Induction hob displays F7 when trying to use a zone, often accompanied by clicking or brief activation.

Safety first: Turn off the circuit breaker and verify absence of voltage before opening the connection box.

User checks:

• Confirm that the hob has been installed according to the V-ZUG wiring diagram (correct phase, neutral, and earth connections).
• Do not attempt to rewire if you are not qualified; contact an electrician.

Technical checks (electrician/technician only):

• Measure the supply voltage at the terminal block; verify it matches the rating plate (e.g. 230 V single-phase or 400 V 2N~).
• Tighten all terminal screws to the specified torque to avoid overheating.
• Inspect the mains filter / input board for burnt components or blown fuses.
• Check continuity of internal fuses on the power module and replace only with identical types if allowed by V-ZUG documentation.

Repair: Correct the wiring, replace the mains filter / input board or induction power module if damaged. Always perform insulation and earth continuity tests after repair.