DOWNLOAD LG AS-H126U / LS-C126U / LS-H126U Service Manual ↓ Size: 8.66 MB | Pages: 127 in PDF or view online for FREE

Name: LG AS-H126U / LS-C126U / LS-H126U
Brand: LG
SKU: 86870
Rating: 4 (1 reviews)

as-h126u, ls-c126u, ls-h126u service manual

Model: AS-H126U LS-C126U LS-H126U
Pages: 127
Size: 8.66 MB
Type: PDF
Document: Service Manual
Brand: LG
Device: Air Conditioner
File: as-h126u-ls-c126u-ls-h126u.zip
Date: 2018-11-20

PREV: LG AS-H076QLA0_QNA0_QLL0 / AS-H096RLL0_RNA0 / AS-H126RLA0_RNA0_RLM0 / LS-H076QLL0_QGL0_QGA2 / LS-H096QLL1_QGL1 / LS-H096QGA2_QLA2_QLA Service Manual

LG AS-H126U / LS-C126U / LS-H126U Service Manual ▷ View online

-53-
8. When Heating does not operate
Operate “Heating Mode(     )” by setting the desired temperature of the
remote control is higher than one of the indoor temperature by 2°C at
least.
In heating Mode, the indoor fan operates in case the pipe temperature
is higher than 28°C.
Check the connector of intake and pipe sensor(thermistors)
• Check the related circuit of RY-4WAY
• Check the indoor room temperature is disconnected or not (about
10K
Ω/at 25°C).
• Check the indoor pipe temperature is disconnected or not (about
5K
Ω/at 25°C).
Turn ON Main Power
Check the DC voltage on the PWB ASSEMBLY
• The details of check are as followings
Check point
Between Micom
(NO.59) and GND
Between IC01M
(NO.11) and GND
Comp ON
DC 5V
Below DC 1V
Comp OFF
DC 0V
About DC
12V
Check point
Between Micom
(NO.52) and GND
Between IC02M
(NO.11) and GND
4 way ON
DC 5V
Below DC 1V
4 way OFF
DC 0V
About DC 12V
Check point
Between Micom
(NO.53) and GND
Between IC02M
(NO.12) and GND
Fan ON
DC 5V
Below DC 1V
Fan OFF
DC 0V
About DC 12V
• Comp Relay.
• 4 way Relay
• Outdoor fan Relay

-54-
Turn off Main Power
• Check the electrical wiring diagram of outdoor side.
• Check the abnormal condition for the component of
Compressor/Outdoor Fan Motor, 4 way.
• Check the "open" or "short" of connecting wires between indoor and
outdoor.

-55-
Electronic Control Device 
(1) MAIN P.W.B ASSEMBLY (AC PART)
• TOP VIEW
(1) MAIN P.W.B ASM (AC)
• BOTTOM VIEW

-56-
(2) DISPLAY ASSEMBLY
– 6302A90003A
• TOP VIEW
SEJIN ELECTRON INC.
SVM-GP1119AI  
P/N 3210018043
1
REV1
C13
C7
C8
C9
D1
Q1
Q2
R9
R13
R2
R6
R7 
R8
R10
TP1
TP2
TP3
TP4
R17
R18
R19
C14
C15
C18
R4
R3
TP5
TP6
M42
M43
C19
C20
C21
R5
M45
M44
TP1
TP2
TP3
TP4
TP7
TP8
• BOTTOM VIEW

Display

Click on the first or last page to see other AS-H126U / LS-C126U / LS-H126U service manuals if exist.

RANDOM: