What to Check First
- 1. For safety, turn off [Main Power Switch] before cleaning the filter.
- 2. Pull the door lock on the front grill to open the front grill, and remove the filter.
- 3. Clean the separated filter with vacuum cleaner or soft brush. If it is severely contaminated, wash it in water using neutral detergent, but do not use hot water over 72℉.
- 4. When drying the filter, dry it thoroughly in the shade, away from fire or direct sunlight. (Moisture may cause failure.).
- 5. Insert the filter, and push the door lock into the front grill to securer the grill. If the filter is covered with dust, cooling and heating performance may be degraded and may result in higher electric bills. Clean the filter [once every two weeks].
- 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
Frequently Asked Questions
What should I check first for [LG Air Conditioner Cleaning] [Rectangular Model] How can I clean the filter??
1. For safety, turn off [Main Power Switch] before cleaning the filter.
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.