U on a KitchenAid cooktop depends on the model: no pan, Keep Warm, or power supply. Here is the order to check them.
Model compatibility: KitchenAid reuses codes across series and model years, so U may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
What this code means
U indicates no pan detected (or an unsuitable, misplaced or wrongly sized pan), Keep Warm on, or a power supply problem.
Reading the U
Three readings are offered for U on the electric cooktop page. Check them in this order, since the first two cost nothing:
At a glance
| Code | U |
|---|---|
| What it means | No suitable pan is detected (unsuited, misplaced or wrongly sized), Keep Warm is active, or there is a power supply problem. |
| What you can check | Put a suitable, correctly sized pan centered on the cooking area, and make sure Keep Warm is off. If that does not help, turn the breaker off for a minute, back on, and watch for another minute. |
| When to call a technician | If U persists with a proper pan, Keep Warm off and the reset done, ask for service. Say whether the cooktop is electric or induction and what pan you used. |
- No pan is detected, so a utensil that fits should go on the cooking area.
- Keep Warm is active.
- The electrical power supply is at fault.
Induction: is the pot right?
According to the induction page the symbol shows if the pot is unsuited to induction cooking, sits wrongly, or is the wrong size for the chosen zone. A selected zone shuts off once 30 seconds pass without a pot being found. Cookware is covered further under F0E1.
A pan is on the zone but U stays
Any shortfall in suitability, placement or size can bring up the symbol, even with a pot on the zone.
If supply is the cause
When pan and Keep Warm are ruled out, the product should be reset as follows:
- switch the circuit breaker off for one minute
- switch it on once more
- observe for another minute in case the symbol shows up again
- confirm that the cooktop runs
Beyond the page
The source has no technician instruction for U. A U surviving a proper centered pot, Keep Warm off and the reset falls outside the page, so ask for service then. Also see C82, a similar display that is linked to an empty pan or a wrong-size one.
Cooktop service across our metro areas
Ring (844) 919-2035 if you are in the Miami, New York, Houston, Los Angeles or San Diego area and U keeps showing. Have the pan type ready and say if the cooktop is electric or induction. More on cooktop repair.
Source: KitchenAid Product Help, Electric Cooktop Error Code or Indicator Light; Induction Cooktops
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Sources & references
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