| Error messages | Cause | Solution |
|---|---|---|
|
ERROR 04 PRAM ROM |
Parameter loading fails. | Turn OFF the power to the machine and turn it ON again after a while. If the same error message appears again,contact our service office or the distributor in your region. |
| 110 PCB KEY | The keyboard PCB is not available. | |
| 114 PCB PUMP | The pump PCB is not available | |
| 11e PCB SLRLY1 | No SL-Relay 1PCB | |
| 11f PCB SLIDER1 | No slider 1 PCB | |
| 134 PCB IO-EXT | Outside IO PCB undetectable | |
| 135 PCB HOTWT | Hot water control PCB undetectable | |
| 136 Z PCB | Z-PCB undetectable | |
| 147 PCB FAN2 | An error occurs on the Fan 2 PCB | |
| 14a PCB CIO1 | An error occurs on the Carrier IO1 PCB | |
| 14b PCB CIO2 | An error occurs on the Carrier IO2 PCB | |
| 14c PCB FAN2 | An error occurs on the Fan 2 PCB | |
| 155 PCB SND | An error occurs on the Snd PCB PCB | |
| 156 PCB WND | An error occurs on the Wind PCB PCB | |
| 15a PCB SLRLY2 | No SL-Relay 2PCB | |
| 15b PCB SLIDER2 | No slider 2 PCB | |
| 303 PCB MAIN ET | Control PCB trouble | |
| 304 USB INIT ERR | USB initialization error |