Display works but nothing heats
The cooktop powers on, numbers or indicators show up, but the pan never gets hot on any zone.
Start here: Start with pan compatibility, pan size, lock mode, and power supply checks.
Cooktop Troubleshooting
Induction Cooktop Not Heating
Direct answer: An induction cooktop that powers up but does not heat is most often dealing with the wrong pan, poor pan contact, a control setting issue, or a single failed heating zone. Start by separating all-burners-no-heat from one-burner-no-heat before you think about parts.
Most likely: The most likely cause is a pan the cooktop cannot detect, followed by a control lock or a problem limited to one induction cooking zone.
Induction cooktops are picky in a way regular electric tops are not. If the display lights up but the pan stays cool, the cooktop may be working exactly as designed and just not seeing the cookware. Reality check: a lot of 'dead burner' calls end with a pan test, not a part replacement. Common wrong move: testing with aluminum, copper, warped, or undersized cookware and assuming the cooktop is bad.
Don’t start with: Do not start by ordering a cooktop switch or taking the glass top apart. Induction units refuse to heat for simple pan and sensing reasons all the time.
If every burner is deadCheck house power, lock mode, and whether the unit is detecting any pan at all.
If only one burner is deadUse a known-good magnetic pan on that zone and compare it to a working zone before suspecting the induction cooktop element or control.
Last reviewed: 2026-04-04
What the failure looks like
Only one burner will not heat
Other zones work normally, but one cooking zone will not detect the pan or will not produce heat.
Start here: Compare that zone with a working one using the same pan and the same setting.
Cooktop clicks, flashes, or beeps and stops
The zone starts, then drops out, flashes a pan symbol, or shuts itself off after a few seconds.
Start here: Look for pan detection trouble first: wrong material, pan too small, warped base, or pan not centered.
Heat starts weak or cuts in and out
The burner warms briefly, then loses heat, especially with certain pans or after a few minutes.
Start here: Check for poor pan contact, overheated electronics, or a failing single induction cooking zone.
Most likely causes
1. Cookware the induction cooktop cannot detect
Induction only works with magnetic cookware and enough flat contact area. If the pan is wrong, too small, or warped, the zone may light up but never transfer heat.
Quick check: Try a flat magnetic pan that works on another zone. If a magnet barely sticks or only sticks at the rim, that pan is suspect.
2. Control lock, wrong setting, or timer-limited operation
Some units power up normally while the controls stay partially locked, a zone is not actually selected, or the heat level is set too low to notice quickly.
Quick check: Clear lock mode, select one zone deliberately, and set it to a medium-high level with a pan already centered on the zone.
3. Power supply issue affecting the cooktop
An induction cooktop can appear alive on the display side while missing part of its incoming power, especially after a breaker event or recent electrical work.
Quick check: If all zones are dead, check for a tripped double breaker or a cooktop that resets but never heats any pan on any zone.
4. Failed induction cooktop element or induction cooktop switch on one zone
When one burner consistently fails with known-good cookware and the other zones work, the fault is usually local to that cooking zone or its control.
Quick check: Use the same pan on a working zone and then on the dead zone. If the pan works everywhere else, the problem is in that burner circuit.
Step-by-step fix
Step 1: Make sure the cooktop is actually seeing the pan
Induction heat starts with pan detection. If the cooktop does not sense the pan, it will act dead even when the electronics are fine.
- Use a flat-bottom magnetic pan, not aluminum, glass, copper, or a pan with a badly warped base.
- Center the pan fully inside the marked cooking zone.
- If you have several pans, test the one that works best on another induction zone first.
- Look for a flashing pan symbol, blinking power level, or a zone that shuts off after a few seconds; those usually point to pan detection, not a bad part.
Next move: If the zone heats with a different pan or with better centering, the cooktop is fine and the cookware was the issue. If a known-good magnetic pan still will not heat, move on to settings and power checks.
What to conclude: This separates a cookware mismatch from an actual cooktop problem before you open anything up.
Stop if:
- The glass top is cracked.
- You smell burning plastic or hot electronics.
- The zone sparks, smokes, or trips the breaker immediately.
Step 2: Clear lock mode and rule out a simple control mistake
A locked control panel or an unselected zone can make the cooktop look dead when it is really waiting for the right input sequence.
- Turn the cooktop off, wait 30 seconds, then power it back on.
- Check for a lock icon or control lock indicator and clear it using the normal unlock sequence shown on the panel.
- Place the pan on the zone before selecting the burner, then set that zone to a clear cooking level like medium-high.
- If the cooktop has boost or timer features, turn those off for the test and use a normal heat setting.
Next move: If the burner heats normally after unlocking or reselecting the zone, you had a control-state issue, not a failed part. If the controls respond but the pan still stays cold, check whether the problem affects one zone or all zones.
What to conclude: This rules out the easy stuff that causes a lot of false no-heat complaints on induction tops.
Step 3: Separate one-dead-zone problems from whole-cooktop problems
The repair path changes fast depending on whether one burner is dead or every burner is dead.
- Test the same known-good pan on each cooking zone one at a time.
- Note whether one zone never detects the pan, one zone detects but does not heat, or every zone fails the same way.
- If only one zone fails, try that zone at more than one heat level and compare its behavior to a working zone.
- If every zone fails, think power supply or main control trouble before you think about a single burner part.
Next move: If you confirm only one zone is bad, you can focus on that burner circuit and its control. If no zone heats at all, stop chasing a single burner and check the cooktop power source next.
Step 4: Check the cooktop power supply without opening the unit
Induction cooktops need proper supply voltage. A partial power problem can leave lights and touch controls working while heating fails.
- Go to the electrical panel and look for a tripped double breaker serving the cooktop.
- Reset the breaker once by switching it fully off and then back on.
- If the cooktop was recently installed, moved, or serviced, consider a wiring or supply issue rather than a bad burner.
- After resetting power, test one known-good pan on one zone, then another zone.
Next move: If heating returns after a breaker reset, monitor the cooktop. A repeat trip means there is still an electrical fault that needs diagnosis. If the breaker is fine and all zones still will not heat, the problem is likely internal and not a cookware issue.
Step 5: Act on the pattern you found
By now you should know whether this is cookware, controls, one failed zone, or a larger electrical problem.
- If the cooktop now works with the right pan, keep using flat magnetic cookware sized to the zone.
- If one zone alone fails with a known-good pan while other zones work, plan on a failed induction cooktop element or a bad induction cooktop switch for that burner after confirming fit for your model.
- If all zones stay dead with proper cookware and a good breaker, stop at diagnosis and schedule appliance service for internal electrical testing.
- If the cooktop shows burning smell, repeated breaker trips, or visible damage, leave it off until repaired.
A good result: If the unit heats reliably after the pan and settings checks, no repair part is needed.
If not: If one zone is still dead, replace the confirmed zone component only after matching the exact cooktop model. If all zones are dead, move to professional service.
What to conclude: This keeps you from buying the wrong part. Single-zone failures support a burner-level repair. Whole-unit failures usually need meter testing and internal diagnosis.
Replacement Parts
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FAQ
Why does my induction cooktop turn on but not heat?
Most of the time it is not detecting the pan. Wrong pan material, a pan that is too small, a warped base, lock mode, or a zone that was not properly selected are more common than a failed part.
How do I know if my pan is the problem?
Try a flat magnetic pan that you know works on another induction zone. If that pan heats and the original one does not, the cookware is the issue. A simple magnet test is a quick first screen, but real-world pan performance matters more.
If only one induction burner is not heating, what usually failed?
When the same pan works on other zones but one zone stays dead, the fault is usually in that burner's induction cooktop element or its induction cooktop switch or control path.
Can an induction cooktop have power but still not heat because of the breaker?
Yes. Some units can light the display or respond to touch controls even when there is a supply problem. If every zone is dead, check the double breaker before assuming the cooktop itself failed.
Should I replace the switch or the burner first?
Not until you confirm the pattern. If one zone alone fails with known-good cookware and the rest of the cooktop works, those are the two likely parts. Match the exact model and failed zone before buying anything.
Why does the burner start and then shut off after a few seconds?
That usually points to pan detection trouble first. The cooktop starts looking for the pan, does not like what it sees, and drops the zone out. Try a flatter, magnetic pan centered on the zone before chasing internal parts.