When the burner knob is set within the ExtraLow (XLO) range, the flame cycles on and off. This is normal operation, not a malfunction. At the lowest XLO setting, the flame turns on for 7 seconds and off for 53 seconds. Just beyond the SIM setting, the flame cycles on for approximately 54 seconds and off for 6 seconds.
| Possible Cause | How to Fix |
|---|---|
| Flame cycling on/off at XLO setting | This is normal ExtraLow operation. The flame intentionally cycles to maintain temperatures as low as 100°F. |
7 sec ON / 53 sec OFF54 sec ON / 6 sec OFFAs low as 100°FFind top-rated Thermador Dual Fuel Range repair technicians in your area. Licensed, insured, and reviewed by homeowners.
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If the knob is in the ExtraLow (XLO) range, this is normal. The flame intentionally cycles on and off to maintain very low temperatures (as low as 100°F) for simmering and keeping food warm without scorching.
ExtraLow is a feature on select burners that cycles the flame on and off to maintain temperatures as low as 100°F. It's ideal for simmering delicate sauces, melting chocolate, or keeping food warm.