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Error code · Cooktop

Thermador Induction Cooktop F1 / F6 Error Code

A zone switches itself off and F1 or F6 appears. For induction cooktops, Thermador documents that the zone became so hot it shut down to protect the countertop surface around it. This happens at the zone,…

Moderate · have it inspected
Code
F1
Appliance
Cooktop
Brand
Thermador
Warranty
30-day workmanship

What F1 means

A zone switches itself off and F1 or F6 appears. For induction cooktops, Thermador documents that the zone became so hot it shut down to protect the countertop surface around it. This happens at the zone, with the heat sensor reacting, and it is meant to prevent damage to the work surface. The zone usually becomes usable again after a cool-down.

Usual causes of F1

  • Long high-heat cooking with the pan not sitting flat or fully on the zone
  • Cookware that spreads heat unevenly and creates a hot spot the sensor picks up
✓ A safe check worth trying

1. Turn the zone off and remove the pan carefully. 2. Wait until the zone has cooled. 3. Switch it back on to continue. 4. Use a flat-bottomed pan that fully covers the zone next time. 5. If it trips again soon, stop and have it checked.

! Why you should stop here
  • If one zone trips again and again during ordinary cooking, something other than your technique is likely at play and deserves a technician's check.
  • Surface protection is only trusted if the cause is understood, so a repeating trip is worth explaining.
Taking off a panel yourself does not by default void a manufacturer warranty, yet it can lead to accidental damage, and some manufacturers attach their own service terms. Read your warranty paperwork, or ask us, before you decide.
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F1F1 questions
Is my countertop damaged when F1 appears?

The function exists precisely to prevent that. Seeing the code means the protection acted, not that damage has already occurred, though checking the cookware is wise. Still, check the cookware, since an uneven pan is the most likely trigger.

Does F6 mean the same as F1?

Thermador lists them together for induction cooktops under this same zone-overheating description, so the steps and the explanation are shared. So whichever of the two you see, the cool-down and restart steps are identical.

Which cookware helps avoid this?

Pans with a flat, even base that sit completely on the zone. Warped or thin pans create hot spots the sensor can read as too hot.

Request service

Is F1 still showing?

Our technician checks it in your home and hands you a written price before touching anything.