Thermador, Bosch's high-end sibling
Thermador is a California-based luxury brand owned by BSH, the same group that makes Bosch. In the kitchen it covers professional ranges and rangetops, wall ovens (steam and speed ovens included), induction and gas cooktops, warming drawers, ventilation, microwaves, built-in coffee machines, dishwashers and refrigeration. Of all of those, refrigerators are the Thermador appliance we see most, with dishwashers and wall ovens next.
Four Thermador features that change the diagnosis
Start with the Star burner. Thermador's gas burners sit on a star-shaped base, and the cap has to cover that star completely for the burner to light and burn evenly. Each one should catch within about four seconds. When a burner clicks more than four times before it lights, a cap that's out of place is the likely reason.
ExtraLow burners behave in a way that surprises people. At the lowest settings, the flame cycles on and off every minute instead of holding a tiny steady flame. That's normal, and it doesn't mean the valve is bad.
The Freedom collection of column refrigeration pairs separate refrigerator, freezer and wine columns. Each column has its own dedicated evaporator and compressor, so trouble in one doesn't mean the others are affected, and we diagnose each column by itself.
Many current Thermador appliances are also Wi-Fi enabled and electronically controlled. For a frozen display, resetting the power at the breaker is a sensible first move.
The three numbers Thermador will ask you for
Thermador prints its numbers on a rating plate, and its support team wants three of them. The E-Nr is the model or product number. The FD is the production code, which pins down the build date and the parts version. Sometimes they'll want the Z-Nr too. On Pro Grand and Pro Harmony ranges, look behind the kick plate or above the main oven, since it varies by model. For anything else from Thermador, your model's use and care guide shows the plate location. Jot all three numbers down before you call anyone, because the FD number is what determines which parts fit.
Looking after Thermador finishes and burners
- Dirty range burner ports clear out with a straightened paper clip, a sewing needle or a thin wire, and leave the caps and grates alone until they've cooled.
- Rub stainless steel the same direction as the polish lines, then dry it straight away so you don't get water marks.
- Keep chlorine-based cleaners off Thermador finishes, and test new cleaners somewhere out of sight first.
- A range that seems dead may just have a tripped breaker or Sabbath mode switched on. Thermador lists both as reasons a range won't operate.
Storms, snowbirds and column fridges
Thermador's range guide wants every knob turned off when a hurricane-season outage hits. You can light standard burners by hand using the steps in the use and care guide, but ExtraLow burners and the griddle need power to work. Turn off any knob that was left on when the power dropped, then wait five minutes before lighting anything.
Own a column refrigerator in a seasonal home? Keep the air conditioning running while you're away so the columns aren't fighting heat and humidity. Close the water supply to any ice maker, too.
Thermador's warranty and where we fit
Thermador's warranty runs for a set period from the original purchase date and covers repairs done by Thermador or its authorized service providers. Work by non-authorized providers isn't covered during that period. Pull out the warranty sheet for your model, since coverage isn't the same across the whole line. Still under warranty? Contact Thermador first.