Troubleshooting - LG ARNH963K2A2 Installation Manual

troubleshooting codes
The following error codes (Table 27) will display during self diagnosis of the Hydro Kit along with any manifestations of malfunctions during
the operation of the unit. Errors codes will display by illuminating through red/green LEDs (red for a fault, green for normal function) on the
wired remote controller and on the outdoor unit's control board (PCB).
• If two or more faults occur at the same time, the error code with the lower number will display first.
• If an Inverter PCB error occurs, Error Code 12 will display on the remote controller, and Inverter PCB board LED can be used to verify the
nature of the error display.
• After correction of the issue, the error code with disappear from the display.
• Error Codes 01, 08, 17, 18 can be operated during emergency operation (Safe Mode) and are marked accordingly in the table.
• Some error codes are exclusive to Hydro Kit Medium Temperature (K2) or Hydro Kit High Temperature (K3) units and will be marked accord-
ingly in the table.
Inverter Pcb fault leD Display
The following sequencing of the LED lights will display during a fault display. Once you determine the error code based on the sequencing
and color of the LED lights, refer to Table 27 for cause and resolution. Note that if the sequencing code is a three digit number, those codes
are based on the outdoor unit and not on the Hydro Kit. Refer to the manual associated with your outdoor/water source unit for a complete
list of error codes, their cause and resolution.
How to Interpret LEd Error Codes
• A blinking Red LED will "count" the 10's of a code. Count the times the LED blinks to determine the code.
• Example: Three blinks of Red LED = 30 (10 + 10 + 10)
• A blinking Green LED will count the single digits of a code. Count the times the LED blinks to determine the code.
• Example: Five blinks of the Green LED = 5 (1 + 1 + 1 + 1 + 1)
• If the Red LED and Green LED blink simultaneously, it will count the '100's" of a code. Count the times both are blinking to determine the
code.
• Example: Red and Green LED's blink twice, but both at the same time in sequence = 200 (100 + 100)
Based on the rules above, a code of 115 would display as follows:
• Red and Green LED blink once at the same time (100)
• Red LED blinks one time (10)
• Green LED blinks 5 times (5)
total= 115 for the error code.
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG Life's Good" is a registered trademark of LG Corp.

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