Why an Induction Cooktop Does Not Detect a Pan
Test a pan's magnetic base, size, and placement before deciding that an induction cooking zone needs repair.
If an induction zone turns on but does not heat, test the pan before treating the cooktop as broken. Confirm that a magnet sticks firmly to the flat base, center the pan on a zone sized for it, and try a second known-compatible pan. If compatible cookware still is not detected, follow the model’s error-code instructions and arrange service rather than opening the cooktop.
Test the pan, its size, and its position
Induction cooking depends on magnetic cookware. A label that says “stainless steel” is not conclusive because stainless constructions vary. Place an ordinary magnet against the cooking surface on the bottom of the empty, cool pan. A firm attraction indicates ferromagnetic material. No attraction means the pan is not suitable for induction. Weak or spotty attraction may produce poor results, depending on the cooktop and the pan’s layered base.
Next, compare the flat magnetic area of the pan with the zone, not just the rim diameter. Center it over the marked cooking area. Bosch’s induction cooktop troubleshooting guidance says cookware that is too small or incorrectly placed may not be detected. It also recommends the magnet test for compatibility.
Remove silicone mats, trivets, and packaging from between the pan and glass unless the cooktop manual explicitly permits an accessory. Make sure the pan base and glass are dry and free from grains that could scratch the surface. Do not slide cookware across the glass while testing positions.
Rule out controls before requesting repair
Confirm that the intended zone is selected and its power level is above zero. Check for a control lock, timer behavior, demonstration mode, or a displayed symbol in the owner’s manual. Controls differ enough that a symbol should not be decoded from a different brand’s website.
If every zone is dead and the display is blank, verify the home breaker only as the manual allows. Resetting a breaker repeatedly is not troubleshooting. If it trips again, leave it off and call a qualified electrician or appliance technician. Built-in cooktops often use high-voltage dedicated circuits and should not be pulled from the counter by a housemate.
If one pan fails but another known-compatible pan works on the same zone, the cookware is the likely variable. If one zone rejects every compatible pan while other zones work, record that pattern for service. If all zones show the same code, photograph it and consult the exact model manual. Bosch advises contacting support when an error persists after its basic checks.
Stop using a cooktop with cracked glass, arcing, smoke, a burning smell, or controls that remain hot or unresponsive. Keep the circuit off if instructed by the manufacturer or emergency professional. A crack is not repaired with filler, tape, or a protective mat.
How HomeCo helps
Create a HomeCo appliance card with the complete model number and manual link. Add a short cookware list showing which household pans passed the magnet test and which zone sizes they suit. That keeps each person from reporting the same incompatible pan as a new appliance failure.
For a service request, attach the code photo, the zone used, cookware base diameter, and result with a known-compatible pan. If a part is eventually needed, use HomeCo’s guide to matching the full appliance model suffix before anything is ordered. Do not assign internal electrical repair as a household chore.
FAQ
Does any pan that attracts a magnet work perfectly?
Not necessarily. Magnetic attraction is the first compatibility check. The base also needs to be sufficiently large for the zone, centered, reasonably flat, and acceptable under the cooktop manufacturer’s cookware instructions. A pan with only a small magnetic insert may heat differently from one with a broad magnetic base.
Why does a small pan work on one zone but not another?
Detection thresholds and zone sizes can differ. A pan may present enough magnetic area to a small zone but too little to a larger one. Use the zone and minimum cookware dimensions listed in the model manual.
Should the glass itself glow red?
An induction element does not need to glow like a radiant electric element because energy is induced in compatible cookware. The glass can still become hot from contact with the heated pan. Follow the residual-heat indicator and do not touch the surface merely because no element is glowing.