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Anyone got a manual or fault codes for an LG LG B48AWYN762?
Got one to look at tommorow, LG have given me authority to repair as the customer can't get anyone out to look at it under warranty.
I have looked at heaps of older LGs in the past out of warranty, but not any new ones, so my info is old. EG they say CH12 fault, and none of my older stuff has that fault code.
foun
Error Indicator:
•
The function provides self-diagnosis and displays an error code if there is any trouble.
•
Error codes are displayed on the Indoor unit’s Wired Remote as CH**, and/or Fascia Display. In
addition, the code is indicated via LED’s on the outdoor unit control board.
•
If more than two troubles occur simultaneously, the lower number of error code is displayed first.
•
After an error occurs, if error is released, error LED is also released simultaneously.
Indoor Unit Faults:
Error
code
Contents Case of error
Indoor
Status
01 Air sensor (open/short) Open / Short circuit Off
02 Inlet pipe sensor Open / Short circuit Off
03
Communication(Indoor
Wired
R/Control)
Communication Poorly Off
04 Drain pump / Float switch
Float switch Open circuit (High level water
alarm)
Off
05 Communication(Indoor
Outdoor) Communication Poorly Off
06 Outlet pipe sensor Open / Short circuit Off
07 Different operation mode Indoor units set in different operation modes Off
HL High Limit (Float Switch) Same as code 04, Float switch Open circuit Off
CL Child Lock Function selected
Not an error, press Timer & Min buttons
simultaneously for 3 seconds to toggle On/Off
On
Po Jet Cool Mode selected
Not an error, press Jet Cool button to toggle
On/Off
On
LG Air Conditioning Universal & Multi Split Fault Codes Sheet
Hendra/Macedo - April 2007
- 2 -
Outdoor Unit Faults can also be read from the outdoor unit PCB using the flashing LED’s as below:
Error
code
Contents
LED01G
(Red)
LED02G
(Green)
Case of Error
Outdoor
Status
21
IPM Fault (Compressor Over
current)
2 times 1 time
Compressor malfunction, IPM
Fault
Off
22 CT 2 (Max. Current) 2 times 2 times Current is 14A
Off
23 DC Link Low Volt. 2 times 3 times DC Link volt. Is 140V
Off
24 Low / High Pressure 2 times 4 times
Low / High press switch
OPEN
Off
25 AC Low / AC High Volts. 2 times 5 times Abnormal AC volt. Input. Off
26 DC Compressor Position 2 times 6 times Off
27 PSC Fault (Reactor) 2 times 7 times Off
28 DC Link High Volts 2 times 8 times Off Off
32 Discharge Pipe Temp. High (INV) 3 times 2 times Off Off
33
Discharge Pipe Temp. High
(Cons.)
3 times 3 times Off Off
40 CT Circuit 4 times CT Circuit malfunction Off
41 D-Pipe sensor INV. (Open/Short) 4 times 1 time Open / Short circuit. Off
44 Air sensor (Open/Short) 4 times 4 times Open / Short circuit Off
45 Cond. Pipe Sensor (Open/Short) 4 times 5 times Open / Short circuit Off
46
Suction Pipe Sensor
(Open/Short)
4 times 6 times Open / Short circuit Off
47
D-pipe Sensor Cons.
(Open/Short)
4 times 7 times Open / Short circuit Off
48 D-Pipe & Air Sensor (Open) 4 times 8 times Dual Sensor unplugged Off
51 Over Capacity 5 times 1 times Over Load Combination Off
52
Communication Error (Main
micom
Sub micom)
5 times 2 times Poor/Loss of Communication Off
53
Communication Error (Indoor
Outdoor)
5 times 3 times Poor/Loss of Communication Off
54
Outdoor 3-Phase Power Supply
Reverse Phase / Missing Phase
5 times 4 times Incorrect Wiring Off
60 EEPROM Check Sum 6 times Check Sum Mis-Match Off
61 Cond. Pipe Sensor Temp. High 6 times 1 time Cond. Temp. High Off
62 Heat Sink Sensor Temp. High 6 times 2 times Heat Sink Temp. High Off
63 Cond. Pipe Sensor Temp. Low 6 times 3 times Cond. Temp. Low Off
65 Heat Sink Sensor (Open/Short) 6 times 5 times Open / Short circuit Off
67 Outdoor BLDC Fan Lock 6 times 7 times Fan Motor/Circuit Problem Off
105
Comms. Error (Main board
Fan
board)
6 times 5 times Poor/Loss of Communication Off
d some
Thanks IM, I've got all the old stuff like that page you tried to copy/paste. Just nothing on the new units/controller, or anything with CH12.
Hi Paul, I have a whole range of data on the new stuff, (none on the older).
CH12 Error Code: "EEPROM Sum Check Error - Outdoor unit PCB EEPROM failure, try removing EEPROM and refitting if removable (possible contact fault), otherwise replace the PCB if the EEPROM is non removable.
Edit: Paul can you clear some of your private messages, your inbox is full and I have some further info for you.
Done, and thanks.