Maytag Oven F3 Error Code — What It Means
The F3 error code on a Maytag oven or range signals a temperature sensor circuit fault. On most models you’ll see F3 E1 (lower oven sensor, control, or wiring on wall ovens) or F3 E2 (main oven sensor, warming-drawer sensor if equipped, or associated wiring on ranges). The electronic control board has lost the ability to read the temperature probe circuit correctly, so the machine locks out to prevent unsafe operation.
In the field, the fault is almost always the sensor probe itself, a damaged wire harness or connector between the sensor and the board, or a failed control board (often cracked solder joints at the sensor connector). Models with a warming drawer add one more sensor to the mix.
Common Causes
- Failed temperature sensor or probe The oven temperature sensor develops an open circuit or drifts out of specification, so the control can no longer read it.
- Damaged wiring harness or connectors Wires between the sensor and control board are pinched, heat-damaged, or connectors have loose or corroded pins.
- Defective electronic control board Cracked solder joints at the sensor connector or other failures on the control board prevent proper sensor signal processing.
- Warming-drawer sensor fault (F3 E2 on equipped models) If your range has a warming drawer, its dedicated sensor or wiring can also trigger the F3 E2 code.
Step-by-Step Fix
- Kill power at the circuit breaker and leave it off for one minute to reset the control, then remove rear or control-compartment access panels as your model requires.
- Inspect the sensor harness and connectors at both the sensor and the control board for pinched wires, heat discoloration, loose pins, or corrosion.
- Measure the temperature sensor resistance with a multimeter at room temperature; a good probe should read approximately 1.0–1.1 kΩ (about 1,000–1,100 ohms).
- If the sensor tests open, shorted, or far out of range, replace the temperature sensor or warming-drawer sensor as applicable.
- If the sensor and wiring both test good, pull the control board and inspect the sensor connector solder joints and other high-stress joints for cracks; reflow or resolder any cracked joints.
- If the control board shows damage beyond solder joints or reflowing does not fix the fault, replace the electronic control board.
- Restore power and run a test cycle to verify the F3 code does not return and the oven heats normally.
Parts Often Needed
| Part | Notes |
|---|---|
| Oven temperature sensor / thermal probe | Amazon | Match the sensor to your exact model number; some ovens have separate upper, lower, and warming-drawer sensors. |
| Sensor wiring harness | Amazon | Only if physical damage is visible; confirm the connector style before ordering. |
| Electronic control board / ERC / clock control | Amazon | Model-specific; verify your existing board part number before ordering a replacement. |
When to Call a Pro
If you are uncomfortable working inside 240 V appliances or your multimeter readings are inconclusive, call a qualified appliance technician. Control board diagnosis often requires schematic-level troubleshooting, and incorrect part replacement on these boards is expensive. Technicians also have the solder equipment and experience to reflow board-level joints reliably. If your oven is still under warranty or part of a high-end built-in installation, professional service protects both the warranty and surrounding cabinetry.