ErrorCodeDoctor
LG · Dryer

LG Dryer Check Filter error code

Difficulty: Easy · Cost: $0 · Duration: 1m

Check Filter is not an error code. It is a routine reminder that appears before each drying cycle to prompt you to clean the lint filter. A clean lint filter ensures proper airflow and drying performance and reduces the risk of longer drying times and overheating. The indicator will turn off automatically once you select a cycle or press START/PAUSE — no other action is required to clear it.

Common causes

  • Automatic reminder activated before a new drying cycle as a normal maintenance prompt
  • Designed to encourage regular lint filter cleaning before each use

How to fix it

  1. 1

    Remove the lint filter and clean off any accumulated lint before starting

  2. 2

    Reinsert the lint filter firmly back into its slot

  3. 3

    Turn the cycle knob to select your desired program or press START/PAUSE — the Check Filter indicator will turn off automatically

  4. 4

    No further action is needed — this is a normal reminder not an error

Related LG Dryer error codes

1

d75

The exhaust airflow is 75% restricted — the vent system needs cleaning

easy
2

d80

The exhaust airflow is 80% restricted — the vent system needs cleaning or inspection

medium
3

d90

The exhaust airflow is 90% restricted — urgent cleaning required

medium
4

d95

The exhaust airflow is 95% restricted — stop using the dryer immediately

hard

Check Filter error — frequently asked questions

What does the Check Filter error mean on a LG dryer?

Reminder to clean the lint filter before starting a cycle — not an error

What causes the Check Filter error?

The Check Filter error is usually caused by: Automatic reminder activated before a new drying cycle as a normal maintenance prompt; Designed to encourage regular lint filter cleaning before each use.

Can I fix the Check Filter error myself?

Yes — this is rated an easy fix that most people can do themselves, typically in 1m.

How much does it cost to fix the Check Filter error?

Fixing the Check Filter error on a LG dryer typically costs $0, depending on parts and whether you do it yourself or hire a technician.

Is it safe to keep using my dryer with the Check Filter error?

In most cases yes, but it's best to address the Check Filter error soon — see the fix steps below to resolve it.