What E027 Means
E027 indicates a problem with the oven's temperature sensor — it may not be reading accurately, leading to ovens that run too hot, too cold, or fail to reach the set temperature.
Common Causes of E027
- Failed or drifting temperature sensor (RTD probe)
- Damaged sensor wiring
- Sensor positioned incorrectly after a prior repair
🔧 One Safe Check You Can Try
There isn't a safe at-home test for this — temperature sensor resistance is checked with a multimeter on a de-energized oven, which is technician work.
⚠ Why You Shouldn't Go Further Than That
- Testing the sensor's resistance requires a multimeter and a fully de-energized oven — skipping either step risks a shock.
- A sensor swapped in slightly out of position from the original reads inaccurately even when the part itself is fine, wasting the repair.
- This fault can be confused with a heating element issue, leading to replacing the wrong, more expensive part.
- The sensor wiring routes near the oven cavity's high-heat zone; a nicked wire here can create an intermittent fault that's hard to trace.
- Rear panel access to reach the sensor typically voids the remaining warranty.
Still Seeing E027?
Book a factory-trained technician and get it diagnosed correctly the first time — no guesswork, no repeat visits.