Maytag Oven F3E0 Error: Oven temp sensor open circuit
What Does Maytag Wall Oven Error Code F3E0 Mean? Error code F3E0 on a Maytag wall oven signals an open circuit on the oven cavity temperature sensor. The sensor is a resistance-based RTD probe mounted on the back wall of the oven cavity; the control board continuously measures its resistance to calculate the cavity temperature. […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. Without a functioning temperature sensor the oven cannot prevent overheating. Do not operate the oven in any cooking mode until the sensor is replaced and the fault is cleared.
Can I reset the code?
No. F3E0 is a hardware fault — a breaker reset will not resolve it. The code returns the moment the board samples the sensor circuit and finds it open. Sensor or harness replacement is required.
When to stop immediately?
Stop if you notice: Oven produces burning smells without a valid temperature reading on the display, F3E0 returns immediately after sensor replacement, pointing to a board fault.
Symptoms You May Notice
Oven cavity fails to preheat and shuts off within seconds of starting
The bake or broil element energizes briefly, but without a valid temperature reading the control board cuts power to all heating elements almost immediately.
Display shows dashes or 0°F instead of a rising preheat temperature
Rather than climbing from ambient toward the set point, the display either freezes at zero or shows dashes, confirming the sensor signal is absent.
Self-clean cycle will not initiate
The Maytag wall oven blocks the self-clean function entirely because the control requires a valid sensor reading before engaging the door latch and high-heat cycle.
Oven interior stays cold
The cavity remains at room temperature after several minutes in any cook mode.
Possible Causes
Failed RTD temperature probe inside the cavity
The resistance-based sensor probe mounted on the back wall of the oven cavity has broken its internal sensing wire, creating an open circuit the board reads as infinite resistance.
DIY PossibleBroken or corroded sensor harness wire
The two-wire harness running from the RTD probe to the control board has a break or a corroded connector, interrupting the signal path.
DIY PossibleControl board sensor input circuit failure
Rarely, the control board's own sensor measurement circuit has failed, causing it to read the sensor as open even when the probe is electrically intact.
Requires ProfessionalSafe Checks You Can Do
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1
Inspect the sensor probe and harness connector
Unplug the oven or shut off its circuit breaker. Locate the RTD probe on the back wall of the oven cavity and check that its two-pin connector is fully seated and that the harness wires show no visible damage or corrosion.
Gently wiggle the connector — a loose fit is a frequent cause of intermittent F3E0 on Maytag MEW series ovens.
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2
Measure sensor resistance with a multimeter
Disconnect the sensor harness from the board side and measure resistance across the probe's two terminals. A healthy Maytag wall oven RTD reads approximately 1,080–1,100 ohms at room temperature (68°F).
An open-loop (OL) reading or a value far above 1,100 ohms confirms the sensor has failed and must be replaced. A correct resistance reading with F3E0 persisting points to the harness or the control board.
Tools required
When to Call a Professional
Contact a qualified technician if:
- New replacement sensor still reads open — control board input circuit has failed
- Harness damage extends inside the oven cavity wall beyond accessible reach
- Code appears alongside additional sensor fault codes simultaneously
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