Induction Cooktop Not Working? Troubleshooting Guide
Quick answer
An induction cooktop that won't heat is most often using non-magnetic cookware, has the child-lock engaged, lost power at the breaker, or shut down from overheating. Test your pan with a magnet; if it doesn't stick, induction won't work. Check the breaker, unlock the panel, and let the unit cool.
Induction cooktops heat only magnetic cookware through an electromagnetic field, so when one won't work, the cause is often the pan, a control setting, or the power supply rather than a broken cooktop. These units also self-protect by shutting down when they overheat or sense a fault. This guide walks you through the quick checks that resolve most no-heat complaints before any repair is needed.
1. Test your cookware with a magnet
Induction only heats ferrous (magnetic) cookware. If you've switched to aluminum, copper, glass, or some stainless pans, the cooktop won't detect them and won't heat, often flashing an error or pan-detection symbol. Hold a refrigerator magnet to the bottom of your pot; if it sticks firmly, the pan works on induction. The pan must also cover enough of the cooking zone and sit centered. Undersized or warped-bottom pans may not register at all.
2. Check the power supply and breaker
Induction cooktops draw heavy current and run on a dedicated high-amperage circuit. If the whole cooktop is dead, a tripped breaker or a fault in the hardwired connection is a prime suspect. Check your electrical panel and reset any tripped breaker. If it trips again immediately, stop and do not keep resetting it, as that signals an electrical fault. A loose or burned connection at the cooktop's terminal block also kills power and requires a technician.
3. Disengage the control lock and clean the panel
Most induction cooktops have a child-lock that disables the touch controls, often shown by a lock icon or 'L' on the display. If the buttons won't respond, hold the lock or key button for a few seconds to release it, following your model's manual. The touch surface also needs to be clean and dry; spills, water, or even a wet cloth resting on the controls can confuse the sensors and prevent the cooktop from responding. Wipe it dry and try again.
4. Let it cool and read any error code
Induction units shut off to protect themselves when the electronics overheat, which can happen with blocked ventilation underneath or prolonged high-power use. If the cooktop stops mid-cook or won't start, give it 20 to 30 minutes to cool, and make sure nothing blocks the vents beneath the unit. Note any error code on the display, as these map to specific faults like pan-detection, overheating, or a sensor failure. Look the code up in your manual before calling for service.
When to Call a Specialist
If the cooktop is completely dead with power confirmed at the breaker, throws a persistent internal error code, or the breaker trips every time you reset it, the fault lies in the cooktop's electronics or the high-voltage wiring. Induction units carry dangerous voltage and should not be opened at home. A specialist technician can test the board and connections safely. Call Commonwealth Appliance Repair at (202) 327-0059 for same-day service.
Frequently Asked Questions
Why won't my induction cooktop heat my pan?
The most common reason is non-magnetic cookware. Induction only heats ferrous pans, so aluminum, copper, and some stainless won't work. Test with a magnet: if it sticks to the pan's base, it's compatible. The pan must also be large enough and centered on the cooking zone to be detected.
Why does my induction cooktop turn off by itself?
Induction cooktops shut off to protect their electronics from overheating, often due to blocked ventilation underneath or extended maximum-power use. They also stop if no pan is detected. Let the unit cool, clear any obstructions beneath it, and check for an error code on the display before resuming cooking.
My induction cooktop won't respond to touch. What's wrong?
First check the child-lock, shown as a lock icon; hold the lock button to release it. Then make sure the glass surface is clean and dry, since spilled liquid or a wet cloth on the controls can block the touch sensors. If it still won't respond after both, the control board may need service.
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