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[LG Air Conditioner Function] Why is the humidity not dropping in

If the air conditioner's capacity is significantly larger than the room size, the room temperature can drop quickly. This causes the unit to enter [Fan Mode] more often. This can make this symptom occur more frequently. This is normal operation and not a product issue. You can use the air conditioner with confidence.

[LG Air Conditioner Function] Why is the humidity not dropping in Dehumidification mode? LG USA help image
TroubleshootingAir Conditioners

What to Check First

  1. Example 1) For a 120 m² home, a unit with 60 m² coverage is recommended.
  2. Example 2) For a 130 m² home, a unit with 65 m² coverage is recommended.
  3. If the air conditioner's capacity is significantly larger than the room size, the room temperature can drop quickly. This causes the unit to enter [Fan Mode] more often. This can make this symptom occur more frequently. This is normal operation and not a product issue. You can use the air conditioner with confidence.
  4. The recommended capacity for a floor-standing air conditioner is approximately half of the home's total floor area. Since these units are typically installed in the living room (the largest open space), the coverage area is calculated based on this ratio.
  5. If the outdoor unit compressor frequently slows down or stops, dehumidification may not be effective, and the room may feel humid even when the air conditioner is running. If the humidity does not decrease or the room feels humid during use, lower the target temperature or set the fan speed to [High].
  6. This guide was created for all models, so the images or content may be different from your product.

Why This Can Happen

Symptoms can have more than one cause, and the correct steps depend on the exact model, installation and operating conditions. Use the checks above to narrow the issue before service.

Safety and Model-Specific Guidance

Stop troubleshooting if you notice burning, electrical damage, unsafe heat, gas odor, refrigerant concerns, or water near electrical components. Follow the official LG USA instructions for your exact model.

Frequently Asked Questions

What should I check first for [LG Air Conditioner Function] Why is the humidity not dropping in Dehumidification mode??

Example 1) For a 120 m² home, a unit with 60 m² coverage is recommended.

When should I stop troubleshooting and contact LG?

Stop if the product shows signs of electrical damage, burning, leaking near electrical components, or if the recommended checks do not resolve the issue. Use LG USA support for model-specific service guidance.

Does this guidance apply to every LG model?

Not always. Controls, error codes and service steps can differ by model. Confirm the exact model number and follow the linked LG USA article for model-specific instructions.

Related LG Products

These model pages are linked because the stored category or exact model matches this Help Library topic.

Buying Guides for This Product Type

Performance & capacityAir Conditioner Performance, Capacity & Everyday-Use GuideHousehold use caseAir Conditioner Family & High-Use Household GuideEfficiency & running costAir Conditioner Efficiency, Energy & Running-Cost GuideFeatures & valueAir Conditioner Features Worth Paying For — Value Guide

Related Help Articles

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Read the Official LG Guide