Error code
live-filter-lamp-blink Filter-cleaning reminder
How it shows on the unit Operation lamp blinking when operation starts and stops; live filter-reminder indication
Applies to 39 models
MSZ-EF22VG2W, MSZ-EF25VG2W, MSZ-EF35VG2W, MSZ-EF42VG2W, MSZ-EF50VG2W, MSZ-EF22VG2B, MSZ-EF25VG2B, MSZ-EF35VG2B, MSZ-EF42VG2B, MSZ-EF50VG2B, MSZ-EF22VG2S, MSZ-EF25VG2S, MSZ-EF35VG2S, MSZ-EF42VG2S, MSZ-EF50VG2S, MSZ-EF18VGK2W, MSZ-EF22VGK2W, MSZ-EF25VGK2W, MSZ-EF35VGK2W, MSZ-EF42VGK2W, MSZ-EF50VGK2W, MSZ-EF18VGK2B, MSZ-EF22VGK2B, MSZ-EF25VGK2B, MSZ-EF35VGK2B, MSZ-EF42VGK2B, MSZ-EF50VGK2B, MSZ-EF18VGK2S, MSZ-EF22VGK2S, MSZ-EF25VGK2S, MSZ-EF35VGK2S, MSZ-EF42VGK2S, MSZ-EF50VGK2S, MUZ-EF25VG2, MUZ-EF35VG2, MUZ-EF42VG2, MUZ-EF50VG2, MUZ-EF25VGH2, MUZ-EF35VGH2
What this means
The operation lamp indicates that the air filter should be cleaned; this is not necessarily a system fault.
What you can check yourself
- Switch off power before cleaning.
- Vacuum or rinse the air filter with water and let it dry completely in the shade.
- Reset the indication with the remote control after cleaning.
Still not resolved? Contact a qualified installer or servicer.
See the Mitsubishi Electric manual (hosted by an authorized distributor)Hosted by an authorized distributor rather than by the manufacturer. We link to manuals, we never host them.
Using Claude Code or Meta Muse? Connect HeatPump AI and ask it about live-filter-lamp-blink.