Daniel Mitchell Key Takeaways
- E1 and F5 E0 are the two most common codes and neither is a broken cooktop — one is inverter overload, the other is a pan the coil cannot couple into.
- The magnet test settles pan detection in five seconds: a magnet that sticks firmly means the cookware is induction compatible.
- F9 E0 and F3 E2 are about heat and airflow; a blocked vent makes the inverter trip at loads it used to handle.
- F2 E0 is usually liquid on the glass rather than a failed panel, and the letter L is only the child lock.
- F7 E0, F1 E0 and F3 E0 mean stop using that zone — a stuck relay can energize a zone the control did not ask for.
The Bottom Line
Sort the code by where it comes from before assuming a failure: the pan, the inverter, the cooling path or the control link. Cookware and airflow explain most induction codes, and the three relay and board codes are the ones to stop for.
An induction cooktop fails differently from a radiant one, and its codes reflect that. There is no glowing coil to inspect and no element to swap. Between the wall outlet and your pan sits an inverter that turns household current into a high-frequency magnetic field, and most KitchenAid induction cooktop error codes are that inverter, or the control talking to it, reporting a condition it will not work through. Knowing which part of that chain a code belongs to saves a great deal of guessing.
| Code | What it means | First thing to try |
|---|---|---|
| E1 | Induction inverter overload | Change the pan, let the zone cool |
| F5 E0 | Pan detection fault | Magnet test the cookware |
| F3 E0 | Element sensor open | Nothing — service |
| F3 E2 | Surface temperature too high | Stop cooking, let it cool |
| F6 E0 | Communication loss | Note when it appears |
| F7 E0 | Element relay stuck | Stop using the zone |
| F9 E0 | Cooling fan fault | Clear the vents |
| F1 E0 | Control board EEPROM | Nothing — service |
| F2 E0 | Stuck touch control key | Clean and dry the glass |
| L | Child lock active | Hold the lock pad |
| PF | Power failure notification | Any touch pad |
Two Codes Are Usually About the Pan
E1 and F5 E0 together account for most of the alarm on a healthy cooktop, and neither one is a fault in the appliance. F5 E0 is pan detection: every zone sends a low-power test pulse when you set a heat level, and if that pulse does not couple into a ferrous base, the zone shuts down rather than energizing an unloaded coil.
The test takes five seconds. Hold a kitchen magnet against the bottom of the pan. If it sticks firmly, the pan is induction compatible. If it slides off or clings weakly, no amount of troubleshooting the cooktop will help. Size matters too — a base that is too small, or a pan sitting off to one side of the ring, can fail detection while being perfectly good cookware.
E1 runs the other way. It means the inverter driving that zone hit a protective current or thermal limit, and the classic signature is a zone that simmers happily but drops out within seconds of a boost request. Very heavy solid cast iron is the usual culprit, because it presents a lower impedance to the coil than the inverter is designed to drive.
Heat, Airflow and the Codes Nobody Expects
Induction electronics run hot and are cooled by a fan that most owners never think about. F9 E0 is that fan reporting a fault, and F3 E2 is the glass surface itself measuring above its safe limit. The two are related more often than the code list suggests: a blocked vent raises the electronics temperature, which drives the inverter toward its thermal trip point at loads it used to handle easily.
- Keep the vents clear. On a cooktop over a drawer or an oven, the intake and exhaust paths are usually at the front edge or in the cabinet below.
- Listen for the fan. It normally continues running for minutes after cooking ends. Silence right after a boost cycle is worth noting.
- Stop cooking on F3 E2. Surface temperature above limit is a stop condition, not a nuisance code.
- Mention dust. Cooktops installed above a self-cleaning oven collect more of it than anyone expects.
The Control Panel Codes
F2 E0 is a stuck touch key, and on a glass surface the cause is usually liquid or a heavy object resting on a pad rather than a failed panel. Wipe the surface completely dry and clear, and see whether the code returns. F6 E0 is a communication loss between the generator board and the touch control — that one is genuine, and it tends to appear and disappear as the cooktop warms up.
The letter L is not a fault at all. It is the child lock, held on until the lock pad is pressed and held again. It reaches service lines more often than it should, usually after a cleaning session that involved holding a cloth against the controls.
Codes That Mean Stop Using the Zone
Three entries on the list are not for experimenting with. F7 E0 is a stuck element relay, which means a zone can be energized when the control did not ask for it. F1 E0 is a control board memory fault. F3 E0 is an open element sensor, leaving the control with no temperature reading at all for that zone.
Any of the three deserves the same response: stop using the affected zone and have it looked at. The other zones will normally keep working, which makes it tempting to carry on indefinitely — but a relay that can close on its own belongs in a different category from a pan that will not be detected.
What a Diagnostic Actually Proves
Induction faults are rarely settled by looking. The inverter, the coil and the generator board all live under the glass, and separating an aging inverter from a marginal pan from a cooling problem means measuring under load. Our cooktop repair service covers the induction generator and its cooling, and our cooktop repair cost guide sets out what the common parts involve.
Diagnostic visits start from $95, the final price is confirmed after the on-site diagnosis, and a written estimate comes before any work begins. Before you book a visit, run the magnet test on every pan you use and note which zones the code appears on — that alone rules out the most common cause at no cost.