Error PR-01 indicates an out-of-range thermal event or open/shorted Negative Temperature Coefficient (NTC) thermistor circuit along the dual-edge heating bar assembly. The MCU triggers safety shutdown to prevent thermal runaway.

⏱ 20-35 Mins Troubleshoot →

CODE Flashing White LED Clean Filter Airstrait Straightener Medium

Filter Sensor Loop Lockout

The main microcontroller has entered an airflow protection lockout loop. Differential pressure or thermistor-derived mass airflow measurements across the handle intake cage indicate impedance exceeding factory threshold (<0.8 kPa drop deviation), or micro-switch optical alignment sensors have detected persistent cage unseating.

⏱ 20-30 Mins Troubleshoot →

CODE Flashing Red LED Filter Alert Airwrap Multi-Styler Complete Long High

Flashing Red LED Filter Blockage & Thermal Cutoff Fix

Dyson Airwrap base LED ring pulses red continuously and cuts power within 10 to 30 seconds of operation. This indicates a high-vacuum differential trip where micro-debris or hair product build-up blocks the 360-degree magnetic filter mesh, triggering the glass bead thermistor thermal shutdown protocol to prevent V9 motor burnout.

⏱ 10-15 Mins Troubleshoot →

CODE 3 Flashing Red LEDs Airflow Alert Supersonic Nural Hair Dryer High

3 Flashing Red Lights Airflow Blockage & Filter Jam Fix

Dyson Supersonic hair dryer abruptly cuts out and displays three flashing red LED lights on the rear barrel. This safety alert warns that air intake volume has dropped below the critical 13-litres-per-second threshold, triggering the thermal overload circuit to protect the V9 digital motor from catastrophic heat damage.

⏱ 10 Mins Troubleshoot →