Error Codes - LG LV181HV4 Installation Manual

Troubleshooting Using Error Codes
Refer to the table below and on the next two pages for error codes
that are generated from the indoor and outdoor units. These codes
are the most common. Your particular system might generate addi-
tional codes not listed here. Please contact LG Support if you see
these types of errors and a simple power cycle has not corrected the
issue.

Error Codes

• Refer to the figure below for your particular indoor unit's LED
configuration.
• Indicate different types of unit failures, assists in self-diagnosis and
to track the frequency of occurrence.
• Check the wired remote controller display first for error codes. Error
codes are also shown on the control board LEDs of indoor and
outdoor units and the SIMs app.
• If two or more errors occur simultaneously, the lower error code
number is displayed first.
• After error is resolved, the error code does not display.
Table 21: Indoor Unit Error Codes.
Error
Code
1 Indoor unit room temperature sensor error
2 Indoor unit inlet pipe sensor error
3 Wired remote control error
4 Float switch error (optional)
5 Communication error between indoor unit and outdoor units
6 Indoor unit outlet pipe sensor error
9 Indoor unit EPROM error
10 Indoor unit BLDC motor fan lock
12 Indoor unit middle pipe sensor error
67 Outdoor brushless direct current (BLDC) fan motor lock error
Decoding the Error Display
The first and second number on the LED indicates error number. Ex-
ample: 21 = LED1 (Green light) 2x blink, LED2 (Red light) 1x blink.
Error Code Nomenclature Definitions
• MICOM: Non-volatile memory chip where unit setup information is
stored.
• EPROM: Non-volatile memory chip where device identification,
size, and factory defined default component operating parameters
are stored.
Description
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" is a registered trademark of LG Corp.
TROUBLESHOOTING
No. of Times Indoor Unit LEDs Blink
LED1
1X
2X
3X
4X
-
6X
9X
-
2X
6X
Error Codes
LED2
-
-
-
5X
-
-
1X
1X
7X
69