Error code · Air Purifier

LG Air Purifier Filter Replacement Lamp: Use-Time Reminder

Low risk · DIY check OK

Code: Filter replacement lamp
Appliance: Air Purifier
Brand: LG
Warranty: 30-day workmanship

What Filter replacement lamp means

The filter replacement lamp lights on LG PuriCare air purifiers, including the 360 Alpha, AeroFurniture, AeroTower, and 360 Hit, based on cumulative use time. It is a reminder and not an error. The owner sees the lamp or a notification and wonders whether the purifier has broken. Resetting the reminder after changing the filter differs by model, and on the 360 Alpha it is done through Settings, then Filter Capacity, then Reset Filter. Check your model for its own method.

Common causes of Filter replacement lamp

Cumulative use time reached the replacement point
Reminder not reset after a filter change

✓ One safe check you can try

1. Replace the filter if it is due, using the filter made for your purifier. 2. On the 360 Alpha, open Settings, then Filter Capacity, then Reset Filter. 3. On other PuriCare models, use the reset method for that model. 4. Confirm that the lamp goes out after the reset.

! Why to stop there

If the lamp stays on after a correct reset, we test the filter counter and the display board.
If the lamp lights far too early, we check how the counter stores its data.
Whatever we find, you hear it in plain words before a written price is given.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Air Purifier codes

Check filterLG Air Purifier Message Check Filter: Filter Sensor Alert

Filter replacement lampFilter replacement lamp questions

Does the lamp mean the purifier is broken?

No. It lights by cumulative use time as a reminder to change the filter. It is not an error, and the purifier keeps working while it is on.

How do I reset it on the 360 Alpha?

On that model, go to Settings, then Filter Capacity, then Reset Filter. The other PuriCare models use different steps, so follow the reset method written for your own model.

Should I reset before changing the filter?

Change the filter first, then reset the reminder. Resetting alone only hides the lamp while the old filter keeps working at reduced capacity, which defeats the purpose of the reminder.

Book a visit

Still unsure about Filter replacement lamp?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 597-5662