LG DLEX3700V/00 dryer Parts

On an LG dryer like model DLEX3700V, the model number is printed on the appliance’s rating label. We most often see that label inside the door opening on the cabinet frame; it can also be on the back of the dryer near the top. For exact label locations and diagrams, use the DLEX3700V owner's manual.

Common places to check first

• Open the dryer door and look along the door opening (cabinet frame).
• Check the back panel near the top edge.
• Look around the door opening area where the latch and hinges mount.
• If the label is hard to read, use a flashlight and take a photo to zoom in.

What the label information is used for

Having the correct model number helps us match the right LG dryer parts and troubleshooting steps.

Label item	What it helps with	Example of when you need it
Model number	Correct part fit and diagrams	Ordering a drum belt or thermostat
Serial number	Service history and support	Scheduling service or warranty questions
Electrical ratings	Installation and power checks	Verifying outlet and cord requirements

Why it matters

LG often uses similar-looking dryers across a series, and small model differences can change which parts fit (for example, a belt, thermistor, or heating element). Using the exact model number from the rating label prevents ordering the wrong replacement part.

Last updated: February 2026

Most error codes on our LG dryer model DLEX3700V clear after a power reset: turn the dryer off, unplug it (or switch the breaker off) for about 1 to 3 minutes, then restore power and try a cycle again. If the code is CL (Control Lock), you must turn Control Lock off at the controls; power cycling will not reset it.

Quick reset steps (start here)

• Press Power to turn the dryer off.
• Unplug the dryer (or turn the breaker off) for 1 to 3 minutes.
• Restore power.
• Press Power, then start a cycle.
• If the same code returns, use the code-specific steps below.

Code-specific resets for DLEX3700V

CL (Control Lock)

Control Lock is designed to stay on even if you turn the power off.

• Turn the dryer on.
• Press and hold Wrinkle Care for 3 seconds to toggle Control Lock off.
• Confirm the display returns to normal time remaining.

tE1 or tE2 (temperature sensor error)

• Turn the dryer off.
• Do not continue running cycles; schedule service after confirming the code.

Hs (humidity sensor error)

• Turn the dryer off.
• If the code returns after a power reset, service is needed.

PF, PS, or NP (power issue)

• Reset the house breaker (or replace the fuse with the correct rating).
• Confirm the power cord connection is correct for an electric dryer.

Airflow-related codes and long dry times

Restricted venting can trigger airflow problems and also cause long dry times.

• Clean the lint filter; wash it if it is coated with fabric softener residue.
• Check the vent path for crushed ducting, lint buildup, or too many elbows.
• Keep the exhaust run as short and straight as possible.

What you see	What it usually means	What to do first
CL	Controls locked	Hold Wrinkle Care 3 seconds
PF/PS/NP	Power supply problem	Reset breaker, verify cord/voltage
tE1/tE2	Temperature sensor problem	Power off; service needed
Hs	Humidity sensor problem	Power off; service needed

Why it matters

Resetting the code the right way prevents repeat shutdowns and helps protect key components like the heater and sensors. It also helps you separate a simple setting (like Control Lock) from a real electrical, airflow, or sensor problem.

For the full list of codes and control features for this model, use the DLEX3700V owner’s manual. For additional LG code explanations, see LG dryer error codes.

Last updated: February 2026

Most LG dryers, including the LG DLEX3700V, typically last 10 to 15 years with normal household use and routine maintenance (lint removal, proper venting, and avoiding overloads). Consistent airflow and timely repairs are the biggest factors that keep a dryer running longer.

What affects dryer lifespan the most

• Vent airflow: A restricted vent makes the dryer run hotter and longer, which shortens component life.
• Lint control: Cleaning the lint screen every load reduces heat stress and improves drying.
• Load size: Overloading strains the drum support system and drive components.
• Heat management: Repeated overheating can damage thermostats and sensors.
• Wear parts: Belts, rollers, and idler pulleys wear over time and are normal maintenance items.

Common wear parts that can extend life when replaced

If the dryer runs but squeals, thumps, or stops tumbling, these parts are common fixes on this platform:

• Dryer drum belt 4400EL2001F
• Dryer drum support roller assembly 4581EL2002L
• Dryer idler pulley 4560EL3001A

Quick maintenance checklist (best ROI)

• Clean the lint screen and lint chute area regularly.
• Inspect and clean the vent duct; keep it short, smooth, and not crushed.
• Confirm strong airflow at the outside vent hood.
• Keep the dryer level to reduce drum and roller wear.
• Use the correct cycle; avoid running high heat longer than needed.

Typical lifespan expectations (what to plan for)

Usage pattern	Typical lifespan	What usually fails first
Light (few loads/week)	12 to 15 years	Belt, rollers, idler pulley
Average (most households)	10 to 15 years	Thermostats, sensors, drive parts
Heavy (daily loads)	8 to 12 years	Drive system wear, heat-related parts

Why it matters

A dryer that takes longer to dry or runs unusually hot often has an airflow or maintenance issue. Fixing that early reduces stress on heating and safety controls and helps your LG DLEX3700V reach its full service life. For model-specific care and operating guidance, follow the DLEX3700V owner’s manual.

Last updated: February 2026

On the LG DLEX3700V, water on the floor most often comes from the steam water-supply hookup (hose, Y-connector, or rubber seal) or normal steam condensation that drips briefly when a Steam cycle starts. Start by checking every cold-water connection and seal, then confirm the leak happens only during Steam use. See the DLEX3700V user manual for the correct water inlet hose connection and leak-check steps.

Quick checks that fix most leaks

• Shut off the cold-water faucet, then dry everything so you can spot fresh drips.
• Inspect the water supply hose and fittings for cracks, cross-threading, or a loose coupling.
• Check the rubber washer seals inside each hose end; reseat or replace if flattened or torn.
• Make sure the hose is not pinched, kinked, crushed, or stretched behind the dryer.
• Run a Steam cycle and watch the inlet connections and hose path for the first 2 to 3 minutes.

What’s normal vs. what needs repair

Steam dryers can drip briefly at the start of a Steam cycle due to condensation; that should stop quickly. Use this guide to separate normal behavior from a true leak:

Symptom	Most likely cause	What to do next
Drips only right when Steam starts	Steam condensation	Monitor; it should stop shortly
Steady drip at the back near the faucet	Loose fitting or bad rubber seal	Reseat seal, tighten by hand, then snug slightly
Water under dryer even when not using Steam	Hose seep, valve leak, or external plumbing issue	Inspect hose ends and faucet connection; replace hose if worn
Leak appears after moving dryer	Hose kinked or pinched	Re-route hose with gentle bends

Installation details that commonly cause leaks

We see these issues most often on steam hookups:

• Reusing an old hose instead of installing a new water supply hose
• Overtightening or cross-threading the hose fittings (damages couplings)
• Skipping the “flush several gallons” step before connecting (debris can affect sealing)
• Water pressure outside the typical 20 to 120 psi range

Why it matters

Even a small steam-hose seep can lead to floor damage and can also affect Steam performance. Fixing the connection and seals early prevents repeat leaks and helps the dryer run efficiently.

Last updated: February 2026