The short version
In plain terms, F02 means the resistance it reads across the oven temperature sensor or the control and the wiring between them left the window the control accepts. You can clear the code and start again, but heating is held back until the reading comes back inside its window.
The documented code reading
Reference| Code | Documented meaning |
|---|---|
| F02 | There may be a problem with the Oven Temperature Sensor, the Control, or the associated wiring. |
What the appliance does alongside the code
- The code appears and the cycle stops heating — Everything else looks normal — lights, fan, display — and only the heat is missing.
- Temperature drifts, or the display disagrees with the food — A probe reading a few ohms off is still inside its window, so the cabinet runs cool or hot before the code ever latches.
- NEAR MISS - nothing heats and no code shows at all — That is a power or element fault rather than a reading fault, and it belongs on the page for that symptom.
Causes, and why they rank that way
- A loose or corroded connector at the sensor — Ranked first because it is the failure that needs no part: the probe is fine, the joint carrying its signal is not, and heat cycling at the back of the cavity is what works a pin loose.
- The board input itself — Last, and deliberately last: an input stage fails far less often than the circuit in front of it, and replacing it first is the expensive way to find out the connector was loose.
The order to work through it
- Follow the harness for rub marks where it crosses metal — A witness mark tells you the fault is in the wire, not in the part at either end.
- Compare what the appliance claims against a separate thermometer — Ten minutes with an oven thermometer separates a drifting probe from a control that is being told the truth.
What you can do without tools
- Clear the code with a full power-down — A code that does not return was a single bad read.
About 5 min
- Let the cavity reach room temperature before anything else — A hot resistance reading means nothing, and a hot cavity is the reason half of these codes cannot be diagnosed on the spot.
About 45 min
- STOP HERE if the next step is a meter across the probe terminals — That means a panel off and a connector back-probed, which is where an owner check ends and a service call begins.
Before you open anything
Safety
Safety line for this appliance: unplug it or switch off its breaker before removing any panel, and remember a capacitor can hold a charge after the power is off. Interlocks and switches stay as fitted.
When to call a technician
Call straight away if you smell hot insulation or see discoloured wiring at the back — a connector hot enough to discolour is arcing, and that is a different and more urgent problem than the reading the code named. In the ordinary case, call once the code survives a full power-down: a repeatable reading fault is a probe, a harness or a board, and telling those three apart needs a meter and the resistance table for that model line.
The nearest codes in this set
The scope of this reading
This reading is written for the model lines that use this probe on this cavity, and it stays with the code in its title. If a page exists for your exact family or model, that page is the more specific answer and it should be read first; the code index linked below is where those pages are listed.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
