Flashing Red Light
Dyson Hair Dryer / Styler
Severity: ModerateWhat Does This Error Mean?
A Dyson Supersonic or Airwrap flashing a red light means either the filter is blocked and the machine is overheating, or the machine has detected an internal fault. Count the flashes — the pattern indicates the specific fault. Clean the filter first as this resolves most red light situations.
Affected Models
- Dyson Supersonic HD07
- Dyson Supersonic HD08
- Dyson Airwrap Complete
- Dyson Airwrap Multi-Styler
Common Causes
- Filter blocked with lint — thermal protection activated
- Machine overheated from extended use in a very hot environment
- Internal fault detected by the machine's diagnostic system
- Attachment not correctly seated (Airwrap)
How to Fix It
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Count the number of red flashes.
The Dyson Supersonic and Airwrap use flash codes to communicate faults. 1 flash: filter needs cleaning. 4 flashes: machine has overheated. 9 flashes: internal motor or electronics fault. Identify the pattern before taking action.
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For 1 flash: clean the filter immediately.
Remove the filter cap from the handle base (twist counter-clockwise on Supersonic; unscrew on Airwrap). Rinse under cool water, tap out the lint, and allow to dry completely. Do not use the machine while the filter is wet or removed — refitting a wet filter causes electrical damage.
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For 4 flashes: allow the machine to cool.
Place the machine in a cool, well-ventilated area. Do not cover or place it in a drawer. Wait at least 30 minutes before attempting to restart. Continued use of an overheating machine causes permanent motor damage.
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For 9 flashes: contact Dyson support.
9 flashes indicates an internal fault that requires service. Register your Dyson at dyson.com and contact support — Dyson's 2-year warranty covers manufacturing faults. Have the serial number ready (printed on the product label).
Frequently Asked Questions
Is it normal for a Dyson to flash red occasionally?
A single brief flash of red during use is the machine warning you the filter needs attention — it is not a fault, it is a maintenance reminder. A sustained red light or a repeating flash pattern that prevents operation is a fault that requires the steps above. Regular filter cleaning prevents red light events entirely.
My Dyson Airwrap flashes red when I attach a barrel — what does that mean?
A red flash specifically when attaching a barrel on the Airwrap usually means the attachment is not correctly seated and the machine has detected an incomplete connection. Remove the barrel, ensure the attachment ring is clean and free of hair debris, and reattach firmly until you feel a click. Burnt or damaged barrel contacts can also cause this — inspect the contacts on both the barrel and the machine body.