LV-B1861HL — LG Air Conditioner Service Manual (repair manual)

Model
LV-B1861HL
Pages
61
Size
2.17 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
lv-b1861hl.zip
Date

View LG LV-B1861HL Service Manual online

Functions
ƒU
Room temperature sensor. (Thermistor)
ƒU
Maintains the room temperature in accordance with the Setting Temp. 
ƒU
Indoor fan is delayed for 5 seconds at the starting.
ƒU
Restarting is inhibited for approx. 3 minutes.
ƒU
High, Med, Low, Chaos
--- Lights up in operation
--- Lights up in Sleep Mode
--- Lights up in Timer Mode
--- Lights up in Deice Mode or Hot Start Mode (only Heating Model) 
--- Lights up during compressor running
(only Cooling Model)
ƒU
Intermittent operation of fan at low speed.
ƒU
The fan is switched to low(Cooling), med(Heating) speed.
ƒU
The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
ƒU
The fan is switched to intermittent or irregular operation
ƒU
The fan speed is automatically switched from high to low 
speed. 
ƒU
The louver can be set at the desired position or swing 
up and down, right and left (not on all models) automatically.
ƒU
The setting temperature, indoor fan speed and desired 
operation made are automatically set by fuzzy rule.
Indoor Unit
Operation ON/OFF by Remote controller
Sensing the Room Temperature
Room temperature control
Starting Current Control
Time Delay Safety Control
Indoor Fan Speed Control
Operation indication Lamps (LED)
Soft Dry Operation Mode
ƒU
Both the indoor and outdoor fan 
stops during deicing.
ƒU
Hot start after deice ends.
ƒU
The indoor fan stops until the 
evaporator piping temperature 
will be reached at 28°C.
Deice (defrost) control (Heating)
Hot-start Control (Heating)
Sleep Mode Auto Control
Natural Air Control by CHAOS Logic
Airflow Direction Control
Auto Operation
–3–
–4–
Soft Dry Operation Mode.(       )
Remote Controller
Operation ON/OFF
Reset
Operation Mode Selection
Fan Speed Selection
Room Temperature Display
Temperature Setting
Setting the Time or Timer
Timer Selection
Timer Setting
Timer Cancel
Sleep Operation
Airflow Direction Control
(Cooling 
model only)
(Heating 
model only)
TEMPERATURE
LOW
HIGH
(Low)
(Med)
(High)
(CHAOS)
Cooling Operation Mode.(       )
Heating Operation Mode.(       )
Auto Operation Mode.(       )
Fan Operation Mode
ON
OFF
SET
CANCEL
: High:39°C
¡Œ
LOW:11°C
: OFF, ON, OFF
¡Œ
ON
: Cancel Sleep Mode, Timer ON or Timer OFF.
: 1, 2, 3, 4, 5, 6, 7hr, Off Timer
: Fan Operates without cooling. (Cooling model only)
Cooling
Heating 
Down to 18°C
Up to 30°C
,
Down to 16°C
Up to 30°C
,
–21–
Note)
For normal operation after checking by test mode, you should press SW1 nine times for resetting or reconnect
the power cord. 
Self-diagnosis Function
1. Protection of the evaporator pipe from frosting
If the temperature of the indoor pipe is below 0°C after 7 mins from starting the compressor, the compressor
and the outdoor fan is stopped, and then after 3 mins delay of the compressor and the temperature of the
indoor pipe is over 7°C, the compressor and the outdoor fan is reoperated.
2. Thermistor Cut Off or Short 
Cut Off/Short  : Blinks on and off the operation mode LED. (0.5 sec ON/3 sec OFF)
• Coolling, Soft Dry, Fan, Heating 
• Timer Mode 
• Sleep Mode 
• Hot-start, Deice
Operation Indicator
Timer Indicator 
Sleep Timer Indicator 
Deice Indicator 
• Coolling, Soft Dry, Fan, Heating 
• Timer Mode 
• Sleep Mode 
• Outdoor Unit Operating
Operation Indicator
Timer Indicator 
Sleep Timer Indicator 
Outdoor Unit Operation
1. Heating Model
2. Cooling Model
Display Function 
–21–
Note)
For normal operation after checking by test mode, you should press SW1 nine times for resetting or reconnect
the power cord. 
Self-diagnosis Function
1. Protection of the evaporator pipe from frosting
If the temperature of the indoor pipe is below 0°C after 7 mins from starting the compressor, the compressor
and the outdoor fan is stopped, and then after 3 mins delay of the compressor and the temperature of the
indoor pipe is over 7°C, the compressor and the outdoor fan is reoperated.
2. Thermistor Cut Off or Short 
Cut Off/Short  : Blinks on and off the operation mode LED. (0.5 sec ON/3 sec OFF)
• Coolling, Soft Dry, Fan, Heating 
• Timer Mode 
• Sleep Mode 
• Hot-start, Deice
Operation Indicator
Timer Indicator 
Sleep Timer Indicator 
Deice Indicator 
• Coolling, Soft Dry, Fan, Heating 
• Timer Mode 
• Sleep Mode 
• Outdoor Unit Operating
Operation Indicator
Timer Indicator 
Sleep Timer Indicator 
Outdoor Unit Operation
1. Heating Model
2. Cooling Model
Display Function 
Page of 61
Display

Download LG LV-B1861HL Service Manual (Repair Manual)

Here you can view online or download LG LV-B1861HL Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair LG LV-B1861HL Air Conditioner. Information contained in LG LV-B1861HL service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).