Thermador Appliance Repair & Error Code Lookup
Find your Thermador error code below, see what it means, and know whether it's safe to wait or time to call a technician.
Thermador Refrigerator & Freezer — Error Codes
| Code | What it means | Urgency |
|---|---|---|
| E01 / E02 |
Compartment Sensor Failure
Main control board lost communication with the refrigerator (E01) or freezer (E02) NTC thermistor sensor.
|
Medium |
| E09 / E24 |
Defrost System or Drain Failure
Defrost heater element or relay failure, or a frozen/blocked evaporator drain tube causing frost buildup.
|
High |
| E15 |
Water Leak Protection Triggered
Anti-flood sensor detected water pooling in the base pan, disabling the water inlet valve to prevent flooding.
|
High |
| E36 |
Ice Maker System Malfunction
Ice maker motor/module failure, frozen water line fill tube, or improper freezer harvesting temperature.
|
Low |
Thermador built-in Freedom® Column refrigerators rely heavily on proper airflow around the compressor at the top or bottom toe-kick. Dusting these coils every 6 to 12 months prevents high head pressure and unnecessary cooling error triggers.
Signs your Thermador refrigerator needs a professional
- Temperature fluctuating unexpectedly between preset zones
- Ice or heavy frost accumulating on the back panel inside the freezer
- Water pooling under the crisper drawers or around the bottom toe-kick
- Continuous clicking sounds coming from the sealed system compressor
Thermador Dishwasher — Error Codes
| Code | What it means | Urgency |
|---|---|---|
| E15 |
Water Leak in Base Pan
AquaStop® flood protection activated due to water collecting in the bottom pan. The drain pump will run continuously.
|
High |
| E24 / E25 |
Drainage System Malfunction
Dishwasher is failing to drain completely. Caused by a clogged filter, kinked drain line, or blocked impeller pump.
|
High |
| E01 / E05 |
Heating Element or Overfill Error
Heat pump system error or water level sensor detecting excess fill in the washing tub.
|
Medium |
| E22 / E23 |
Drain Pump Electrical Fault
The main control unit detected open circuit, short, or improper resistance in the drain pump winding.
|
Medium |
If your Thermador dishwasher throws an E15 code, the internal safety switch has disabled the machine. Tilting the dishwasher back slightly to clear water out of the tray may temporarily clear it, but you should still have the underlying leak inspected.
Signs your dishwasher needs a professional
- Drain pump runs continuously even when the door is opened
- Standing water remains at the bottom of the tub after a cycle finishes
- Dishes remain dirty or come out cold without drying heat
- Control display flashes red or shows Home Connect network errors
Thermador Oven & Range — Error Codes
| Code | What it means | Urgency |
|---|---|---|
| E011 / E012 |
Temperature Sensor Circuit Short or Open
The RTD temperature probe in cavity 1 is shorted (E011) or open (E012), preventing safe temperature regulation.
|
Medium |
| E025 |
Oven Overtemperature Protection
Cavity exceeded safe thermal threshold limit. Power is cut off to the heating elements to prevent damage.
|
High |
| E030 / E115 |
Door Lock / Communication Error
Door latch mechanism motor failure or loss of communication between primary and secondary control modules.
|
Medium |
| E305 |
Steam System Malfunction
Steam convection oven boiler, water pump failure, scale buildup, or reservoir seating issue detected.
|
Low |
Thermador Pro Harmony and Pro Grand ranges feature high-wattage elements. Running a high-heat self-cleaning cycle can sometimes cause thermal fuses or door lock solenoids to trip. Turning off the breaker for 10 minutes can reset transient software locks.
Signs your oven or range needs a professional
- Oven door remains locked shut after a self-cleaning cycle completes
- Star® Burners click constantly without lighting or maintaining flame
- Baking leads to unevenly cooked or charred food due to bad calibration
- Steam convection cavity fails to draw water from the reservoir
Thermador Repairs in the Field
A look at recent professional service and diagnostic work on Thermador high-end ranges, wall ovens, and cooktops.
Thermador Repair FAQ
Why is my Thermador appliance showing an error code?
Thermador appliances utilize internal BSH diagnostic sensors. When a sensor measures readings outside calibrated limits (such as temperature, water level, or voltage), it triggers an error code to protect the machine.
Can I fix a Thermador error code myself?
Some minor software glitches clear after flipping the home circuit breaker off for 5 to 10 minutes. However, persistent codes involving heating elements, leaks, or sensors require physical inspection and repair.
How much does Thermador appliance repair typically cost?
Costs depend on the specific parts required and complexity. We offer transparent diagnostic testing, and the service call fee is applied directly toward your total repair cost upon approval.
Do you service all Thermador built-in appliances?
Yes, our technicians are fully trained to repair all luxury Thermador products, including Freedom® Refrigeration, Star® Burner Ranges, Masterpiece® & Professional Ovens, and Thermador Dishwashers.
Still seeing the error?
Our technicians diagnose and repair Thermador appliances every day. Get it fixed right the first time.