Symptoms
- Simmer burner still scorches or boils delicate sauces
- Other standard burners simmer fine at their lowest setting
- Simmer burner may have a different-looking cap or grate marking
- Problem is consistent every time you use it
Likely causes
- CommonSimmer burner valve out of adjustmentThese burners rely on a precisely calibrated low-flow valve that can drift.
- PossibleIncorrect or swapped burner cap on the simmer positionUsing a standard burner's cap on the simmer position changes its output.
- PossibleClogged simmer burner orificeEven a slight clog can push a naturally low-flow burner higher than intended.
- Less commonSimmer valve failureThe specialized valve mechanism can fail over time.
What to do
- Confirm the correct, dedicated cap is on the simmer burner position, checking your manual's diagram if unsure.
- Clean the simmer burner head and cap thoroughly, since this burner is more sensitive to small clogs given its low output.
- Test again after cleaning and reseating the correct cap.
- Compare its lowest flame size to what your manual describes as normal for that burner.
- Do not attempt to adjust the simmer valve yourself, since it's a factory-calibrated part.
- If it still won't simmer low enough after cleaning, have a technician inspect or adjust the simmer valve.
Tools and parts
- Soft brush
Simmer burner capSearch: “range simmer burner cap replacement”
When to call a pro
If cleaning and confirming the correct cap doesn't help, a technician can inspect or adjust the simmer burner's valve.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.