Whirlpool Duet hybrid dryer Error Code LF: Meaning & How to Fix It

By the ErrorCodePro Editorial Team · Last reviewed October 20, 2026

Whirlpool Duet hybrid dryer error code LF means: Secondary lint filter removed. [1] Keep using it? Only if the owner checks below clear the code; if it returns, stop and book a repair. Start with the owner checks below, beginning with: write down the code and model number.

Source: Whirlpool Duet hybrid dryer error-code chart, via Sears PartsDirect [1].

Quick facts

Code	LF
Also shown as	None listed by the manufacturer
Brand / appliance	Whirlpool Duet hybrid dryer
System	Control / electronics
Meaning (service chart)	Secondary lint filter removed. [1]
Keep using it?	Only if the owner checks below clear the code; if it returns, stop and book a repair
DIY-safe?	Owner checks only (listed below)
Support	Whirlpool: 1-866-698-2538
Source document	Whirlpool Duet hybrid dryer error-code chart (via Sears PartsDirect)

On this page: Meaning · Steps · Parts · When to call a technician · Related codes · FAQ

What error code LF means on a Whirlpool Duet hybrid dryer

Secondary lint filter removed. [1]

This is a control / electronics code. Codes and wording can vary by model, so check your owner's manual for your model number.

How to fix Whirlpool Duet hybrid dryer error code LF (safe owner checks)

Safety first: disconnect power before you remove any panel or reach into the sump or drum. Do not touch wiring, the control board or the motor. If you see water near electrical parts, stop and call a technician. These steps are based on the Whirlpool Duet hybrid dryer error-code chart (via Sears PartsDirect) [1], rewritten for clarity.

Write down the code and model number. Note exactly what the display shows (LF) and copy the full model number from the rating label, so you can confirm this chart applies to your duet hybrid dryer and order the right parts.
Clean the filter. Install the secondary lint filter if removed.
Do a power reset. Unplug the appliance or switch off its breaker for one minute, then restore power and try again. If the code clears and stays away, it may have been a one-off fault.
Test and decide. Run a short cycle or restart and watch the display. If LF comes back after these checks, stop using the dryer for this function and call a technician, because the remaining causes need meters or part replacement.

The first and last steps (and the power reset) are general owner checks added by ErrorCodePro; the rest follow the Whirlpool Duet hybrid dryer error-code chart published by Sears PartsDirect, rewritten for safe owner use.

Parts that may be involved

Exact parts depend on your model number. This page lists part types only, never part numbers.

Secondary lint filter reed switch
Wire harness Water filters Find the perfect fit for your refrigerator. Try our water filter finder Most common symptoms to help you fix your dryers Choose a symptom to see related dryer repairs. View all Why won't my dryer heat? Main causes: bad gas valve coils
Broken heating element
Tripped safety thermostat
Fuse
Bad operating thermostat
C... Read more Why isn't my dryer getting my laundry dry? Main causes: clogged exhaust system
Heating system failure

When to call a technician

Unplug the dryer and check the wiring connections on the secondary lint filter reed switch.
Reconnect any loose wires.
Technician: replace the wire harness if damaged.
Technician: replace the secondary lint filter reed switch if damaged.
Anything involving wiring, the control board, the motor or the water valve electrics
The appliance is under warranty: contact Whirlpool: 1-866-698-2538 first

Frequently asked questions

What does error code LF mean on a Whirlpool Duet hybrid dryer?

The Whirlpool Duet hybrid dryer error-code chart lists LF as follows: Secondary lint filter removed.

Is it safe to keep using the Duet hybrid dryer with LF?

Only if the owner checks below clear the code; if it returns, stop and book a repair.

Can I fix Whirlpool Duet hybrid dryer error LF myself?

Only with the owner checks on this page, starting with: write down the code and model number. If it persists, call a technician or Whirlpool: 1-866-698-2538.

Sources

Sears PartsDirect: Whirlpool Duet hybrid dryer error-code chart (third-party copy of manufacturer service data)

Last reviewed: October 20, 2026. ErrorCodePro is not affiliated with Whirlpool.