LG dryer error codes D80 D85 D90 and D95

In this guide, we’ll explain the LG dryer error codes D80 D85 D90 and D95, what causes them, and how to restore proper airflow to your dryer.

These codes are generated by LG’s Flow Sense™ system, which monitors exhaust airflow and alerts you when a restriction is detected in the venting system. A blocked dryer vent can significantly increase drying times, waste energy, and create a serious fire hazard.

When one of these codes appears, the dryer may stop operating until the airflow problem is corrected.

What Do LG Dryer Error Codes D80, D85, D90, and D95 Mean?

The D80, D85, D90, and D95 codes indicate increasing levels of airflow restriction within the dryer’s exhaust system.

Error Code	Estimated Vent Restriction
D80	Approximately 80% blocked
D85	Approximately 85% blocked
D90	Approximately 90% blocked
D95	Approximately 95% blocked

The higher the number, the more severe the blockage.

LG dryers use the Flow Sense feature to help prevent overheating and reduce the risk of lint-related fires.

Common Causes of LG Dryer Airflow Errors

Lint Buildup

Lint accumulation inside the vent system is the most common cause of restricted airflow.

Blocked Exterior Vent

The outside vent hood may become clogged with lint, dirt, leaves, or debris.

Bird or Rodent Nests

Animals frequently build nests inside exterior dryer vents, creating severe blockages.

Kinked or Crushed Vent Hose

Flexible vent hoses can become pinched behind the dryer, restricting airflow.

Improper Vent Material

Plastic and foil-style vent hoses collect lint easily and should be replaced with rigid or semi-rigid metal ducting.

Excessive Vent Length

Long vent runs with multiple elbows create back pressure that reduces airflow efficiency.

Stuck Vent Damper

The exterior vent flap should open fully during operation. If it sticks closed, airflow becomes restricted.

How to Fix LG Dryer D80, D85, D90, and D95 Error Codes

Step 1: Clean the Lint Filter

Remove and clean the lint screen before every load.

If fabric softener sheets are used regularly, wash the screen with warm water and mild detergent to remove residue that can restrict airflow.

Step 2: Inspect the Vent Hose

Unplug the dryer and pull it away from the wall.

Check the vent hose for:

• Kinks
• Crushing
• Excess lint buildup
• Loose connections

Clean the entire hose thoroughly before reconnecting it.

Step 3: Check the Exterior Vent

Locate the outside dryer vent.

Inspect for:

• Lint accumulation
• Dirt and debris
• Bird nests
• Stuck vent flaps

Clean the vent cap and ensure the damper opens freely.

Step 4: Clean the Entire Vent System

Blockages often occur deeper inside the home’s ductwork.

Use a dryer vent cleaning brush or vacuum attachment to remove lint from the entire vent run.

For long or difficult duct systems, professional dryer vent cleaning may be necessary.

Step 5: Verify Proper Duct Installation

For best performance:

• Use rigid or semi-rigid metal ducting
• Keep vent runs as short as possible
• Minimize the number of elbows and turns
• Avoid foil or plastic vent hoses

Every 90-degree bend reduces airflow and increases drying time.

Step 6: Test Airflow

After cleaning:

1. Reconnect the vent.
2. Run the dryer on an air fluff or no heat cycle.
3. Check the airflow at the exterior vent.

Strong airflow indicates the restriction has been removed.

Why You Should Not Ignore D80, D85, D90, or D95 Errors

Ignoring airflow restriction warnings can lead to:

• Longer drying times
• Increased energy consumption
• Premature heating element failure
• Overheating
• Excessive lint accumulation
• Increased risk of dryer fires

These codes are safety warnings and should be addressed promptly.

How to Clear the Error Code

Once the blockage has been removed:

1. Restore power to the dryer.
2. Run a normal drying cycle.
3. The error code should clear automatically.

If the code returns, additional vent cleaning or inspection may be required.

Can You Disable LG Flow Sense?

Some LG dryer models allow the Flow Sense notification to be turned on or off using specific button combinations.

How to Clear the D80, D85, D90, and D95 Notifications (Disable Flow Sense)

In some cases, LG dryers may continue displaying D80, D85, D90, or D95 notifications even after the vent system has been thoroughly cleaned and airflow has been restored. This can occur when the Flow Sense™ monitoring system detects airflow conditions that it interprets as a restriction.

If you have already inspected and cleaned the lint filter, vent hose, exterior vent cap, and house exhaust duct, you may choose to disable the Flow Sense notification on compatible models.

Important: Flow Sense is a safety feature designed to alert you to potentially dangerous vent restrictions. Only disable it after confirming that the entire exhaust system is clear and operating properly.

How to Turn Off Flow Sense on an LG Dryer

1. Turn the dryer on.
2. Press and hold the appropriate button combination for your model for approximately 3 seconds.
3. When the display shows OFF, the Flow Sense notification has been disabled.
4. Repeat the same procedure to re-enable the feature. The display will show ON.

LG Dryer Flow Sense Button Combinations

LG Dryer Models	Buttons to Press and Hold
DLEX89 Series, DLGX89 Series	TurboSteam + Less Time
DLE34, DLG34, DLE36, DLG36, DLE70, DLG70, DLE71, DLG71 Series	Wrinkle Care + Time Dry
DLE30, DLG30, DLE33, DLE35, DLG35, DLEX37, DLGX37, DLEX38, DLGX38, DLEX39, DLGX39, DLEX40, DLGX40, DLEX42, DLGX42, DLEX43, DLGX43, DLEX45, DLGX45, DLEX72, DLE73, DLG73, DLEX73, DLEX78, DLGX78, DLEX79, DLGX79 Series	Time Dry + Signal

Should You Disable Flow Sense?

Disabling Flow Sense will stop the dryer from displaying D80, D85, D90, and D95 notifications, but it will also remove an important airflow safety warning. For this reason, Flow Sense should only be disabled after verifying that the dryer vent system is completely clean and free of restrictions.

Technician Tip

If you’ve cleaned the lint filter and vent hose but continue receiving D80, D85, D90, or D95 errors, disconnect the vent from the back of the dryer and run a short test cycle. If the error disappears, the restriction is located within the home’s exhaust duct rather than inside the dryer itself.

Final Thought

The LG dryer D80 D85 D90 and D95 error codes indicate that the appliance has detected restricted airflow in the exhaust system. In most cases, the problem is caused by lint buildup, blocked vent caps, crushed ductwork, or excessively long vent runs. Promptly cleaning and inspecting the entire vent system will restore proper airflow, improve drying performance, reduce energy consumption, and help protect your home from potential fire hazards.