LG Multi V water mini Series Installation Operation & Maintenance page 81

Table 36: Error Codes, continued.
Error Code
8 6 1 Water source unit main PCB onboard EPROM error.
1 1 3 1 Water source unit liquid pipe temperature sensor (SC_L)
error.
1 5 1 1 Water source unit four-way reversing valve switch
(4WAY_1) error.
1 8 1 1 Inlet water temperature sensor error (DISCHARGE (C2).
For detailed information on how to troubleshoot each error, see the Water Mini Service Manual on www.lg-vrf.com.
Description
Due to our policy of continuous product innovation, some specifications may change without notification.
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ERROR CODE TABLES
Details
• Verify the EPROM is present and in the socket correctly.
• Check if all pins are in and are not bent.
• Check if notch in the chip lines up with the arrow on the
socket.
• Check the connection at the CN-33 socket on the water source
PCB.
• Thermistor has disconnected or short circuited.
• Check the connection at the CN-09 socket on the water source
PCB.
• Thermistor has disconnected or short circuited.
• Check the connection at the CN-36 socket on the water source
PCB.
• Thermistor has disconnected or short circuited.
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