Kenmore Range F3-E2 Error: Warming Drawer Temperature Sensor Open or Shorted
The kenmore range f3-e2 error is a fault signal from the control board — this guide walks through what it means, common causes, and safe diagnostic steps. What Does Kenmore Range Error Code F3-E2 Mean? F3-E2 on a Kenmore 790-series electric range equipped with a warming drawer stands for Warming Drawer Temperature Sensor Fault — […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Maybe. The main oven bake and broil functions are typically unaffected by F3-E2, which is isolated to the warming drawer circuit. The warming drawer itself must not be used until the sensor or wiring is repaired.
Can I reset the code?
No. F3-E2 is caused by a physical fault in the sensor or wiring. A power reset clears the display temporarily but F3-E2 returns as soon as the warming drawer is activated, because the open or shorted sensor is still present.
When to stop immediately?
Stop if you notice: F3-E2 returns immediately every time the warming drawer is activated, Warming drawer sensor resistance is open or shorted when tested with a multimeter.
Symptoms You May Notice
Warming drawer will not heat at any setting
With F3-E2 active, the EOC board prevents the warming drawer element from energizing. The drawer slides open and closed normally, but no heat is produced regardless of the temperature setting.
F3-E2 appears on the main oven display or warming drawer control panel
The fault code is displayed prominently when any warming drawer function is attempted. The main oven bake and broil functions are typically still operational because the warming drawer circuit is independent.
Warming drawer temperature displays an incorrect or fixed reading
The temperature indicator for the warming drawer may show an implausibly low reading, dashes, or a fixed number that does not change as the drawer cycles — consistent with a disconnected or open sensor.
Warming drawer stays cold while main oven bakes normally
Items placed in the warming drawer remain at room temperature after an extended hold period, even though the main oven reaches and maintains its set bake temperature. The drawer produces no warmth to the touch.
Possible Causes
Failed warming drawer RTD temperature sensor
The temperature sensor specific to the warming drawer has failed open or shorted. The warming drawer sensor is a separate component from the oven cavity sensor and must be tested independently.
DIY PossibleDisconnected warming drawer sensor wiring harness
The wiring harness from the warming drawer sensor to the EOC board has a loose connector or broken wire — common on slide-in ranges where the drawer is pulled in and out repeatedly, fatiguing the harness at flex points.
DIY PossibleEOC board warming drawer sensor input failure
The specific input channel on the EOC board that reads the warming drawer sensor has failed, causing F3-E2 even when the sensor and wiring are intact.
Requires ProfessionalSafe Checks You Can Do
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1
Test warming drawer sensor resistance
Turn off the range at the circuit breaker. Pull the warming drawer out fully and look for the RTD sensor probe mounted in the drawer cavity — it is typically attached to the rear or side wall. Disconnect the sensor wiring connector and measure resistance with a multimeter. Like the oven sensor, a correct reading at room temperature is approximately 1,080–1,100 ohms. Open circuit or near-zero resistance confirms sensor failure.
On some Kenmore 790-series models, the warming drawer sensor is accessible by removing the drawer entirely and reaching into the rear of the drawer cavity. Consult the model-specific service sheet (taped inside the storage drawer or back panel) for the exact sensor location.
Tools required -
2
Inspect the warming drawer harness routing for damage
With the warming drawer pulled out, trace the sensor wiring harness to where it exits the drawer cavity into the range cabinet. Flex the harness gently at the transition point and observe whether F3-E2 clears or changes on the display. A break at this flex point is a common cause on frequently used warming drawers.
The oven can still be used for baking and broiling while troubleshooting F3-E2 if those functions test normally — F3-E2 is isolated to the warming drawer circuit on most Kenmore 790-series models.
When to Call a Professional
Contact a qualified technician if:
- Warming drawer sensor resistance tests open or shorted and F3-E2 persists after sensor replacement
- Harness conductors between the warming drawer and EOC board have confirmed continuity but F3-E2 remains — indicating an EOC board input failure
- F3-E2 is accompanied by other active fault codes suggesting multiple board inputs have failed
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