Iberna ITD AirFlow Condenser Tumble Dryer: Drum motor drive semiconductor failure E09; motor triac shorted or direction reversing relay contacts burned on control PCB.
On Iberna tumble dryers utilizing AirFlow condensation duct system, front/rear NTC temperature sensors, and capacitive run motor: Heavy drum overload inducing high stall current, inductive voltage spikes from motor reversing, or PCB component fatigue.
Inspect control PCB for burned traces or cracked solder joints around motor relays. Test triac anode-cathode resistance with multimeter (must not be 0 Ω). Set selector to 0, hold Start/Pause and Half Heat buttons for 5 seconds until beep acknowledges memory wipe, then return to Off.
