Dyson supersonic Professional Edition Operating Manual page 18

LEDs
Settings
When solid, the LED lights indicate which settings
you're using.
Flow
Temperature
No red LED
Maximum operating temperature in normal working
conditions: 105°C.
Maximum thermistor temperature at safety shut
down: 145°C.
Diagnostics
The LEDs will flash indefinitely to communicate one
of the following warnings:
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Fast
Medium
Gentle
High
Medium
Low/scalp mode
Constant cold/cold shot
Clean the filter. See the "Regular
filter maintenance" section for
details.
If all three red lights remain
illuminated contact the Dyson
Helpline.
DO NOT TURN BACK ON