |
| 6 | E4 | Indoor ambient temperature sensor fault | Contact the Voltas service centre |
| 7 | E5 | Fan Operation Error | Contact the Voltas service centre |
| 8 | E6 | Indoor and outdoor machine communication fault | Contact the Voltas service centre |
| 9 | E8 | Outdoor communication fault | Contact the Voltas service centre |
| 10 | F1 | Compressor starting abnormal | Contact the Voltas service centre |
| 11 | F2 | Compressor out of step fault | Contact the Voltas service centre |
| 12 | F3 | IPM module fault | Contact the Voltas service centre |
| 13 | F4 | Compressor shell roof fault/protection | Contact the Voltas service centre |
| 14 | F5 | Discharge temperature sensor fault | Contact the Voltas service centre |
| 15 | F6 | Section temperature sensor fault | Contact the Voltas service centre |
| 16 | F7 | Outdoor coil temperature sensor fault | Contact the Voltas service centre |
| 17 | F8 | Outdoor ambient temperature sensor fault | Contact the Voltas service centre |
| 18 | F9 | Outdoor DC fan fault | Contact the Voltas service centre |
| 19 | P1 | Outdoor machine AC current protection | Contact the Voltas service centre |
| 20 | P2 | Compressor phase current protection | Contact the Voltas service centre |
| 21 | P3 | Outdoor unit over-high or over-low AC voltage protection | Contact the Voltas service centre |
| 22 | P4 | DC voltage over-high or over-low voltage protection | Contact the Voltas service centre |
| 23 | P5 | IPM over-high temperature protection | Contact the Voltas service centre |
| 24 | P6 | Discharge temperature overheat protection | Contact the Voltas service centre |
| 25 | P7 | Cooling indoor coil anti freezing protection | Contact the Voltas service centre |
| 26 | P8 | Cooling outdoor coil overheat protection | Contact the Voltas service centre |
| 27 | P9 | Heating indoor coil overheat protection | Contact the Voltas service centre |
| 28 | PC | Cooling outdoor ambient temperature over-low protection | Contact the Voltas service centre |
| 29 | PH | Heating outdoor ambieent temperature over-high protection | Contact the Voltas service centre |
| 30 | L1 | Drive bus voltage over-high protection | Contact the Voltas service centre |
| 31 | L2 | Drive bus voltage over-low protection | Contact the Voltas service centre |
| 32 | L3 | Drive phase current overload fault | Contact the Voltas service centre |
| 33 | L4 | Phase current samping abnormal | Contact the Voltas service centre |
| 34 | U1 | IPM Over current protection | Contact the Voltas service centre |
| 35 | U3 | Compressor Over current protection | Contact the Voltas service centre |
| 36 | U4 | Over voltage protection | Contact the Voltas service centre |
| 37 | U5 | Low voltage protection | Contact the Voltas service centre |
| 38 | U7 | Over speed protection | Contact the Voltas service centre |
Blue Star AC Error Code
We have prepared a list of all Blue Star Air Conditioner error codes and their description for your convenience. If you are known what the problem is, then you easily can encounter the issues and also can let the maintence team to know about the issues and error correctly.
| S.No. | AC Error Code | Code Description |
|---|---|---|
| 1 | E0 | IDU EEPROM issue |
| 2 | E1 | ODU coil medium-high error |
| 3 | E2 | IDU coil frozen protection |
| 4 | E4 | Discharge temperature high error |
| 5 | E5 | AC input over current protection |
| 6 | E6 | Communication error |
| 7 | E8 | Zero crossing error |
| 8 | EE | ODU EEPROM error |
| 9 | EC | Refrigerant leak detection |
| 10 | F1 | Indoor room temperature sensor issue |
| 11 | F2 | IDU coil temperature sensor issue |
| 12 | F3 | Ambient temperature sensor issue |
| 13 | F4 | ODU coil temperature sensor fault |
| 14 | F5 | ODU discharge temperature sensor fault |
| 15 | P3 | Drive phase current overload fault |
| 16 | P4 | DC bus bar high voltage and low voltage protection |
| 17 | P7 | IPM fault |
| 18 | P5 | Compressor phase current protection |
| 19 | P8 | IPM over high-temperature protection |
| 20 | PH | AC over-voltage and under-voltage protection |
| 21 | L1 | Drive phase voltage overload protection |
| 22 | L2 | Drive phase voltage over low protection |
| 23 | L3 | Outdoor DC fan fault |
| 24 | L4 | Phase current sampling not normal |
| 25 | LC | Compressor out of step fault |
| 26 | LC | Compressor startup failure |
| 27 | H6 | IDU fan motor issue |
Summary:
If your AC unit is facing any technical fault, then above provided list of AC error code helps you to better understand what kind of issue is and what is it meaning.
