Gas Range Temperature Sensor — What Part Fixes Oven Temperature Problems?
Need the replacement part? Search your model number at for guaranteed fit and fast free shipping.
Understanding the Problem
The oven temperature sensor (a thermistor) measures the oven cavity temperature and tells the control board how long to heat. When it fails or the wiring is bad, the oven will run too hot, too cold, not reach set temperature, or show error codes. Below are clear diagnostic and repair steps. 1) Verify the symptom: place an accurate oven thermometer in the center of the oven, preheat to 350°F and note whether the oven reaches and holds the set temperature. If temperature is off by more than 25–30°F or swings wildly, suspect the sensor. 2) Visual inspection: turn off power to the range (unplug or shut off circuit breaker). Open the oven and locate the sensor — a thin metal probe protruding from the back wall of the oven, usually held by two screws and connected by a 2-wire harness. Look for physical damage, bent sensor, or loose connector. 3) Test the sensor with a multimeter: with power still off, remove the two screws inside the oven that hold the sensor and gently pull the sensor forward to access the plug (or remove the back panel to access the connector). Disconnect the sensor harness and measure resistance across the two terminals. Expected resistance at room temperature (~70°F / 21°C) is roughly 1,000–1,200 ohms (commonly about 1,080 ohms). If reading is open (OL), very high, or far outside the expected range, the sensor is bad. 4) Check wiring and continuity: if the sensor reads okay, check continuity from the sensor harness at the oven to the control board connector. Repair any damaged wiring or loose connectors. A shorted or intermittently open wire will cause the same symptoms. 5) Replace the sensor: if sensor fails the resistance test or is physically damaged, replace it. Steps: shut off power, remove screws holding sensor to oven back wall, disconnect the two-pin connector, swap in the new sensor (example OEM part WP7430P044-60), reattach screws, restore power. 6) Recalibrate or test: after replacement, preheat with the oven thermometer to confirm the oven reaches and holds the set temperature. If problems continue, the control board or user interface may be faulty — test voltage to the igniter and sensors or consult a technician for board-level diagnostics. Safety note: ALWAYS disconnect power (unplug or turn off breaker) before working on the appliance. For gas ranges, ensure burners/oven are turned off and avoid working with an open gas supply. If you are not confident with electrical diagnostics, hire a qualified appliance technician.
Common Symptoms
Oven too hot or too cold; oven won't reach set temperature; temperature fluctuates widely; uneven baking; error codes related to temperature sensor.
Common Causes
- Failed oven temperature sensor (open or drifted thermistor)
- Loose, corroded or damaged wiring/connector between sensor and control board
- Faulty oven control board or incorrect sensor mounting/position
Popular Parts That Fix This Problem
These are the most common replacement parts that fix this problem. When you're ready to order, click below to find the right part at ProsourceParts.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
Use an oven thermometer plus a multimeter. If the multimeter shows ~1,000–1,200 ohms at room temp and the oven thermometer still reads wrong, the sensor is likely OK and you should inspect wiring/connectors or the control board.
Frequently Asked Questions
How do I test the oven temperature sensor and what reading should I see?
Turn power off, disconnect the sensor harness, and measure resistance across the two sensor terminals with a multimeter set to ohms. At room temperature (~70°F / 21°C) you should see roughly 1,000–1,200 ohms (around 1,080Ω is common). An open circuit or a value far outside this range means the sensor should be replaced. Also confirm the oven thermometer shows the same temperature behavior during a heat cycle to correlate the symptom.
Can I replace the sensor myself and how long does it take?
Yes — replacement is typically a straightforward DIY job taking about 15–45 minutes. Steps: turn off power, open oven, remove the two screws holding the sensor, pull sensor forward and unplug the 2-pin connector (or remove back panel first on some models), install the new sensor, re-secure screws, restore power, and test with an oven thermometer. If wiring or the control board is damaged, the repair will take longer and may require professional help.
Related How-To Videos
Real DIY Repair Stories
Be the first to share your repair story!
Share Your Repair Story
Your experience helps other homeowners fix their appliances. Tell us how it went!
Can't Fix It Yourself? Find a Local Technician
It's perfectly okay to call a professional. Some repairs require specialized tools, deep teardowns, or dealing with complex systems that are better left to the pros.
Find the Right Part for Your Appliance
Don't guess — search your exact appliance model number at ProsourceParts.com to find the correct OEM compatible replacement part. They offer fast free shipping, guaranteed fit, and thousands of parts in stock.
Your Free Parts Videos
Whether your dishwasher won't drain, your dryer stopped heating, or your fridge isn't cold, we've created simple repair guides for the most common appliance problems homeowners face. Each guide explains what's going wrong, the most likely causes, and which replacement parts fix the issue. When you're ready to order, we link directly to ProsourceParts.com where you can search by model number and get the right part shipped fast.