F3T2 names the convection thermistor and its wiring.
Model compatibility: KitchenAid reuses codes across series and model years, so F3T2 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
Possible problem with the convection thermistor or its wiring.
KitchenAid’s support article says that a microwave showing F3T2 may have trouble with the convection thermistor or the wiring attached to it.
Reset, as the article words it
Cut power at the microwave’s circuit breaker(s) for 60 seconds.
Restore power.
Give the microwave a minute and see if F3T2 returns.
Verify normal operation.
The limit of owner action
That is all an owner is offered. There is no inspection, cleaning or part test, and no cause is named; the source only says “may.”
If the code persists
KitchenAid calls for service when F3T2 keeps appearing. Tell the technician the exact code, plus what the microwave was doing when it showed.
Exact codes matter
The T in F3T2 belongs to the code, and the digit after it changes the part. Four codes, F3T1 through F3T4, name four different thermistors, and a half-remembered one can send a technician after the wrong part. Copy the display and repeat it as shown.
Which appliance list
Wall ovens, ranges and microwaves each get their own KitchenAid code list. What you read here comes from the microwave article alone, so verify your model before relying on a lookup meant for a different appliance.
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.
