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Thermador E115 — Oven temperature sensor short — heater circuit fault

Complete diagnostics and troubleshooting guide for Thermador oven error code E115. Learn what it means, what causes it, and whether you need professional repair.

Severity High Repair Needs technician Components Temperature sensor, wiring harness, control board

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E115 at a glance.

Error code E115
Appliance type Oven
Severity High
Repairability Needs technician
Affected components Temperature sensor, wiring harness, control board

Understanding error code E115.

Oven temperature sensor short — heater circuit fault

What Thermador E115 error means on your oven

Thermador oven error code E115 indicates: Oven temperature sensor short — heater circuit fault. This is classified as a High-severity issue — schedule service promptly to prevent further damage.

What Thermador oven error code E115 means

Thermador oven error E115 indicates the oven temperature sensor has a short circuit — the control board reads abnormally low resistance, which it interprets as an extremely high temperature. The oven will shut down heating as a safety measure.

Common causes

Sensor wire insulation damaged by heat exposure over time, sensor element internally shorted, moisture in the sensor connector (common after steam cleaning or in steam oven models), or physical damage to the sensor probe inside the oven cavity.

Troubleshooting steps

1. Turn off the oven at the circuit breaker. 2. Allow to cool completely. 3. Power on and see if E115 clears — sometimes moisture evaporates and the code resolves. 4. If E115 returns immediately, the sensor or wiring needs replacement.

Sensor resistance specifications

At room temperature (72°F), a functioning Thermador oven sensor reads approximately 1,080-1,100 ohms. A shorted sensor reads near 0 ohms. The technician measures resistance at the control board connector to determine if the fault is in the sensor itself or the wiring between the sensor and board.

When to call a technician

E115 requires professional repair. Do not use the oven with this code active — without proper temperature feedback, the heating element could run uncontrolled. Our technicians carry replacement sensors for all Thermador oven models. Schedule service for same-day booking.

Error E115 quick reference

  • Error code: E115
  • Appliance type: Thermador Oven
  • Severity: High
  • Repair type: Needs technician
  • Affected components: Temperature sensor, wiring harness, control board

Troubleshooting Thermador E115 step by step

  1. Power reset: Turn off the appliance at the circuit breaker for 5 minutes, then restore power. If E115 clears and doesn’t return, a transient electrical issue caused it.
  2. Visual inspection: Check for obvious issues — loose connections, visible damage, water leaks, or unusual sounds from the affected components (Temperature sensor, wiring harness, control board).
  3. Document the error: Note when E115 first appeared, whether it’s constant or intermittent, and any other symptoms (sounds, smells, performance changes).
  4. Check related systems: Error codes can sometimes be triggered by adjacent systems — verify that water supply, electrical connections, and ventilation are functioning normally.

Professional diagnosis and repair

If E115 persists after a power reset, professional diagnosis is required. Our certified Thermador technicians use factory diagnostic tools to read stored error history, test individual components (Temperature sensor, wiring harness, control board), and identify the exact failure point.

Repair typically involves:

  • Retrieving and analyzing stored fault codes from the control board
  • Component-level testing of the Temperature sensor, wiring harness, control board
  • Replacing failed components with genuine Thermador OEM parts
  • Verifying the repair by running a test cycle and confirming the error clears

Preventing Thermador E115 from recurring

While some component failures are age-related and unavoidable, regular maintenance reduces the likelihood of error E115 recurring:

  • Follow the maintenance schedule in your Thermador owner’s manual
  • Keep the appliance clean — debris and buildup accelerate component wear
  • Address minor issues early — small problems left unrepaired often trigger error codes
  • Use a surge protector — power fluctuations can damage electronic control boards

For complete specifications and troubleshooting documentation, visit the Thermador official site. To schedule certified Thermador oven repair, Schedule service online — we service all Thermador models in all 50 states with genuine OEM parts and a 30-day labor warranty.

Frequently asked questions about Thermador wall ovens
What is True Convection?
True Convection uses a dedicated third heating element behind the fan. Standard convection just circulates heat from the bake/broil elements with a fan. True Convection provides more even heat distribution across all racks without needing to rotate pans.
What does SoftClose mean?
Professional series wall ovens feature hydraulic hinge dampers that prevent the door from slamming. The door closes smoothly and silently from any angle. If your Professional oven door starts slamming, the hydraulic damper pistons need replacement.
How often should I self-clean?
No more than 3-4 times per year. Excessive self-clean cycles stress thermal fuses, door locks, and the oven cavity enamel coating. For routine cleaning, use baking soda paste instead.
Can I use my oven during a steam system descale?
No — the descale cycle uses the oven cavity. The process takes about 45 minutes. Plan around it. Steam ovens should be descaled quarterly (monthly in hard water areas).
What’s the advantage of a triple wall oven?
Thermador is the only brand offering three independent oven cavities. You can bake, broil, and roast at three different temperatures simultaneously — ideal for holiday cooking or entertaining.

Can't resolve E115? Our certified technicians diagnose and repair every Thermador oven — current production, discontinued, and legacy units. Schedule service or call us for expert help.

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