Carrier Air Conditioning Error Code Solution|How to Reset a Carrier Air Conditioner

Carrier Air Conditioning Error Code

error code
error code

Carrier Air Conditioning Error Code

EO-(OL 1 Time)Indoor unit EEPROM parameter error.

E1-(OL 2 Time)Indoor / outdoor units communication error.

E3-(OL 4 Time)The speed of the indoor fan has gone out of control.

E4-(OL 5 Time)Indoor room temperature sensor T1 open circuit or short circuit.      

E5-(OL 6 Time)Evaporator coil temperature sensor T2 open circuit or short circuit.

EC-(OL 7 Time) Refrigerant leak detection.

F1-(OL 2 Time,TL on)Outdoor ambient temperature sensor T4 open circuit or short

F2-(OL 3 Time TL on)circuit. Condenser coil temperature sensor T3 open circuit or short circuit. 

F3-(OL 4 Time,TL on)  Compressor discharge temperature sensor T5 open circuit or short circuit.

F4-(OL 5 Time,TL on)Outdoor unit EEPROM parameter error.

F5-(OL 6 Time,TL on)The speed of the outdoor fan is out of control.

P0-(OL 1 Time,TL flash)Strong current protection over IPM malfunction or IGBT.

P1-(OL 2 Time,TL flash)Over voltage or low voltage protection.

P2-(OL 3 Time,TL flash)High temperature protection of compressor top diagnostics and solutions.

P4-(OL 4 Time,TL flash)Inverter compressor drive error.                                                         

F8-(OLF 9 Time)Compressor Suction Temperature sensor defective.                             

L3-(OLF 33 Time)Drive Phase current overload defective.                                                     

L4-(OLF 34 Time)Phase Current Sampling defective.                                                             

FO-(OLF 13 Time)Outdoor AC Current protection.                                                                   

L1-(OLF 31 Time)Drive bus voltage overload protection.                                                       

L2-(OLF 32 Time)Drive bus voltage overlow protection.                                                       

P5-(OLF 14 time)Compressor phase current protection.                                                       

P6-(OLF 16 Time)Outdoor over high/over-low DC voltage protection.                             

P7-(OLF 17 Time)IPM Temperature over heat protection.                                                     

P8-(OLF 18 Time)Compressor discharge Temperature overheat protection.               

P9-(OLF 19 Time)Cooling indoor Unit anti-freezing protection.                                       

PU-(OLF 20 Time)Cooling Outdoor Coil over heat protection.                                           

PE-(OLF 21 Time)Heating inddoor  Coil over heat protection.                                             

PC-(OLF 22 Time)Cooling outdoor ambient Temperature over-low protection.         

PH-(OLF 23 Time)Heating outdoor ambient Temperature over-high protection.             

E2-(OLF 27 Time)Zero crossing signal detection error.

Carrier Air Conditioning Error Code

OLF(Outdoor LED Flash) ,OL (Operation Lamp ,TL(Timer Lamp)

How to Reset a Carrier Air Conditioner

1.-Locate the “Reset” button on the control panel of the air conditioner. 
2.-Hold the “Reset” button for 3 seconds and then release. 
3.-Press and hold the “Reset” button for another 3 seconds – this time there should be a light flash on the display.
4.-Wait a few moments while the unit resets.

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