If a system failure is detected, the error codes of Bork air conditioners are displayed on the front panel of the outdoor unit. Codes are a combination of flashing and luminous multi-colored LEDs.
| Decoding errors air conditioners Bork | Error Code Air Conditioner Bork Diode 1 | Diode 2 | Diode 3 |
| Bork Air Conditioner Error Rise and Drop Pressure Violation | blinks | blinks | Blinks |
| Refrigerant cooling in heat mode | – | Glows | Glows |
| Compressor temperature rise | Glows | – | Glows |
| Too weak voltage in the system | – | Glows | – |
| Bork Air Conditioner Error: Engine Speed Corrected | Glows | Glows | Glows |
| The outdoor unit is protected against overload | – | Glows | Blinks |
If the compressor does not turn on, the outdoor unit LEDs show the following error codes for Bork air conditioners
| Decoding error conditioner Bork | Diode 1 | Diode 2 | Diode 3 |
| Works fine | – | – | – |
| Short circuit in the room temperature sensor | – | – | Glows |
| Short circuit of the temperature sensor of the internal heat exchanger | – | Glows | – |
| Errors Bork conditioners: Short circuit compressor temperature sensor | Glows | – | – |
| The function of the temperature sensor of the external heat exchanger is impaired | Glows | – | Glows |
| The function of the outdoor temperature sensor is impaired | Glows | Glows | – |
| Power failure | Blinks | Glows | – |
| The power supply to the outdoor unit is interrupted. | Blinks | – | Glows |
| No communication between indoor and outdoor units | – | – | Blinks |
| Overvoltage protection enabled | – | Blinks | – |
| Errors Bork conditioners: Maximum current control | Glows | Blinks | Glows |
| Equipment disconnected due to overload | Glows | Blinks | – |
| Compressor temperature exceeded | – | Blinks | Glows |
| Current monitoring of the outdoor and indoor units shuts down the system | Glows | Glows | Blinks |
| Ambient temperature higher or lower than planned by the manufacturer | Glows | Blinks | Blinks |
| Refrigerant leak | Blinks | Glows | Glows |
| Compressor overheating | – | Glows | Blinks |
| Incorrect operation of the outdoor unit | Glows | Glows | Glows |
| Incorrect operation of the indoor unit motor | – | Blinks | Blinks |
| Control board message broken | – | Glows | Glows |
| Compressor stopped due to error | Blinks | – | Blinks |
| Fan breakdown | Blinks | Blinks | Glows |
| Outdoor unit compressor overheated | Glows | Blinks | Glows |
In order to start the self-diagnosis function, press the POWER button four times in ten seconds and the error codes of the Bork air conditioner will be displayed.
