Error code
live-filter-lamp-3-blinks Filter-cleaning reminder
How it shows on the unit 3 blinks, repeating at 21-second intervals in the live indicator
Applies to 3 models
ASYG09KMCEN, ASYG12KMCEN, ASYG14KMCEN
What this means
The air-filter indicator is requesting filter cleaning; this is a maintenance reminder, not a system fault.
What you can check yourself
- Switch off the unit before cleaning.
- Clean the air filters.
- Reset the filter indicator by pressing the indoor-unit manual/auto button for 2 seconds or less.
Still not resolved? Contact a qualified installer or servicer.
See the official Fujitsu manualA deep link to the manufacturer's own PDF for full technical detail. We link to manuals, we never host them.
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