Straight to it
This code says the resistance it reads across the lower oven temperature sensor or the control and the wiring between them left the window the control accepts. The machine protects itself by refusing to heat on an unverified reading, which is why the cycle ends early.
What this code is documented as meaning
Reference| Code | Documented meaning |
|---|---|
| F3 E5 | There may be a problem with the Lower Oven Temperature Sensor, the Control, or the associated wiring. |
Symptoms that travel with this code
- The code appears and the cycle stops heating — Everything else looks normal — lights, fan, display — and only the heat is missing.
- The appliance runs longer than it used to for the same result — A reading that is drifting rather than failing stretches every cycle before it ever raises a code.
- 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.
The ranked causes behind this reading
- 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.
- Lower oven temperature sensor out of tolerance — Second: the element itself drifts or opens with age, and once it reads outside the accepted band the control has nothing to work from.
Check these in this order, and why
- Look at the connector at the sensor before anything is measured — Seated, clean and tight is a five-second answer to the most likely cause.
- 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.
What you can do without tools
- 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
- Run the shortest cycle the appliance offers and watch for the code — A short cycle that stays clean while a long one fails tells a technician the fault is thermal.
About 20 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.
The safety line on this appliance
Safety
Unplug the appliance or switch off its breaker before any panel comes off; a capacitor can hold a charge after the power is off. Everything in the procedure above stays outside the cabinet for that reason.
When this is a service call
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. One exception to the order above, because it is about safety rather than cost: 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.
Codes next to this one
How far this page applies
What this page covers is the code as documented for the model lines that use this probe on this cavity. Where a family-specific or model-specific page exists, it is the closer answer - start there, and use the index below to find it.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
