Thermador built its reputation on the patented Star burner, whose star-shaped head spreads flame further across the pan than a round burner and gives a genuinely low simmer. That design, along with the ExtraLow settings, is part of what makes a Thermador range feel different to cook on, and it is also where a lot of service calls begin when a port fouls or an igniter weakens. On the electronics side, Thermador shares a control platform with the wider Bosch group, which means its ovens report faults through readable E and F codes that make diagnosis faster once you know how to interpret them.
We service the full Thermador kitchen, cooking and refrigeration alike, for homes across the Vail Valley and the Front Range communities we cover.
Models We Service
- Pro Harmony and Pro Grand ranges: PRD and PRG series with Star burners and the warming or griddle options
- Rangetops: PCG Star burner rangetops in 30 to 48 inch widths
- Cooktops: Masterpiece gas and the Freedom Induction cooktop
- Wall ovens: Masterpiece and Professional series single and double convection ovens
- Refrigeration: built-in and Freedom column refrigerators and freezers
- Dishwashers: Star Sapphire and Emerald series panel-ready dishwashers
Error and Fault Codes
Thermador ovens use the Bosch group E and F code convention, where the code points to a circuit rather than a vague warning. Reading it correctly saves guesswork. Below are codes we encounter often, though the exact meaning can vary by model year, so we always confirm with live measurements.
| Code / Symptom | Likely Meaning | What We Do |
|---|---|---|
| E or F sensor code | Oven temperature sensor open or shorted | Test sensor resistance, replace if out of range |
| Door-lock fault code | Latch motor or lock switch failure | Repair the lock assembly, clear the fault |
| Relay or control fault | Failed relay on the control board | Test the board, replace if the relay is dead |
| Dead after self-clean | Tripped thermal cutout | Reset or replace the cutout, check the door lock |
| Star burner weak or uneven | Clogged ports or fouled igniter | Clean burner and ports, test igniter and pressure |
See our Thermador E and F code guide and Thermador oven not heating article for the full breakdown.
Common Problems We Fix
- Star burners with a weak or partial flame from clogged ports
- Igniters that click without lighting
- Ovens showing an E or F code and refusing to heat
- Ovens that trip a thermal cutout after self-clean
- Freedom Induction cooktops that will not detect cookware
- Door-lock and latch faults after cleaning cycles
- Built-in refrigeration that drifts warm or ices over
- Dishwashers that will not drain or leak at the door
How We Diagnose a Thermador Fault
Thermador wall ovens and ranges share a control lineage with other GE-style platforms, so they report F codes that name a circuit rather than a part. An F code tied to the temperature sensor means the control is reading a resistance outside the expected band. That is usually the sensor, but a chafed harness in the oven cavity produces the same reading, and replacing the probe alone would leave the fault in place.
On Professional ranges we look at the spark module and the burner switches before condemning the igniters. Star burners foul at the ports, and a burner that clicks without lighting is more often a dirty port or a wet switch than a failed module. Freedom induction tops get a different approach, since the fault is usually in the cooling fan circuit or a thermal cutout rather than the coil.
Sapphire dishwashers report their own codes, and we treat those the same way: confirm with a meter, then repair the cause.
Thermador Service Notes for Vail Homes
High-altitude gas setup is the single most common issue we correct on Thermador ranges in the valley. A Professional range needs the correct orifices for the elevation, and units brought up from Denver or installed by a general contractor without a conversion often run rich. The symptom owners describe is uneven flames, soot on pans, or a burner that will not hold a low simmer.
Vail kitchens also run hard during a short season. A range that sits unused for months and then cooks for twenty people at the holidays will surface every marginal igniter and switch at once. We would rather look at a range in the shoulder season than during a holiday week, and we say so plainly when an owner asks about timing.
Maintenance and Guides
Cleaning the Star burner ports and keeping the ExtraLow simmer clean prevents most flame complaints, and reading codes early stops small faults from stranding an oven. Our Thermador maintenance guide covers burner and cooling upkeep. For repair-versus-replace decisions on a higher-mileage unit, see repair vs replace a luxury appliance.
Thermador Showing a Code?
Book a brand-focused technician who reads the E and F codes correctly. Diagnostic and travel fees, if applicable, are confirmed before the appointment and before repair approval.
Repair or Replace a Thermador
A Thermador Professional range is built into the kitchen and into the budget, and replacing one usually means cabinetry and countertop work on top of the appliance. That math favors repair heavily. Igniters, spark modules, elements, and probes are all sensible repairs on a range of any age we commonly see here.
The harder call is a wall oven with a failed control on a discontinued platform. We check part availability before quoting rather than after, and if the board is genuinely unavailable we say so plainly instead of selling a diagnostic that ends in a dead end.
Frequently Asked Questions
What Do Thermador E and F Codes Mean?
Why Is Only the Center of My Star Burner Lighting?
Do You Repair Thermador Freedom Induction Cooktops?
My Thermador Oven Tripped After Self-Clean, Is That Repairable?
Do You Service Thermador Refrigeration Too?
Are Your Thermador Parts Model-Specific?
Related Repairs and Guides
Range Repair
Star burner range and rangetop service.
Cooktop Repair
Gas and induction cooktop service.
Thermador E and F Codes
Decoding oven fault codes.
Thermador Oven Not Heating
The usual culprits behind a cold oven.