LG Refrigerator LSXS26326S Service Manual

The LG LSXS26326S is a 26 cubic foot French Door Refrigerator with external water and ice dispenser, linear compressor technology, Smart Cooling Plus™ system, Door Cooling+™, and Smart Diagnosis™ capability. This service manual provides authorized technicians with essential information for installation, maintenance, troubleshooting, and repair. Below are key sections covering safety, specifications, component location, disassembly, diagnostics, and parts information.

1. Safety Precautions 2. Product Specifications 3. Component Location & Access 4. Disassembly & Reassembly Procedures 5. Electrical System Diagnostics 6. Refrigeration System 7. Control Panel & User Interface 8. Water & Ice System 9. Error Code Diagnostics 10. Parts List & Exploded Views 11. Performance Test Data

Safety Precautions

Before servicing, disconnect power and review all warnings.

Hazard	Precaution
Electrical Shock	Unplug unit or disconnect circuit breaker before accessing internal components.
Refrigerant	Use proper recovery equipment. Avoid open flames. R-600a is flammable.
Sharp Edges	Wear cut-resistant gloves when handling evaporator coils or sheet metal.
Heavy Components	Use assistance when lifting compressor or sliding out unit.
Water Leaks	Ensure water line is shut off before disconnecting dispenser system.

Product Specifications

Model: LSXS26326S
Type: French Door Refrigerator with Bottom Freezer
Total Capacity: 26.0 cu. ft.
Refrigerant: R-600a (Isobutane)
Compressor: Linear Inverter
Voltage: 120V AC, 60Hz
Amperage: 6.5A (Running), 15A (Start-up)
Water Filter: LT1000P (or compatible)
Dimensions (HxWxD): 69.875" x 35.75" x 34.5"
Weight: 298 lbs

Component Location & Access

Key internal components: Main PCB, Inverter PCB, Compressor, Evaporator Fan, Condenser Fan, Defrost Heater, Temperature Sensors, Water Inlet Valve, Ice Maker Assembly.

Main PCB Access: Remove rear service panel at top of refrigerator compartment.
Compressor Access: Remove lower rear kick plate and compressor cover.
Evaporator Access: Remove interior rear panel in freezer compartment.
Ice Maker Access: Remove ice bucket and mounting screws from freezer ceiling.

WARNING! Label all wires and connectors before disassembly.

Disassembly & Reassembly Procedures

Step-by-step guide for common service tasks.

Door Removal: Open door, remove hinge cover, disconnect wiring harness (if applicable), support door, remove hinge bolts.
Control Panel: Pry off trim bezel, disconnect ribbon cable, remove mounting screws.
Evaporator Fan: Remove freezer rear panel, disconnect connector, remove fan mounting screws.
Water Filter Housing: Shut off water, release locking tabs, disconnect inlet/outlet lines.

CAUTION! Handle door gaskets carefully to avoid tears.

Electrical System Diagnostics

Use multimeter to test continuity, voltage, and resistance.

Component	Test Point	Expected Value
Compressor Windings	Between terminals (C-S, C-R, S-R)	Resistance: 5-20Ω (varies by temp)
Defrost Heater	Across heater terminals	Continuity (~20-40Ω)
Evaporator Fan Motor	Across motor terminals	Continuity (~100-300Ω)
Thermistor (Fridge)	Resistance at 77°F (25°C)	~10kΩ
Water Inlet Valve	Solenoid coil resistance	~200-500Ω

Refrigeration System

Linear compressor, capillary tube, evaporator, condenser. Charging: R-600a, 2.0 oz ± 0.1 oz.

Leak Check: Use nitrogen and electronic leak detector at all joints.
Evacuation: Deep vacuum to below 500 microns.
Charging: Charge by weight using precision scale.
Performance Check: Monitor evaporator inlet/outlet temperature differential (10-15°F).

WARNING! R-600a is flammable. No brazing on pressurized system.

Control Panel & User Interface

Touch panel with temperature settings, filter reset, ice maker control, and diagnostic mode entry.

Diagnostic Mode Entry: Press and hold "Ice Type" and "Light" buttons simultaneously for 3 seconds. Use arrows to scroll through test modes.

Test Functions: Compressor relay test, fan motor test, defrost heater test, sensor values display.

Water & Ice System

Components: Water inlet valve, filter, ice maker assembly, water dispenser solenoid, water tank.

No Water Flow: Check water supply, filter, inlet valve, and clogged lines.
Ice Maker Not Working: Test ice maker motor, thermostat, and fill cup alignment.
Leaking Water: Inspect water tank for cracks, connections, and drain tube.
Filter Reset: After filter replacement, press and hold "Filter Reset" for 3 seconds.

Error Code Diagnostics

Error Code	Description	Probable Cause
FF / EF	Freezer Fan Error	Fan motor failure, obstruction, wiring.
RF / RE	Refrigerator Fan Error	Fan motor failure, obstruction, wiring.
dH / dF	Defrost Heater Error	Heater open, thermistor, defrost sensor.
IE / IC	Ice Maker Communication Error	Wiring harness, connector, ice maker PCB.
tS / tE	Temperature Sensor Error	Open/short in fridge or freezer sensor.

Clear Codes: Enter diagnostic mode and select "Error Clear" or disconnect power for 10 minutes.

Parts List & Exploded Views

Refer to official LG parts catalog for part numbers. Key replacement parts:

Linear Compressor Assembly: Part # 383JER2005A
Main Control Board: Part # 6871JQ2002B
Inverter PCB: Part # 6871JQ1003A
Ice Maker Assembly: Part # 6380ER1002E
Evaporator Fan Motor: Part # 6327FR2005A
Water Inlet Valve: Part # 3820ER4001C

Note: Always verify part number against model and serial number.

Performance Test Data

Under normal ambient conditions (70°F), after 24 hours of operation:

Parameter	Expected Range
Refrigerator Compartment Temp	36°F - 38°F
Freezer Compartment Temp	-2°F to 2°F
Compressor Run Current	0.8A - 1.2A
Compressor Casing Temperature	130°F - 180°F
Condenser Outlet Temperature	90°F - 120°F
Evaporator Inlet/Outlet ΔT	10°F - 15°F

Service Support: LG Service Network: 1-800-243-0000. Website: www.lg.com.