Parts for Thermador RDFS30Q: Gas Burner Box Assembly Parts

The Vent Switch is an OEM replacement part for Bosch range hoods. It is an electronic control device located inside the range hood that regulates the internal vent and fan functions.

Causes of a faulty vent switch can include long-term use in high-heat cooking environments, damage from accidental spills or impacts, or normal component degradation over time.

Symptoms include:

• Failure of the fan or vents to engage during cooking  
• Variable or inconsistent fan speeds that don't adequately vent smoke
• Electrical shorting or sparking noises from within the hood control unit

This genuine Bosch replacement part is also compatible with Thermador, Gaggenau, and some Kenmore range hood models.

This white rubber grommet cushions and protects wiring or tubing where it passes through panels, helping reduce wear and vibration. It restores proper fit and prevents chafing in affected openings. What it does

• Protects wiring and hoses from abrasion where they pass through metal or plastic openings
• Dampens vibration and reduces rattling around the penetration point
• Keeps components properly seated for a snug fit
• Visible cracks, splits, or a loose fit are common signs it needs replacement

• Disconnect power (and water if applicable) before accessing internal panels
• Remove the old grommet and compare shape/size to ensure correct replacement
• Press the new grommet fully into the opening; avoid stretching or tearing during installation
• Inspect nearby wiring or hoses for chafing and reposition as needed

This is a cooktop burner igniter OEM replacement part for Bosch cooktops and ranges and is sold as an individual part. This part creates a spark that ignites the burner within your cooktop or stovetop and is made of a combination of metal and ceramic.

Causes of a bad ignition plug can include issues with the electronic module, worn electrodes that no longer spark reliably, or damaged wiring.

Symptoms of a bad ignition plug include:

• Gas burners that will not light or remain lit
• Delayed ignition of one or more burners
• Intermittent or no sparking from the ignition plug

This OEM Bosch part is also compatible with Thermador, Gaggenau and some Kenmore models.

This Venturi is an OEM part for Bosch Ranges. It plays a role in supplying air to the burner for proper combustion. Continuous exposure to heat and debris can cause this part to degrade or malfunction.

What Causes a Bad Venturi: 
Exposure to heat and debris from cooking can cause the venturi to deteriorate over time. Blockages or clogs in the venturi can also affect its functionality.

Symptoms of a Bad Venturi:

• Uneven flame or inconsistent burner operation
• Reduced gas flow to the burner
• Burner flame discoloration

This genuine OEM Bosch part is also compatible with Thermador, Gaggenau and select Kenmore models.

The Burner Cap Assembly is an OEM part for Bosch ranges and cooktops. It refers to the rounded caps placed over each burner to contain and direct flames safely.  

Causes of a bad burner cap assembly can include warping, cracks or punctures from consistent high heat that allow flames to escape improperly. Surface scratches likewise compromise insulation and durability over time.

Symptoms of damaged or faulty caps are:

• Excessive flames licking up beyond cap borders
• Scratches or cracks visible on hot surfaces
• Difficulty adjusting flame height precisely
• Burners do not heat evenly or shut off completely

This genuine OEM Bosch part is also compatible with Thermador, Gaggenau and select Kenmore models.

This burner cap assembly covers and protects the gas burner head and helps shape the flame for even cooking. It replaces a damaged or missing cap to restore proper burner appearance and flame pattern on compatible cooktops. What it does:

• Centers and shields the burner head to promote an even flame distribution during use
• Replaces cracked, warped, or missing caps that can cause uneven heating or unstable flames
• Helps maintain correct burner alignment for reliable ignition
• Restores finished appearance around the burner for safe, proper operation

• One black burner cap assembly

• Turn off gas supply and power to the appliance before servicing
• Allow the cooktop to cool fully; handle with care to avoid scratching or chipping
• Seat the cap squarely on the burner head—no tools typically required

The Gas Valve Cooktop is an OEM part for Bosch cooktops. This valve is responsible for controlling the flow of gas to the burners on the cooktop. It opens and closes to allow gas to pass through when a burner is turned on and stops the flow of gas when the burner is turned off. 

Causes of a bad gas valve can include wear and tear over time, issues with the valve mechanism such as stuck or blocked components, or damage from exposure to moisture or impact. 

Symptoms of a bad gas valve include:

• Burners not lighting or sparking repeatedly without igniting 
• Uneven or unpredictable burner flame heights
• Burners not getting hot enough for cooking
• Burners that cannot be turned on or off
• Gas leaks around the valve area

This OEM Bosch part is also compatible with Thermador, Gaggenau, and some Kenmore cooktop models. 
 

This burner base supports the cooktop burner assembly and helps position the burner cap for a consistent flame. Replace a damaged or warped base to restore proper burner alignment and reliable ignition. What it does

• Holds the burner head and cap in the correct position for even flame distribution.
• Stabilizes the burner assembly so the ignition electrode can spark reliably.
• Helps prevent burner cap wobble or misalignment that causes uneven heating.
• Can resolve symptoms like burners that light intermittently or produce an irregular flame pattern.

• One burner base.

• Disconnect power and shut off the gas supply before beginning service.
• Remove burner grates and caps; replace base using basic hand tools—do not force parts.
• Inspect surrounding gaskets and the ignition electrode for damage; clean any debris before reassembly.

The Gas Burner Seal is an OEM part for Bosch cooktops and ranges. This component sits between the burner and the cooktop surface, providing a seal that prevents gas leaks and ensures efficient burner operation. The seal helps maintain proper gas flow and supports the stability of the burner during cooking.

You should replace the gas burner seal if it becomes damaged or deteriorates. Over time, exposure to high temperatures, food spills, and regular cleaning can cause the seal to wear out or crack, leading to potential gas leaks and reduced burner efficiency.

Symptoms of a bad gas burner seal include:

• Visible cracks or damage to the seal
• Gas smell near the burner area
• Inefficient or uneven burner flames

This OEM Bosch part is also compatible with Thermador, Gaggenau, and some Kenmore models.

This burner base supports the cooktop's burner cap and directs flame for even heating. It replaces a damaged or warped base to restore stable burner alignment and consistent flame pattern. What it does:

• Holds the burner cap in place and centers the gas flame
• Channels gas flow for proper burner operation
• Helps prevent wobbling or uneven heating from a warped base
• Commonly replaced when the base is cracked, corroded, or bent

• One burner base (B)

• Turn off gas supply and power to the appliance before servicing
• Remove surrounding burner components and reassemble in reverse order
• Inspect nearby seals and burner ports for damage; replace if necessary

The Burner Gasket is an OEM part for Bosch cooktops and ranges. It provides a seal between the burner and the cooktop surface, preventing gas leaks and ensuring efficient operation.

Causes of a bad burner gasket can include wear and tear from frequent use, exposure to high temperatures, or damage from cleaning activities. Over time, the gasket may become brittle or develop cracks, compromising its sealing ability.

Symptoms of a bad burner gasket include:

• Gas odors near the cooktop
• The burner not igniting properly
• Visible cracks or deterioration in the gasket
• The burner not sitting securely in place

This OEM Bosch part is also compatible with Thermador, Gaggenau, and some Kenmore models.