Short answer: E005 on a Thermador oven indicates a temperature-sensor circuit fault: the control has lost a valid reading from the oven sensor, often because the sensor is open, shorted, or has a wiring fault. Test and replace the sensor.
What E005 Indicates
The oven relies on a resistance-type temperature sensor. When the control reads that sensor as out of range, open, or shorted, it posts E005 and usually stops heating to stay safe. The code is the control protecting the cavity, not a random fault.
Confirming the Cause
We measure the sensor resistance at room temperature against its specification and check the harness and connector for a break or corrosion. A sensor that reads far off spec, or a broken wire, confirms the code. Occasionally the control input itself is at fault, which we rule out.
The Repair
The fix is a OEM sensor matched to the model, or a harness repair if the wiring is the culprit. After replacement we verify the oven reaches and holds temperature and that E005 does not return on a test bake.
Error & Symptom Reference
| Check | Finding | Action |
|---|---|---|
| Sensor resistance | Out of spec | Replace sensor |
| Harness/connector | Break or corrosion | Repair wiring |
| Control input | Faulty (rare) | Replace control |
| After repair | Holds temperature | Verify, close job |
How We Approach the Repair
A one-time hiccup can follow a power blip, but when the problem keeps returning on a Thermador unit it is worth a real diagnosis. We check the wiring, the sensor, and the control on the Thermador unit before condemning any single part, which avoids needless swaps. Keep track of how often the fault returns, because the frequency tells us whether it is a part or a setting. When you are ready to have it looked at properly, we cover Greenwood Village and the nearby towns and quote the work in writing first.
Want This Handled for You?
Book a diagnosis. Diagnostic and travel fees, if applicable, are confirmed before the appointment and before repair approval.