LGRED Heat Installation Manual

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MULTI F / MULTI F MAX with LGRED Outdoor Unit Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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MULTI
F
MAX
MULTI
F
WITH
Error Code Description Indoor Unit Operation Status
00 No error ON
01 Indoor unit room temperature sensor error OFF
02 Indoor unit inlet pipe sensor error OFF
03 Controller error OFF
04 Drain pump error (optional) OFF
05 Communication error between indoor unit and outdoor units OFF
06 Indoor unit outlet pipe sensor error OFF
07 Different mode operation error OFF
09 Indoor unit EPROM error OFF
10 Indoor unit BLDC motor fan lock OFF
Receiver
LED 1
(UNITS PLACE)
LED 2
(TENS PLACE)
Figure 130: Example of Standard Wall-Mounted Indoor Unit LEDs.
Figure 131: Example of Art Cool Mirror Wall-Mounted Indoor Unit
LEDs.
Number of Blinks = Error Code
LED 1: Units PlaceLED 2: Tens Place
Troubleshooting Using Error Codes
Refer to Tables 41 and 42 for error codes that are generated from
the indoor and outdoor units. These codes indicate different types of
unit failures, assist in self-diagnosis, are the most common that will
manifest through these units. Error codes are displayed on indoor
unit LEDs, wired remote controllers, the outdoor unit PCB, and
through LG Monitoring View (LGMV) diagnostic software.
Systems may generate additional codes not listed here. Contact LG
Support if these types of errors are seen and a simple power down
and boot up has not corrected the issue.
Do not attempt to fix
the system yourself.
• If two or more errors occur simultaneously, the highest error code
number is displayed first.
• After error is resolved, the error code does not display.
Decoding the Error Display
See images and table below for indoor unit error codes, location of
LEDs, and operation status.
The first and second number on the LED indicates error number. Ex-
ample: 21 = LED1 (Red light) 2x blink, LED2 (Green 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.
Figure 132: Example of Ceiling Cassette Indoor Unit LEDs.
Table 41: Indoor Unit Error Codes.
ERROR CODE TABLES
LED 1
(UNITS PLACE)
LED 2
(TENS PLACE)
Receiver
Please refer to the Safety Precautions on pages 4-7 for more detail to prevent injury or death regarding the operation and
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LED appearances may vary.