Customer Questions and Answers for Simmer Control by Bosch

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Manufacturer Part

Simmer Control

4.89 (64)

By: Bosch

Part Number: OEM13079046

Manufacturer Part Number: 00645446

The Simmer Control is an OEM component specifically designed for Bosch ranges. It regulates gas flow to provide the lowest possible flame setting needed for delicate cooking tasks. Precise control allows for uniform, attentive simmering.

Symptoms of a bad simmer control include inconsistent or unadjustable flame heights on low settings. Cracks, damage, or wear of internal mechanisms over time can also cause unstable flame control.

Causes of bad simmer control can be normal wear and tear issues like dirt buildup impeding mechanisms. Accidental impact or overheating leading to cracks are other causes for replacement.

Symptoms of a bad simmer control include:

Flames that surge or fluctuate below the lowest settings
Inability to adjust the flame down sufficiently low
Burners that shut off or cause overflow flooding on low-heat

This OEM Bosch part is also compatible with Thermador and some Kenmore ranges. Replace for dependable, Fine-tuned low-heat performance.

Questions & Answers

For Bosch Simmer Control (Part Number: OEM13079046)

Diego May 08, 2026 for Model Number GPS364GDS

the sparks of my unit, the two xtralow, when i turn it off, kepps sparking. i already change the spark reigniter unit, but still the same. what could it be, thanks

1 Answer

Hello Diego, thanks for contacting AppliancePartsPros.com
That is most likely to be an issue with one of the potentiometers 00189816 for those burners or the simmer control unit 00422882. Unfortunately, those parts have been discontinued by the manufacturer and are no longer available for purchase. The manufacturer does not list a compatible substitute or replacement part.

Ron November 28, 2025 for Model Number PG366BLP-02

The burners all work fine. The lower oven will not ignite. What do I need to replace? Thank you.

1 Answer

Hello Ron, and thank you for your question. This could be dependent on what exactly is happening during the cycle. For example, if there is clicking occurring and the burner is thoroughly clean, the main control 00709785 could be the issue.

Robert September 13, 2025 for Model Number PG366BS/02

Can you rewire the simmer burners so that they are regular type /and discontinuing the simmer controller altogether. I am assuming that the knobs would be changed to the regular style also. Since there is no longer a simmer control available. of course I can purchase a used one for the cost of a new top.

1 Answer

Hello Robert, thank you for contacting AppliancePartsPros.com
We cannot advise modifying the range in this manner.

Mark February 17, 2025 for Model Number Thermador PG366BS/02 FD NO 841000044

All 6 stove top burners in my Thermador PG366BS/02 FD NO 841000044 stopped making the clicking sound. It all works perfectly when I light it with a big stove lighter. Is this the part I need to replace? I'm confused because it's labeled Simmer Control, but categorized under Spark Module. Can you point me to the correct part for the spark module for my stove?

1 Answer

Mark,

The simmer control would be the part needed for this issue.

Victor November 10, 2021 for Model Number pdr486gdzs

left rear burner keeps clicking24x7,but lights when required.what needs to be replaced. thanks

1 Answer

Victor,

The most likely cause for this will be the potentiometer or ignition switch on the burner valve.

Dwa November 04, 2021 for Model Number PCS486GL

We have the Thermador PCS486GL and it needs a new control unit. will this part, MFG Part Number: 00645446 work with our model? We ordered the correct potentiometer [00422748] from you already. Thank you!

1 Answer

DWA, unfortunately, the simmer control 00422882 for this model has been discontinued by the manufacturer and is no longer available.

Bill December 23, 2020 for Model Number PSC486GDZS

The gas griddle makes a loud buzzing sound when starting, and the buzzing continues when the griddle is on. The griddle burns well. What do I need to do to get the buzzing to stop?

1 Answer

Bill, it would be recommended that the power supply is turned off to the range and the wires are inspected for any bare spots or loose connections. It is also recommended that the switch is inspected for any signs of electrical arcing. Either of these things can create a buzzing sound, however, without inspecting the circuits it would not be guaranteed as to what has failed.

Bill December 23, 2020 for Model Number PCS486GD

I recently installed a new simmer control (00645446) in this Thermador 6 burner rangetop with griddle. Will Potentiometer 00422748 work with this simmer control? If not, which Pot will?