Up-and-down air swing
The long flap across the outlet moves up and down on its own, spreading the air from ceiling to floor; press again to stop it where it is.
What pressing it does
Press SWING (or the vertical-swing button). Midea’s flap swings up and down with one press and stops with the next; Daikin sets the flaps in 5 steps or swinging. Mitsubishi Electric fixes the flap horizontal in cooling and angled down in heating when it is on AUTO.
What it does not do
It does not swing the air left and right — that is a separate button on most remotes — and it does not reach every angle in every mode: Daikin and Fujitsu limit the flap’s range by mode.
Makes differ, check your unit’s manual: the same drawing can mean different things on different brands, and only your model’s manual says exactly what a button does and which modes it works in.
- What it looks like
- A side view of the air outlet with its flap and a curved double-headed arrow pointing up and down.
- Names makers use
- SWING (Midea, Fujitsu); Vertical air swing (Samsung); VANE CONTROL (Mitsubishi Electric); Flaps (Daikin)
Where makers differ
Makers name the same flap in opposite ways: Midea calls it the “horizontal louver” (it lies horizontally and swings up and down), Fujitsu the “vertical airflow direction louver” (it sets the vertical direction), Samsung the “Vertical air swing”. Go by the arrow’s direction, not the word.
Often confused with
The upright blades behind the flap move from side to side on their own, spreading the air across the room.
Other symbols with the same shapes
Sources
No single published standard defines air-conditioner remote icons, so this meaning is taken from 5 makers’ own manuals, each fetched and read on the date shown:
- Midea: Midea — Remote controller owner’s manual, RG51A(2)/E and RG51B(2)/E (PDF) — “The horizontal louver will swing up and down automatically when pressing Swing button. Press again to make it stop.” Remote display: horizontal louver auto swing icon. Checked 2026-09-26.
- Daikin: Daikin web operation manual — Adjusting the airflow direction — “To adjust the flaps (horizontal blades) … The flaps (horizontal blades) will begin to move vertically. The airflow direction: 5 steps.” The movable range varies by operation mode. Checked 2026-09-26.
- Mitsubishi Electric: Mitsubishi Electric — MSZ-LN indoor unit service manual OBH766 revised edition B (PDF, UK library) — 9-6 AUTO VANE: “By selecting SWING mode with VANE CONTROL button, the horizontal vanes swing vertically.” VANE AUTO: horizontal in COOL/DRY, angle 4 in HEAT. Checked 2026-09-26.
- Fujitsu General: Fujitsu General — Operating manual, wall-mounted 18/24RLB and 30/36RLXB (US, PDF) — “8 SWING button — Starts or stops automatic swing of the vertical airflow direction louver.” Checked 2026-09-26.
- Samsung: Samsung — Wind-Free 2.0 air conditioner user manual, AR**TSFA*** (PDF on Samsung HVAC’s document store) — Remote overview: “09 Vertical air swing indicator … 16 Vertical air swing button”; indoor unit part “04 Airflow blade (up and down)”. Checked 2026-09-26.
Written in our own words; quotations are the makers’ wording.