Thermador appliance control panel showing a fault code

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Thermador Error Codes & Fault Guide

Decode Thermador oven, Star Burner, induction, dishwasher and Freedom refrigeration faults — what each code means, the likely part, and the fix.

Thermador pioneered the professional home range and the Star Burner, and its appliances share control platforms with the wider BSH family. The control watches the oven sensor, induction power boards, dishwasher water and drain system, and refrigeration sensors, and flags faults as oven F-codes, induction E/F alerts, or dishwasher E-codes such as E15 and E24.

Some Thermador codes — especially the Bosch-platform dishwasher E-codes — are well documented and decoded precisely below. Others, particularly older oven F-codes, vary by model and control generation, so we point you to the subsystem and tell you to confirm the exact digit against your model. Each fault includes the likely cause, the part usually involved, owner-safe checks, and when a technician is required.

Searchable reference

Thermador fault code lookup

All 18 documented faults

E001 Wall Oven Thermador oven error E001 means the electronic control unit (the main control board) has detected an internal fault or lost communication with the…
E005 Wall Oven Thermador oven error E005 means the control has detected a stuck, shorted, or continuously pressed touch key on the keypad. The control reads a…
Temp Sensor Fault Wall Oven A Thermador oven temperature sensor fault means the control has read the oven RTD (resistance temperature detector) probe as open, shorted, or out…
Over-Temp Lockout Wall Oven A Thermador oven over-temperature lockout means the control measured the cavity temperature climbing past a safe limit and shut off power to the…
Oven Not Heating Wall Oven A Thermador oven that powers on but will not heat is most often caused by a burned-out bake or broil element, a failed relay on the power board,…
Burner Won't Ignite Star Burner Gas Cooktop A Thermador Star Burner that clicks but will not light is almost always caused by a dirty or wet spark igniter, a misaligned or food-clogged…
F4 Induction Cooktop On Thermador Masterpiece and Liberty induction cooktops, a cookware fault (commonly shown as an F-class code or a flashing pan symbol) means the…
E2 Induction Cooktop On Thermador induction cooktops, an overheat code such as E2 means an element or its electronics reached a temperature limit and the control shut…
E5 Induction Cooktop On Thermador induction cooktops, a power-class code such as E5 means the supply voltage is out of the acceptable range, often a miswired or…
E15 Dishwasher Thermador dishwasher error E15 means water has collected in the base pan and tripped the anti-flood (Aquastop) float switch, so the control shuts…
E24 Dishwasher Thermador dishwasher error E24 means the machine cannot pump water out because the drain path is blocked or restricted, most often a kinked or…
E22 Dishwasher Thermador dishwasher error E22 means the filter and sump area is clogged so water cannot drain or circulate properly. In most cases cleaning the…
E09 Dishwasher Thermador dishwasher error E09 means the flow-through (instant) water heater has failed or its circuit is open, so the wash water no longer heats.…
E01 Dishwasher Thermador dishwasher error E01 indicates an internal electronic control fault, where the main control board has detected a problem with itself,…
Warm / Not Cooling Refrigerator A Thermador Freedom column refrigerator or freezer running warm or not cooling means the cabinet is not holding its setpoint, most often from a…
Evaporator Fan Fault Refrigerator A Thermador Freedom column evaporator fan fault means the fan that circulates cold air off the evaporator has stalled, failed, or is iced over, so…
Temperature Sensor Fault Refrigerator A Thermador Freedom column temperature sensor fault means one of the thermistors (cabinet, evaporator, or defrost sensor) is reading open or…
Defrost Fault Refrigerator A Thermador Freedom column defrost system fault means the automatic defrost cycle is not clearing frost from the evaporator, so the coil ices…

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Frequently asked

Thermador error code FAQ

What does E15 mean on a Thermador dishwasher?

E15 is a leak-protection trip: the dishwasher's base sensor (the anti-flood / Aquastop float) detected water in the base pan and shut off to prevent a flood. It usually means a small leak somewhere in the tub, door seal, or hoses. Tipping the unit to drain the base and clearing the leak resets it; if it returns, the leak source needs to be found.

What does E24 mean on a Thermador dishwasher?

E24 is a drainage fault — the dishwasher cannot pump water out. The usual causes are a clogged filter or drain hose, a blocked air gap or disposer knockout, or a failing drain pump. Cleaning the filter and clearing the drain path is owner-safe; a failed pump needs service.

Why do Thermador oven F-codes vary between models?

Thermador has used several oven control generations, so the same F-number can mean different things across model years. We describe the subsystem each points to (sensor, relay/board, over-temperature) and tell you to confirm the exact digit against your model rather than assume a generic meaning.

Can I fix a Thermador code myself?

Several dishwasher and usage codes are owner-clearable: draining the base for E15, cleaning the filter/drain for E24, using correct cookware for an induction cookware alert, and power-cycling at the breaker. Oven sensor, control-board, induction power-module and refrigeration sealed-system faults need a technician.

Do I need a Thermador-authorized service center?

No. Thermador appliances can be serviced by an experienced independent technician. We have worked on Thermador ranges, cooktops, ovens, dishwashers and Freedom refrigeration across the Bay Area since 2005. We are independent, not manufacturer-authorized. The diagnostic is a flat $89 and every repair carries a 365-day warranty — call (650) 668-1554.

Is it safe to keep using my Thermador after a code?

A dishwasher E15/E24 should stop you from running it until the leak or drain issue is resolved. Oven over-temperature and sensor faults, and induction power-module faults, should also be checked before further use. A simple cookware or routine alert can be cleared and you can continue.

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