LG DLG3171W User Manual (English)

Questions and Answers:

M
Michelle FranklinJul 25, 2025
What to do if my LG Dryer shows 'PS', 'PF', or 'nP'?
- S
  stacyclayJul 25, 2025
  If your LG electric dryer displays 'PS', 'PF', or 'nP', it indicates a power issue. First, check the power cord connection to the terminal block and ensure it's correctly connected. Also, verify the house power supply. If the issue persists, reset the circuit breaker or replace the fuse, without increasing its capacity. If overloading the circuit is the problem, consult a qualified electrician to correct it.
K
Kerry SawyerAug 3, 2025
What to do if I need to check the duct condition of my LG DLG3171W?
- D
  Dr. Michael Ramos IIIAug 3, 2025
  If the FLOW SENSETM LED is on, check the exhaust system for restrictions and damage, and repair or replace the exhaust system as needed. Avoid long runs or runs with multiple elbows or bends. Check for blockages and lint buildup. Ensure the ductwork isn't crushed or restricted.
M
Mr. Herbert OneillAug 15, 2025
Why does the FLOW SENSTEM indicator on my LG DLG3171W show four bars during drying?
- C
  Chris JohnsonAug 15, 2025
  If the FLOW SENSTEM indicator shows four bars, it means there are many turns or restrictions in the ductwork due to lint buildup or debris. To solve this, install a shorter or straighter duct run. Check and clean the ductwork soon. You can still use the dryer, but drying times may be longer.

LG DLG3171W Specifications

General

Color	white
Dryer Capactity	7.4 cubic feet
Number of Cycles	8
Cycle Selections	cotton/normal, perm. press, delicates, bulky/large, download/super dry, freshen up, speed dry, air dry
Options	8 drying programs, more time, less time, custom program, damp dry signal, wrinkle care, child lock, signal on/off, anti-bacterial, energy saver
Stackable	yes
Venting	no
Temperature Settings	5
Temperature Selections	high, medium high, medium, low, ultra low
Temperature Control	yes
Control Type	electronic
Child Lock	yes
Cycle Signal	yes
Moisture Sensor Option	yes
Steam	no
Smart Home	no
Annual Energy Consumption	685 kilowatt hours

Weight and Dimensions

Depth	29.75 inches
Height	38.69 inches
Width	27 inches
Net Weight	134.4 pounds

Summary

IMPORTANT SAFETY NOTICE

Gas Leak Emergency Procedure

Steps to follow if you smell gas to ensure safety.

Electrostatic Discharge Precautions

Guidelines to prevent damage to electronic components from ESD.

SPECIFICATIONS

Dryer Dimensions and Capacity

Details on dryer size, weight, and drum volume for electric and gas models.

Dryer Features and Options

Lists available programs, temperature controls, sensors, and other features.

FEATURES AND BENEFITS

Control Panel Overview

Detailed illustration of the dryer's control panel and its functions.

Dryer Rack Installation

Step-by-step guide for installing the dryer rack inside the drum.

INSTALLATION INSTRUCTIONS

Stacking Kit Installation

Instructions for securely attaching a dryer onto a washing machine using a stacking kit.

Pedestal Installation

Guide for installing the dryer on a pedestal, ensuring stability and levelness.

Connecting Electric Dryers

Options and procedures for connecting electric dryers to different power supply types.

Connecting the Gas Supply

Steps for safely connecting the gas supply line to the dryer.

DRYER CYCLE PROCESS

Sensor Dry Cycles

Details on various sensor dry cycles, temperature, and time settings.

Manual Dry Cycles

Information on manual dry cycles like Air Dry and Freshen Up.

COMPONENT TESTING INFORMATION

Electrical Component Tests

Procedures for testing thermal cut-offs, thermostats, lamp holders, and door switches.

Gas Component Tests

Tests for gas valve, igniter, and flame detector resistance and operation.

MOTOR DIAGRAM AND SCHEMATIC

Motor Operation Modes

Explanation of motor operation based on centrifugal switch and resistance readings.

WIRING DIAGRAM

Electric Dryer Wiring Diagram

Detailed wiring diagram for the electric dryer model.

Gas Dryer Wiring Diagram

Detailed wiring diagram for the gas dryer model.

FLOW SENSOR FUNCTION

Flow Sensor Installation Check

Procedure to test the exhaust system's airflow using the FlowSense function.

Flow Sensor Troubleshooting

Error codes and solutions related to the flow sensor and duct blockages.

DIAGNOSTIC TEST

Activating Diagnostic Mode

Steps to enter and navigate the dryer's diagnostic test mode.

Electrical Supply Test

Tests for 120V AC electrical supply to the dryer's controller.

Thermistor Test

Procedure to measure thermistor resistance for accurate temperature sensing.

Motor Test

Steps to test the motor's operation and resistance values.

Moisture Sensor Test

Functional and mechanical tests for the moisture sensing system.

Door Switch Test

Functional and mechanical tests for the dryer's door switch.

Heater Switch Test

Test procedure for the heater switch in electric dryer models.

Gas Valve Test

Procedure to test gas valve operation and voltage for gas dryers.

CHANGE GAS SETTING (NATURAL GAS, PROPANE GAS)

Valve Setting Adjustment

Instructions for adjusting gas valve settings for natural or propane gas.

Orifice Replacement

Steps for changing the gas orifice for propane conversion.

DISASSEMBLY INSTRUCTIONS

Top Plate Removal

Steps to safely remove the dryer's top plate for access.

Control Panel Assembly Removal

Procedures for disassembling and removing the control panel.

Cover Cabinet Removal

Instructions for removing the dryer's outer cabinet panels.

Drum Assembly Disassembly

Steps for disassembling the drum and related components.

Filter and Blower Housing Removal

Procedures for removing the filter and blower housing assemblies.

Air Duct and Roller Removal

Instructions for removing air duct components and drum rollers.

EXPLODED VIEW

Control Panel Exploded View

Illustrated breakdown of the control panel and plate assembly components.

Cabinet and Door Exploded View (Electric)

Illustrated parts breakdown for the electric dryer's cabinet and door assembly.

Cabinet and Door Exploded View (Gas)

Illustrated parts breakdown for the gas dryer's cabinet and door assembly.

Drum and Motor Exploded View (Electric)

Illustrated parts breakdown for the electric dryer's drum and motor assembly.

Drum and Motor Exploded View (Gas)

Illustrated parts breakdown for the gas dryer's drum and motor assembly.

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LG DLG3171W User Manual

Table of Contents