What to Check First
- On a clear day, open the windows and run the air conditioner in [Fan Mode]. Avoid doing this on dusty or humid days, as dust or moisture may enter the room and the unit.
- A chemical or plastic smell from a newly installed LG ceiling-mounted air conditioner is normal for a new product. It is similar to the smell of a new car or new furniture. This is temporary and does not indicate a defect. Open the windows and run the air conditioner in [Fan Mode] to help clear the smell. The smell will naturally fade within 1–2 weeks.
- When you first turn on a new air conditioner, the internal parts may give off a slight smell. This is normal and comes from the manufacturing process. It will gradually fade with use.
- Ventilate the room well before turning on the air conditioner.
- Turn on your LG ceiling-mounted air conditioner and set it to [Fan Mode]. Do not use [Cooling Mode].
- Run the air conditioner in [Fan Mode] for about 30 minutes with the windows open.
- Repeat this process regularly during the first few days.
- If these steps don’t resolve the issue, visit the LG Customer Support website for further assistance. You can explore available support options, such as chat support or a technician visit, depending on your region. • Service fees may apply for technician visits if the product is out of warranty. • This guide is based on standard models. Actual settings and menus may vary by model and region. • This content was partially edited using AI for clarity.
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 Why Your Newly Installed Ceiling-Mounted Air Conditioner Smells Like Chemicals?
On a clear day, open the windows and run the air conditioner in [Fan Mode]. Avoid doing this on dusty or humid days, as dust or moisture may enter the room and the unit.
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.
LG AXRGALA01 — Thru-the-Wall Air Conditioner Architectural Grille
Home Appliances · Top Appliance Deals
LG AXSVA4 — Thru-the-Wall Air Conditioner Wall Sleeve with Stamped Aluminum Grille
Get information on the LG AXSVA4. Find pictures, reviews, and technical specifications for this LG air conditioner grille.
LG LP0525WFR — 5,100 BTU (SACC) / 9,000 BTU (ASHRAE) Portable Air Conditioner | Cools Up To 150 sq. ft.
Home Appliances · Top Appliance Deals
LG LP0623WSR — 6,000 BTU (SACC) / 9,700 (ASHRAE) Portable Air Conditioner | Up To 250 sq. ft.
Discover the 6,000 BTU Portable Air Conditioner that features 6,000 BTU and 3-in-1 Operation. Shop LP0623WSR from LG USA.
LG LP0723WSR — 7,000 BTU (SACC) / 10,500 BTU (ASHRAE) Portable Air Conditioner | Cools Up To 300 sq. ft.
Discover the 7,000 BTU Portable Air Conditioner that features 7,000 BTU and 3-in-1 Operation. Shop LP0723WSR from LG USA.