LG Dryer D90 Blockage

Modern appliances like the LG Dryer D90 come with advanced features designed to make our lives more convenient. However, like any other machinery, they can encounter issues from time to time. One common problem that users face with their LG Dryer is the “D90 Blockage” error. In this article, we’ll delve into what this error means, its possible causes, and how to troubleshoot and resolve it.

What is the LG Dryer D90 Blockage Error?


Several factors can lead to the D90 Blockage error in an LG Dryer:

1. Lint Buildup:

Lint is a natural byproduct of drying clothes. Over time, lint can accumulate in the lint filter, exhaust ducts, and vents. This buildup restricts airflow, triggering the D90 error.

2. Blocked Ventilation:

Sometimes, the ducts or vents leading outside your home may become blocked by debris, bird nests, or even animal infestations. Any obstruction in the ventilation system can lead to poor dryer performance and the D90 error.

3. Installation Issues:

Improper installation of the dryer or its exhaust system can result in kinks or bends in the ductwork, which can obstruct the airflow and trigger the D90 Blockage error.

Troubleshooting and Resolving the D90 Blockage Error

Here are steps you can take to troubleshoot and resolve the LG Dryer D90 Blockage error:

1. Clean the Lint Filter:

Start by removing and cleaning the lint filter after every drying cycle. A clean filter allows for better airflow and reduces the chances of lint buildup.

2. Check the Ventilation System:

Inspect the entire ventilation system, including the exhaust ducts and vents leading outside. Remove any obstructions, such as lint, debris, or nests, that may be blocking the airflow. Ensure that the ducts are not kinked or bent.

3. Clean the Exhaust Duct:

If you find significant lint buildup in the exhaust ducts, you may need to disconnect them and clean them thoroughly. Use a vacuum cleaner with a hose attachment or a specialized duct cleaning brush to remove the lint.

4. Verify Installation:

Check that your dryer and its exhaust system are correctly installed. Make sure there are no sharp bends or unnecessary extensions in the ductwork. A straight and short duct system is ideal for efficient dryer performance.

5. Test the Dryer:

After performing the above steps, turn on your LG Dryer and run a test cycle. Ensure that the error no longer appears and that your dryer is operating efficiently.

Preventing Future D90 Blockage Errors

To avoid encountering the D90 Blockage error in the future, consider implementing these preventive measures:

  • Clean the lint filter after every drying cycle.
  • Inspect the venting system regularly, at least once a year, for any obstructions.
  • Ensure proper installation and airflow by adhering to LG’s installation guidelines.
  • Use a rigid, smooth-walled metal duct for your dryer’s exhaust, as it is less likely to accumulate lint.

Professional Maintenance and Additional Tips

If you’re uncomfortable or unsure about performing maintenance on your LG Dryer, it’s advisable to seek professional assistance. A certified technician can not only diagnose and resolve the D90 Blockage error but also conduct a thorough inspection to ensure your dryer is in optimal working condition.

Here are some additional tips to keep your LG Dryer running smoothly:

1. Regular Cleaning:

Aside from the lint filter, periodically clean the drum and the interior of the dryer to remove any residual lint or fabric softener residue. A damp cloth or a vacuum cleaner with a brush attachment can be useful for this.

2. Maintain Proper Ventilation:

Ensure that the dryer has adequate ventilation. Avoid overloading it with too many clothes, as this can increase lint production. Use a rigid, smooth-walled metal duct for your dryer’s exhaust, as it is less prone to lint buildup.

3. Use the Right Detergents:

Using too much fabric softener or detergent can lead to excess residue buildup in the drum and lint filter. Follow the manufacturer’s recommendations for detergent usage.

4. Keep the Area Around the Dryer Clear:

Make sure there are no obstructions near the dryer that could impede airflow. Keep the area around the dryer free from dust, lint, and clutter.

5. Regularly Inspect Hoses and Connections:

If your dryer has a water connection (for steam drying), inspect the hoses and connections for any leaks or damage. Replace any worn-out components promptly.

6. Educate Users:

If you share your home with others, make sure everyone using the dryer understands the importance of cleaning the lint filter after each use and not overloading the dryer.

Troubleshooting Steps

StepDescriptionPotential CauseSolutionAdditional Notes
1No heat in dryerBlocked lint filterClean the lint filterRegularly clean lint filter
2Clothes take too long to dryBlocked vent systemCheck and clean the ventEnsure proper venting
3Dryer overheatingBlocked exhaust ductClear the ductPrevent fire hazards
4Error code D90 displayedRestricted airflowCheck for blockagesInvestigate the issue
5Unusual noisesDebris in the blower wheelRemove debrisPrevent damage

Common Blockage Locations

Lint FilterAccumulated lintSlow drying, error codesRegular cleaningClean after each cycle
Vent HoseClogged with lintOverheating, long drying timesClear obstructionsRegular maintenance
Exhaust DuctObstructed by debrisError codes, overheatingClean duct thoroughlyPeriodic checks
Blower WheelDebris buildupStrange noises, poor airflowRemove debrisRegular inspection
Vent CapCovered in lintReduced airflowClean vent capRoutine maintenance

 LG Dryer D90 Error Codes

Error CodeDescriptionMeaningActionNotes
D90Blockage detectedInsufficient airflowCheck for obstructionsCan lead to overheating
D80Ventilation issueRestricted exhaustInspect and clear ventAddress ventilation problems
D95Restricted airflowPoor ventingInvestigate blockagesEnsure proper vent installation
D80/D90Combination codeMultiple issuesCheck all componentsAddress each problem
No error codeNormal operationRegular maintenance

Symptoms of LG Dryer D90 Blockage

SymptomDescriptionPossible CausesActionNotes
Clothes not dryingDamp or cool clothesLint filter, vent blockageClean filter, check ventEnsure proper venting
Dryer overheatingExcessive heatExhaust duct blockageClear duct, check airflowPrevent fire hazards
Error code D90Displayed on the panelInsufficient airflowInvestigate blockagesAddress the issue
Unusual noisesGrinding, rattlingDebris in blower wheelRemove debrisPrevent damage
Long drying timesHours to dry clothesVentilation problemsInspect vent systemOptimize ventilation

Maintenance Schedule for LG Dryer

Maintenance TaskFrequencyDescriptionTools NeededNotes
Lint filter cleaningAfter every cycleRemove lint buildupNoneEssential for proper operation
Vent system checkAnnuallyInspect vent hose and ductScrewdriver, flashlightPrevent blockages
Exhaust duct cleaningEvery 2 yearsClean the entire ductVent cleaning kitPrevent overheating
Blower wheel inspectionEvery 2 yearsCheck for debrisScrewdriverEnsure smooth operation
Vent cap cleaningEvery 6 monthsClear lint from capBrush or vacuumMaintain proper airflow


The LG Dryer D90 Blockage error is a common issue that can disrupt the efficient operation of your dryer. However, with regular maintenance, proper installation, and adherence to preventive measures, you can reduce the likelihood of encountering this error and keep your dryer in top working condition. If the error persists or if you’re uncomfortable with troubleshooting, don’t hesitate to contact a professional technician who can diagnose and resolve the issue, ensuring the longevity and efficiency of your LG Dryer.

Leave a Comment