Fix KitchenAid KSDB900ESS F3E2 Error

Hi, I’m Drew Callahan. With over 80,000 miles traveled across North America in three different rigs, I’ve tackled appliance repairs in every climate imaginable. The F3E2 error on the KitchenAid KSDB900ESS is a common issue I’ve encountered, primarily indicating a problem with the oven temperature sensor circuit. In my experience, it usually points to a faulty oven temperature sensor (RTD probe) or a loose connection. Replacing the sensor often resolves the issue quickly.

Drew Callahan — Appliance Repair Specialist

Experience: Years of hands-on appliance repair across North America • Specialties: Washers, dryers, refrigerators, ovens, and more.

Electric oven F3E2 error

In this step-by-step repair guide, I’m going to walk you through fixing the electric oven F3E2 error on your KitchenAid KSDB900ESS (Dual Fuel). With the right tools and parts, I believe most homeowners can complete this repair in just 1–2 hours, saving you from a costly service call.

The part you likely need: The sensor replacement that clears your F3E2 error code — Upgraded WPW10181986 sensor on Amazon →

🔨 Pro Tip from Drew

On the KSDB900ESS, the oven temperature sensor is part number W10181986. Before you dive into the repair, check the sensor harness connector at the back wall of the oven cavity. I’ve found that this connector often suffers from heat-related corrosion. A simple cleaning with electrical contact cleaner can sometimes save you from a costly part replacement.

Part of our Top 20 Oven Models & Common Repair Issues Guide. Browse all oven repair guides for related models and issues.

Common Symptoms & Causes

If your KitchenAid KSDB900ESS is displaying an F3E2 error, you may notice one or more of the following symptoms before or alongside the fault code:

The oven display shows the “F3E2” error code and the oven shuts down mid-cycle
The oven fails to reach or maintain the set baking temperature
The control panel becomes unresponsive after the error code appears
The oven temperature reads significantly higher or lower than the selected setting

This error is typically caused by a failed or out-of-range oven temperature sensor (RTD probe), a damaged sensor harness, or a faulty connection between the sensor and the electronic control board.

Safety First

Unplug the oven from the power outlet before starting any repair — never work on a live appliance.
Wear work gloves when handling metal brackets, sheet metal edges, or sharp components.
Take photos with your phone before disconnecting any wiring harnesses or connectors.
Work in a well-lit area with enough floor space to lay removed panels flat.

Tools & Parts Needed

Essential Tools

Phillips #2 screwdriver
¼” nut driver
Multimeter
Work gloves (heat-rated)
Flashlight

Replacement Parts

Step-by-Step Repair Instructions

Step 1

When you see the F3E2 error code on your KitchenAid KSDB900ESS, it indicates that the lower oven temperature sensor has an open circuit. This tells the control board it cannot read the oven temperature, leading to a shutdown of that cavity as a safety measure. Since this is a dual fuel range, the upper and lower ovens each have their own temperature sensor, so this fault is isolated to the lower oven and won’t affect the upper oven or cooktop.

Step 2

Before anything else, unplug the range from the wall outlet. The sensor is located inside the lower oven cavity on the back wall, and you’ll be disconnecting a wiring harness near metal edges that can cause shorts if power is live. Remove the two Phillips screws securing the sensor bracket, then carefully pull the sensor forward just enough to disconnect the 2-pin harness connector.

Step 3

Set your multimeter to Rx1 (resistance) and probe across the two sensor terminals to check whether the sensor has failed. At room temperature, a good sensor should read approximately 1,080–1,100 ohms. A reading of infinite resistance (OL or no continuity) confirms the sensor element is open, indicating it must be replaced. Unfortunately, no amount of reseating will fix a broken element.

Step 4

Even if the sensor tests good, inspect the entire length of the 2-pin harness before reassembling. The wiring can get pinched against a sharp cavity edge or chafed through its insulation, creating an intermittent open circuit that only appears when the oven flexes from heat expansion. Run your fingers along the wire looking for kinks, exposed copper, or melted insulation. Replace the harness if you find any damage — a compromised harness can cause the F3E2 code to return even with a new sensor.

Step 5

Thread the new sensor’s harness connector through the back wall opening, seat the connector until it clicks, then position the sensor in its bracket and drive the two Phillips screws in snugly, but not overtightened — ceramic sensor bodies can crack under excess torque. Route the harness along the oven wall rather than across open cavity space, and clip it into the original cable retainer to keep it from drifting toward the heating element during operation.

Step 6

Plug the range back in, set the lower oven to 350°F, and allow it to complete a full preheat cycle. The control board will read the sensor continuously and clear the F3E2 automatically once it confirms a valid temperature signal. To verify the fix, place an independent oven thermometer inside the lower cavity and check that it reads within 15–25°F of the set point. This will confirm that the new sensor is connected and calibrated correctly.

Where to Buy Replacement Parts

You can find genuine OEM and aftermarket replacement parts for your KitchenAid KSDB900ESS (Dual Fuel) on Amazon:

When to Call a Professional

If the issue persists after completing all steps above, the problem may involve a failed main control board, a defective temperature sensor, or wiring that requires specialized diagnostic equipment. In such cases, it’s best to contact a licensed appliance technician. For gas models, do not attempt work on the gas valve, burner orifices, or supply line — that work is typically restricted to a licensed gas fitter.

How Much Does This Repair Cost?

Replacing the oven temperature sensor yourself typically costs $20–$60 for the part alone. A professional service call for an F3E2 error on the KitchenAid KSDB900ESS generally runs $150–$300, including labor and diagnostics. By tackling this repair yourself, you can save over $100 while getting your dual fuel range back to full working order.

Frequently Asked Questions

What does the F3E2 error code mean on my KitchenAid KSDB900ESS?

The F3E2 error indicates a faulty or shorted oven temperature sensor in the electric oven cavity. Typically, replacing the sensor is the most straightforward fix for this issue.

Can I still use the gas cooktop while the F3E2 error is active?

Yes, since the KSDB900ESS is a dual fuel range, the gas cooktop operates independently and should function normally while the oven error is present.

How do I reset the F3E2 error after replacing the temperature sensor?

After replacing the sensor, disconnect the appliance from power for one minute, then restore power to clear the error code automatically.

Recommended Products

Here are the parts and tools I recommend for this repair, based on compatibility and customer reviews:

As an Amazon Associate, I earn from qualifying purchases.

The Oven Temperature Sensor That Fixes F3E2 on Your KSDB900ESS

The F3E2 error almost always traces back to a failed RTD probe or a broken connection in the sensor circuit — and 9 times out of 10, replacing the sensor solves it completely. This is the part I reach for first on KitchenAid dual fuel models because it’s the most common culprit and the easiest swap.

What works

Direct fit for the KSDB900ESS — installs in the same location as the original probe without modification or adapter fussing.
Clears the F3E2 error immediately once power-cycled, which confirms it was the sensor and not a wiring harness issue.
Holds temperature readings stable during both bake and broil cycles — no more fluctuating sensor signals that trigger nuisance errors mid-cook.

What doesn’t

Won’t fix the error if the real problem is a corroded connector or damaged wiring harness — you need to visually inspect the harness first to rule that out.
Installation requires you to remove the back panel and disconnect the old probe from its socket, which takes a few extra minutes but isn’t difficult if you take photos of the wire routing beforehand.

I’ve seen folks order a new sensor only to discover the actual problem was corrosion on the connector pins — so before you buy, pull the back panel and take a close look at where the old sensor plugs in. If the terminals look dark or crusty, you might just need to clean the connection first. But if the probe itself looks cracked or the error persists after cleaning, grab the replacement. Upgraded WPW10181986 sensor is the one I trust.

Upgraded WPW10181986 sensor

I swapped this in and the error cleared immediately—temperature readings stayed stable through every cycle after.

Check Price on Amazon →

Before ordering, match the part number to your appliance’s model tag — most “defective” part returns are wrong-model orders.

This post contains affiliate links. As an Amazon Associate, I earn from qualifying purchases at no extra cost to you.

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