| E36 | Internal error in the PCB (internal fault). | Hardware/firmware fault or loss of communication in PCB 80190460C; check 230 V power supply and 5/12 V voltages of the PCB, communication BUS, and if it persists, test with a known good board or reprogram/update. |
| A06 | Internal error (Slave). | The slave PCB 80190460C detects an internal fault/safety relays; check LEDs/diagnostics on the board, power supply, and BUS wiring; if it persists after a reset, replace the PCB and validate with a cross-test. |
| A07 | Internal error (Slave). | Internal anomaly in the slave PCB (microcontroller/relays/communication); check Master-Slave bus and voltages on the board; confirm by temporarily replacing with an operational PCB. |
| A08 | Internal error (Slave). | Documented internal fault of the slave PCB (80190460C); check power supply and connections, and if the error persists, replace/recodify the board. |
| A10 | Internal error (software). | Software error associated with the slave PCB; rule out electrical network and BUS issues, and if it reappears after resets, replace/program the PCB 80190460C. |
| A12 | Internal error (Slave). | The slave PCB registers a persistent internal anomaly; confirm voltages and communications, and if it does not restore after the auto-reset time, replace the board 80190460C. |