F3: Oven temp sensor open/short (varies by model — read the legend)
- Oven Temp Sensor
- Sensor Harness
The Tools to Test + Fix With
You don't need a shop full of tools — you need these. The multimeter is the one that pays for itself the first time it stops you buying the wrong part on a fault code.
Digital multimeter
Test a suspect part for continuity BEFORE you buy — the single best way to avoid replacing the wrong thing on a fault code.
🔎 On Amazon →Nut driver set (¼" + 5⁄16")
Most appliance panels are held on with ¼" and 5⁄16" hex screws.
🔎 On Amazon →Screwdriver set (Phillips/flat/Torx)
Covers the odd panel screw and the Torx fasteners many brands use.
🔎 On Amazon →The Fix — Free Checks First, Then the Part
Work top-down: the free checks before you spend a dime, and test to confirm the part is actually bad before you buy. When it is a part, you get both options — the genuine OEM part sourced through us and shipped to your door, or a budget aftermarket part on Amazon. Your call.
Oven temperature sensor (RTD)
A cold sensor reads ~1080Ω; open/shorted confirms it. Unclips inside the oven, unplugs behind the rear panel. Match your model.
Oven control board
Rare — only if a known-good sensor still throws F3. Confirm before buying.
Prices shown are typical aftermarket ranges and vary by brand and model — genuine OEM is priced by quote when you request it. Amazon links open a search so you can match your exact model number; as an Amazon Associate, Appliance Ant may earn from qualifying purchases at no extra cost to you. Always confirm the part fits your model.
Safe to Try · Know the Risk · Call a Pro
General guidance, not professional advice. Always unplug the appliance (or shut off the gas/water) before you check anything. If it feels beyond you, that's exactly when to get a pro.
✅ Safe to try yourself
- Let the oven cool; check the sensor probe isn't touching the oven wall.
- With power off, ohm-test the sensor (a cold RTD reads ~1080 ohms).
- Check the sensor plug behind the rear panel is seated.
⚠️ Doable — know the risk
- Temperature sensor replacement — moderate; cut power at the breaker (240V), unclip and unplug the sensor.
🛑 Call a pro — don't touch this
- The 240V wiring, or an oven control board you're unsure of.
The Honest Call
Worth it — the sensor is $15–40 and 20 minutes versus $700+ for a new range.
In Middle Tennessee or Louisiana?
Don't want to DIY it? Our own family of technicians will come clear that F3 for you — honest flat pricing, usually same-day, 4.5★ from 1,000+ neighbors.
🔧 Get it fixed by our techs →