F3
Hotpoint
Open or Shorted Oven Temperature Sensor Circuit
Oven will not heat properly and displays F3; may occur shortly after starting a bake or broil cycle.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Open oven temperature sensor, broken sensor wiring harness, loose sensor connector at control board, failed EOC sensor input circuit
How to Fix / Troubleshooting
Safety first: Disconnect power at the breaker before testing or replacing components.
Steps to check:
- Locate sensor: Inside the oven cavity, find the temperature sensor at the rear wall. Remove the mounting screws and gently pull the sensor forward.
- Disconnect and test: Unplug the sensor connector. Using a multimeter, measure resistance across the sensor terminals at room temperature. Expect ~1050–1100 Ω. If reading is infinite (open) or near 0 Ω (short), replace the sensor.
- Check harness: If sensor tests good, inspect the harness from the sensor to the EOC behind the control panel. Look for broken, pinched, or burned wires. Repair or replace as needed.
- Connector seating: Reseat the sensor connector at both ends (sensor and EOC). Corrosion or loose pins can cause intermittent F3 errors.
- Control board: If sensor and wiring are confirmed good, the EOC sensor circuit may be defective. Replace the EOC.
Tip: Take a photo of wiring before disconnecting anything to ensure correct reassembly.
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Repair Difficulty
Medium
3/5
Required Part
Oven Temperature Sensor (RTD)
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