F3T1 flags the user interface thermistor and the wiring to it.
Model compatibility: KitchenAid reuses codes across series and model years, so F3T1 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
Possible problem with the user interface thermistor or its wiring.
F3T1 appears on the KitchenAid over-the-range microwave error list with a short explanation: there may be a problem with the user interface thermistor or associated wiring.
At a glance
| Code | F3T1 |
|---|---|
| What it means | Possible problem with the user interface thermistor or its wiring. |
| What you can check | Switch the breaker off for 60 seconds, switch it on, and watch for another minute. Confirm that the microwave operates normally. |
| When to call a technician | If F3T1 does not go away, schedule a service visit. Do not remove covers, and tell the technician the full code and what you were doing when it appeared. |
Where F3T1 sits in its series
- F3T1: user interface thermistor
- F3T2: convection thermistor
- F3T3: hood temperature thermistor
- F3T4: magnetron temperature thermistor
What the article leaves open
It gives owners no symptom, no cause and no inspection step. It also does not cover the code’s duration, any cooking restriction, or the display and buttons, so none of that is asserted here. As plain background, a thermistor is a temperature-measuring part, and the user interface is the control panel region of the microwave.
The reset
- Breakers off for 60 seconds.
- Breakers on.
- Another minute of watching.
- Confirm that operation is normal.
When F3T1 does not go away
Contact service or set up an appointment, as KitchenAid suggests. If a different code replaces it, look at the neighboring page F2E1 for the keypad.
Before you phone
Describe the microwave, quote the complete code (F3T1) and say you did the reset. With no documented symptom there is nothing more to report beyond what you noticed yourself, such as a time or a cooking mode in use when it appeared. Do not remove covers, and leave the inside to a technician.
Where we service KitchenAid microwaves
Our line for the Miami, New York, Houston, Los Angeles and San Diego metro areas is (844) 919-2035. Mention the code and model number when you call.
Source: KitchenAid Product Help, Over-the-Range Microwave Error Code
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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