--- title: "Cooktop controls locked or unresponsive" description: "Bosch cooktop controls locked or unresponsive: a cooktop that beeps and refuses, or does nothing at all." url: "https://boschmiami.support/symptoms/cooktop-controls-locked/" date_modified: "2026-08-18" Appliance type: "Cooktops & rangetops, Ranges" --- # Bosch cooktop controls locked or unresponsive ### The fastest diagnosis is the code The manufacturer lists both the panel lock and a wet control panel as published conditions with their own entries — which is a polite way of saying these are the two commonest reasons a cooktop stops responding, and neither is a repair. ### Two free answers first The panel lock, and a wet panel. The manufacturer publishes both as their own conditions, which tells you how often they are the answer. Four seconds on the lock key and a dry cloth resolve more of these calls than every part on this site put together. ### Demo mode Worth knowing about because it is baffling otherwise: the cooktop lights up, responds to every touch, and produces no heat whatsoever. It is a showroom setting, it arrives with floor-model appliances, and it is cleared with a specific key sequence rather than by a technician. The panel lock is on Four seconds on the lock key clears it. It engages from a spill, a wipe with a wet cloth, or something resting on the key. The panel is wet or covered All the indicators flashing is the published signal for this. Dry it or move whatever is on it and it returns. The display works and nothing heats. It arrives with cooktops bought as floor models and it is cleared with a sequence rather than a repair. No power reaching it A display that does not light at all has its own published entry, and the first step in it is checking the supply rather than the appliance. The touch control assembly When it is genuinely the part — usually one area of the panel dead while the rest works. Hold the lock key for four seconds The key with a padlock or "clean lock" on it. This is the answer more often than anything else on the page. Dry the whole panel Completely, and move anything resting on it — a cloth, a lid, a phone. Cut power for five minutes At the breaker. It clears demo mode on some models and a good share of transient states. Check the breaker if nothing lights A cooktop with a dead display is a power question before it is an appliance question. Check the lock first What it usually means Beeps but nothing happens A lock symbol on the display Everything flashing at once The fastest diagnosis is the code The manufacturer lists both the panel lock and a wet control panel as published conditions with their own entries — which is a polite way of saying these are the two commonest reasons a cooktop stops responding, and neither is a repair. Two free answers first The panel lock, and a wet panel. The manufacturer publishes both as their own conditions, which tells you how often they are the answer. Four seconds on the lock key and a dry cloth resolve more of these calls than every part on this site put together. Demo mode Worth knowing about because it is baffling otherwise: the cooktop lights up, responds to every touch, and produces no heat whatsoever. It is a showroom setting, it arrives with floor-model appliances, and it is cleared with a specific key sequence rather than by a technician. --- **[Read full article: Cooktop controls locked or unresponsive](https://boschmiami.support/symptoms/cooktop-controls-locked/)**