DIY GE Range Temperature Sensor WB20K10015 Replacement

Is your GE oven taking longer to heat up or struggling to maintain the right temperature? A faulty temperature sensor could be the reason your baking fails to impress. Discover how you can easily replace sensor on your own—with a helpful how-to video just a scroll away—saving you the hassle and cost of a repairman.

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Is your GE oven cooking unevenly, heating too slowly, or not reaching the right temperature at all? The culprit might be a faulty temperature sensor, WB20K10015. Luckily, replacing this sensor is a quick and easy DIY job that can save you the cost of a service call. We’ll walk you through how to remove the old sensor and install the new one so your oven gets back to heating like it should.

Watch: How to Install a Temperature Sensor

The information in this article may not apply to your specific appliance model. We recommend consulting your manufacturer’s documentation or contact us with any questions.

Why the Oven Temperature Sensor Matters

The temperature sensor plays an important role in oven functionality. This component monitors the internal oven temperature and communicates this data to the electronic control board.

The control board then adjusts the gas or electric power to the oven burner or heating element to reach and maintain the set baking temperature. Without an accurate, working temperature sensor the oven cannot regulate heat properly.

Symptoms of a failing oven temperature sensor include:

• The oven not reaching the set baking temperature
• Long preheating times
• Foods taking much longer to cook or bake
• Foods burning on the outside but uncooked inside
• Error codes related to temperature regulation

Replacing the sensor restores normal oven operation so you can once again achieve evenly baked dishes, perfect roasts, and consistent cooking times.

How the Oven Temperature Sensor Works

The temperature sensor is typically mounted on the top oven wall towards the back. It has a long probe that extends into the oven cavity to measure the ambient air temperature.

Sensors work by changing resistance as the temperature changes. The sensor probe contains two different metals that expand at different rates as they heat up.

This expansion changes the resistance across the sensor. The electronic control board detects this change and adjusts the heating accordingly. If the resistance reading is off, the oven will not maintain the correct temperature.

Over time, the sensor probe or connecting wires may degrade from long-term heat exposure leading to inaccurate resistance measurements. Replacing the sensor restores optimal performance so your oven can bake like new again.

Tools You’ll Need

• Phillips head screwdriver
• 1/4 inch nut driver
• Needle nose pliers
• The part we are replacing in this guide is WB20K10015. Use your model number to make sure you get the correct part for your appliance.

Step-by-Step Guide to Replacing the Sensor

Replacing the oven temperature sensor is a straightforward repair you can tackle in an hour or less. Follow these key steps:

Locate the Sensor

1. Find the small metal cover on the rear interior wall of the oven.
2. Use a nut driver to remove the two screws securing the cover.
3. Take off the cover to reveal the porcelain sensor probe held by a metal bracket.

Detach the Old Sensor

1. Remove the screw anchoring the sensor wire to the bracket.
2. If necessary, use pliers to unclip the sensor from the bracket.
3. Follow the sensor wires to the wiring harness connection.
4. Carefully disconnect the wires—either by unclipping or unscrewing the connector.
5. Take a photo or note wire placement to ensure proper reassembly.

Install the New Sensor

1. Thread the new sensor’s wires through the access hole in the rear wall.
2. Connect the wires to the oven’s harness exactly as before.
3. Use a screw to secure the wire to the bracket.
4. Clip the porcelain probe into the bracket, ensuring the tip extends into the oven cavity without touching the walls.
5. Adjust the bracket if needed to properly align the sensor.

Reassemble the Oven

1. Reattach the metal cover over the sensor bracket.
2. Secure it with the two retaining screws using the nut driver.
3. Reinstall the oven door and ensure it operates smoothly.
4. Slide the oven racks back into place.

Test the Repair

1. Plug the oven back in or turn the circuit breaker back on.
2. Set the oven to bake at 350°F and confirm it reaches the set temperature.
3. Run a few test baking cycles to ensure the oven is regulating heat properly.

With the new oven temperature sensor installed, your GE range oven should now maintain set temperatures and bake evenly once again. Perfect cookies, cakes, and casseroles are back on the menu!

Where To Get More Help

Thanks for reading! If you have any other appliance repair needs or projects, you can find other resources and our DIY blog at AppliancePartsPros.com. There, you can enter your model number to order the exact parts you need. Most orders arrive in 2-3 business days.

We’re here to help! You can reach our award-winning customer service team at 1-877-477-7278, chat with a pro on our website, and watch thousands of free video tutorials on our YouTube channel.

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