One letter, three meanings: no pan, Keep Warm, or a supply problem. Check the pan first, then reset the breaker if needed.
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.
Plain language
What this code means
A U means no pan is detected (or it is unsuitable, misplaced or the wrong size), Keep Warm is on, or the power supply has a problem.
The letter U on a KitchenAid cooktop is not a single-meaning symbol. The first thing to do is run through the candidates, starting with the ones that cost nothing.
What the electric cooktop page lists
Nothing is sensed on the surface, so set a utensil of suitable size onto the cooking area.
Keep Warm is switched on.
Something is wrong with the electrical power supply.
Induction models and the pan test
Induction cooktops show the symbol if the pot cannot be used for induction cooking, is positioned badly, or does not suit the size of the chosen zone. After you select a zone, it turns itself off when 30 seconds go by without a pot. F0E1 treats the cookware question in more depth.
Power supply reset
If neither the pan nor Keep Warm fits, KitchenAid says to reset the product:
Breaker off for sixty seconds.
Breaker back on.
Sixty seconds of watching, to be sure U does not come back.
A check that the cooktop works.
When to ask for help
KitchenAid lists no technician line for U. If it keeps returning even though a suitable pot is centered, Keep Warm is off and the reset is done, the page has nothing further and service is the sensible request. Another display, C82, is tied by the manufacturer to a pan that is empty or the wrong size.
One more question
The pan is on the zone and U remains. Why? On an induction model the pot has to be suitable, set correctly and match the zone’s size. Missing any one of the three can bring up the symbol.
Cooktop repair in Los Angeles
Phone (310) 363-8964 if the U will not go away. Mention the pan you tried and whether your cooktop is electric or induction. Our cooktop repair page explains the visit.
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.
Seeing this code on your KitchenAid appliance?
Book a specialist visit for a clear estimate and approval before any repair.
