MIV V5 Heat Recovery DC Inverter R410A
DM14-01.01.18en
Troubleshooting
156
2.3 LED on main control board instructions
LED1:
Power supply indicator lamp. The lamp will be on if the power supply is normal.
LED2:
Running indicator lamp. The lamp will be on if the system running is normal.
LED3:
Malfunction indicator lamp of network centralized control chip. The lamp will flash in three-phase phase
sequence protection.
LED4:
Running indicator lamp of inverter module. The lamp will be on if the compressor is running.
LED5:
Malfunction indicator lamp of inverter module. The lamp will flash if the inverter module is faulty and the
error code will display on digital tube.
LED6:
Running indicator lamp of inverter module. The lamp will be on if the compressor is running.
LED7:
Malfunction indicator lamp of inverter module. The lamp will flash if the inverter module is faulty and the
error code will display on digital tube.
LED3 LED2 LED1
LED5
LED4
LED7
LED6