Arthur Martin TIG / TI Series / Induction Maestro Cooktop: Power supply line communication missing E8; power board detects missing AC phase voltage on multi-phase terminal connection.
On Arthur Martin (Arthur Martin TIG / TI Series / Induction Maestro Cooktop) models: Tripped individual phase breaker in distribution panel, loose phase jumper link in hob terminal box, or open contact in cooktop isolation switch.
Check electrical distribution board for tripped breakers. Measure AC voltage between each active phase and Neutral at hob terminal block (~230V AC each). Hold Départ/Pause and Option buttons firmly for 5 seconds until the red indicator extinguishes and service memory resets.
