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[LG Air Conditioner Heating] No hot wind but defrosting sign appears

1. During heating operation, if the outdoor temperature is low and the humidity is high, then there will be frosts on the evaporator of the outdoor unit.. 2. If frosts are formed, then the cooling performance will be degraded.. In this case, the product will make its own decision to remove.

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RepairAir Conditioners

What to Check First

Open the official LG USA article for the latest model-specific checks.

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 Heating] No hot wind but defrosting sign appears?

1. During heating operation, if the outdoor temperature is low and the humidity is high, then there will be frosts on the evaporator of the outdoor unit.. 2. If frosts are formed, then the cooling performance will be degraded.. In this case, the product will make its own decision to remove.

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

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

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Read the Official LG Guide