What you are most likely looking at
Touch controls on a cooktop live under spills and hot pans, and most faults trace to that environment rather than to the electronics behind it. That puts liquid or a pan on the touch area at the top of the list here and an unsuitable or misplaced pan on an induction zone at the bottom.
What you observe
- The panel does not respond to touch — A control lock, or liquid sitting on the glass.
- Beeping with no zone selected — Liquid or a pan on the control area.
- NEAR MISS — the whole cooktop is dead — That is a supply question rather than a control one.
What causes this, in order of likelihood here
- Liquid or a pan on the touch area — Touch controls read a spill as a finger. A boil-over across the panel produces beeping, dead controls or zones changing on their own. It comes first on a built-in because the electronics are the only part of the machine an owner can observe without pulling the appliance out of its cabinet.
- A control lock or child lock — Engaged accidentally, it makes a working cooktop look completely dead. It is cleared from the panel. Electronics are checked here because a mode or a lock imitates a dead machine and costs nothing to clear.
- Thermal protection cutting a zone — The cooktop reduces or stops power when the glass or the electronics run too hot — with a pan boiled dry, or a blocked vent underneath. Sensor-rich platforms fail sensor-first: a thermistor that drifts rather than opens makes the machine behave oddly while every part of it still works.
- An unsuitable or misplaced pan on an induction zone — Induction needs a ferrous base and enough contact area; the wrong pan reads as no pan and the zone shuts down.
The order of checks
- Wipe the whole glass dry and try again — A film of liquid across the touch area explains most of these instantly.
- Look for a lock symbol and hold the lock key — Free, instant, and a common answer.
- Note whether the fault follows heavy or prolonged use — A zone dropping out after long high-power cooking is thermal protection working.
What an owner can safely do
- Clean and dry the glass completely, including the control area — Use a hob cleaner rather than a wet cloth, then dry it.
Tools: cloth
- Test each zone with a known-good flat-based pan — On induction, a magnet sticking to the pan base is the quick test.
- Check nothing is blocking the ventilation gap under the hob — A drawer full of cloths or an ill-fitted batten is a real cause.
Tools: torch
- STOP before removing the hob from the worktop — It is hard-wired to a dedicated circuit and the glass is fragile.
Read this before touching the machine
Safety
A cooktop is hard-wired to its own high-current circuit: switch it off at the breaker before any cleaning that goes beyond the glass surface, and never lift the hob out of the worktop yourself. A capacitor can hold a charge after the power is off. Stop using the appliance if the glass is cracked.
When to stop and call
Cleaning, locks, pan choice and ventilation are yours. Anything under the glass is service work, and a cracked surface or a zone that will not turn off means isolating the circuit now.
Related pages of the same kind
What this page does not cover
Generalized information: this describes the cooktop class, not your serial number. Anything tied to a chassis — pinouts, part numbers, diagnostic key sequences — is absent by design. A family- or model-level page, where one exists, is linked below and takes precedence. The brand overview page linked below covers the other problems on this machine.
Links: - [Common Cafe Cooktop Problems](/blog/cafe-cooktop-problems)
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Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
