LG Multi V Water IV - Error Code Tables: Heat Recovery Unit Errors; Heat Recovery Unit Error Codes

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MULTI V Water IV System Installation Manual
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For detailed information on how to troubleshoot each error, see the Water Source Unit Service Manual on www.lghvac.com.
ERROR CODE TABLES
For detailed information on how to troubleshoot each error, see the Water Source Unit Service Manual on www.lghvac.com.
Error Code Description Possible Cause
2 0 1 C1–C16
1
HRU liquid pipe temperature sensor error
Sensor open/short
• Defective temperature sensor connection
• Defective temperature sensor
• Defective WSU PCB
2 0 2 C1–C16
1
HRU sub-cooling inlet pipe temperature sensor
error
Sensor open/short
• Defective temperature sensor connection
• Defective temperature sensor
• Defective WSU PCB
2 0 3 C1–C16
1
HRU sub-cooling discharge pipe temperature
sensor error
Sensor open/short
• Defective temperature sensor connection
• Defective temperature sensor
• Defective WSU PCB
2 0 4 C1–C16
1
Communication error Communication between WSU and HRU has failed
Table 77: Heat Recovery Unit Error Codes.
1
Heat Recovery Unit number. Systems can have from 1 to 16 HRUs.