What E3 Means
E3 on a Pro range indicates the oven temperature sensor circuit is open — the oven side of the range has lost its temperature reading entirely.
Common Causes of E3
- Failed oven temperature sensor
- Damaged or disconnected sensor wiring
- Corroded connector at the sensor or control board
🔧 One Safe Check You Can Try
There isn't a safe at-home test for this — sensor circuit testing requires a multimeter on a de-energized range, which is technician work.
⚠ Why You Shouldn't Go Further Than That
- Testing the sensor circuit requires a de-energized range and a multimeter — skipping proper power isolation is a shock risk.
- The sensor sits inside the oven cavity, and prying it out without care can damage surrounding insulation.
- This fault can be confused with a heating element issue, and replacing the wrong part is a common, expensive mistake.
- On a combination range, disturbing wiring near the oven sensor can also affect the shared control board that manages the cooktop side.
- Cavity access to reach the sensor typically voids the remaining warranty on the range.