The short answer
F3T1 is the User Interface Thermistor reporting a problem to the control, or the control failing to read it. From the front it looks like a panel that no longer takes input reliably: a key repeats, a key does nothing, or a selection cancels itself. Cut the power for a minute first — a stuck key and a latched fault are indistinguishable until you do.
Code table
Reference| code | meaning | owner-checkable |
|---|---|---|
| F3T1 | There may be a problem with the User Interface Thermistor or the associated wiring. | partly |
| F3H1 | There may be a problem with the Humidity Sensor or the associated wiring. | see page |
| F3T2 | There may be a problem with the Convection Thermistor or the associated wiring. | see page |
What you observe
- A key repeats or registers by itself — A keypad read as permanently pressed is the classic form of this fault.
- A selection cancels seconds after being made — The control receives a key it did not expect and drops the cycle.
- NEAR MISS — the display is blank and unlit — No display at all is a supply fault, answered elsewhere.
Likeliest causes first
- Moisture, grease or cleaner behind the keypad — First, because it is both common and the only cause an owner can fix: liquid wicks under the membrane during cleaning and shorts a trace until it dries.
- A worn or delaminated membrane — Second: the panel is a printed film whose traces wear where fingers land, which shows as one dead key long before the whole pad goes.
- The ribbon connector or the control input — Last: the ribbon into the board is fragile and is disturbed by any earlier repair, and the input stage is the least likely of the three.
Check in this order
- Cut power for a minute, then note which key misbehaves first — Naming the key narrows the fault to a row and column of the membrane.
- Dry the panel and leave it unused for a few hours — If moisture is behind it, the fault clears as it dries — the cheapest test there is.
- Only then treat it as hardware — A fault surviving a reset and a dry-out is the User Interface Thermistor or its ribbon.
Owner-safe steps
- Cut the breaker for a minute, then retry the panel — Clears a latched fault and a stuck-key state together.
About 5 min
- Wipe the face with a barely damp cloth, never a spray — Spray cleaner is what gets behind the membrane. Wet the cloth, not the panel.
Tools: soft clothAbout 10 min
- STOP HERE — the ribbon is behind the control panel — That means the panel forward with the breaker off, which is a technician job.
Safety first
Safety
Unplug the appliance or switch off its breaker before removing any panel — a capacitor can hold a charge after the power is off. An oven carries a heavy element circuit behind the rear panel, and the cavity stays dangerous long after the heat is off. Leave the door lock and its switch wired exactly as they are.
When to call
Call when the panel still misbehaves after a reset and a proper dry-out, or when a key you need is dead. The repair is a User Interface Thermistor assembly and the labour is the awkward part: the panel comes forward with the appliance drawn out and the ribbon tears if it is handled cold. Call at once if the oven starts heating on its own — a panel that can select unasked is a panel to isolate.
Neighbouring codes — F3H1 and F3T2 appear beside F3T1 in the table and are recorded against different hardware — different questions with different answers. A shared prefix on this brand is not a shared fault.
What this page does not cover
Generalized information: this reads F3T1 as the shared Maytag oven table records it, so it covers the model lines using that table and no others. Where a page exists for your family or model line, that one is the more specific answer — start there if your model is named.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
