Thermador Cooktop Switch

The Potentiometer is an OEM replacement part for Bosch gas range or cooktops. It functions as a three-terminal resistor that adjusts the flow of electric current, which in turn, controls the ignition and temperature of the cooktop. This component is essential for the precise operation and control of the gas burners, ensuring they light up and maintain the desired flame intensity.

Causes of a malfunctioning Potentiometer can be attributed to wear and tear, electrical issues, or damage due to spills and cleaning products. A compromised potentiometer affects the flow of electric current, leading to issues with the ignition and temperature control of the gas burners.

Symptoms of a bad Potentiometer include:

• The cooktop not lighting or staying lit
• The ignitor continuously clicking without igniting the burner
• Inability to adjust the flame intensity or temperature accurately

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

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.

The Spark Switch is an OEM part for Bosch ranges. This part ignites the burners by sending a signal to the spark module, which then produces the spark needed to ignite the gas.  

Causes of a bad spark switch can include wear and tear from regular use, damage from spills or cleaning agents, or electrical issues.  

Symptoms of a bad spark switch include:

• Burners not igniting
  Continuous clicking even after the knob is turned off
  No spark when attempting to ignite the burner
  The cooktop not producing a flame

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

This potentiometer is the rotary sensor behind the control knob. It converts knob rotation into an electrical signal the control board uses to adjust settings, restoring smooth, accurate response when a worn or erratic control causes inconsistent operation.

• Translates knob rotation into a variable-resistance signal for the electronic control
• Enables the control board to regulate power/heat or speed, depending on model
• Common failure symptoms: unresponsive or jumpy settings, dead spots when turning, or settings that drift
• Helps restore precise, repeatable adjustments at the knob

• Disconnect power to the appliance before servicing
• Pull off the knob and open the control panel to access the potentiometer
• Move wires one at a time to the new part; align the shaft/flat to the knob as noted
• Reassemble and test full range of adjustment; follow any model-specific calibration if required

This door switch detects when the door is fully closed and latched. Replacing a worn or stuck switch restores safe, consistent start/stop behavior and ensures the unit only runs with the door securely shut. What it does:

• Senses door position and signals the control to enable/disable operation
• Prevents the appliance from running with the door open
• Resolves issues such as: won't start despite power, stops when the door is jostled, "close door" message, or needing to press on the door to run
• Helps restore reliable cycle start and proper safety interlock function

• 1 door switch

• Disconnect power at the breaker before servicing
• Access the switch behind the door panel or latch area; note wire locations or take a photo
• Move wire connectors to the new switch one at a time; ensure terminals are fully seated
• Reassemble and test door closure and operation before returning to service

Replacement potentiometer that restores precise control of appliance settings by regulating resistance in the control circuit. Use it when a rotary control is unresponsive or produces inconsistent settings for reliable operation. What it does:

• Varies electrical resistance to adjust settings controlled by the knob (e.g., temperature, speed, or level)
• Replaces a worn or faulty rotary control that causes unresponsive or erratic behavior
• Helps restore smooth, predictable adjustment when the original control no longer responds properly
• Fits into the existing control assembly to restore user input accuracy

• Disconnect power to the appliance before starting any repair to avoid shock or injury
• Access the control panel or module to remove the old potentiometer; note knob/shaft orientation and wiring
• Match wire connections and mounting position of the replacement part; test operation before reassembling the panel

This push-button switch controls electrical power or function circuits in compatible Bosch appliances, restoring user input and on/off control when the original switch fails. What it does:

• Opens or closes the appliance's electrical circuit when pressed to enable a given function
• Commonly used where a user-operated control needs a durable, tactile interface
• Resolves symptoms like an unresponsive control panel, intermittent operation, or functions that won't toggle on
• Replaces a worn or non-clicking switch to restore reliable button response

• One replacement push-button switch

• Disconnect power to the appliance before servicing to prevent shock
• Verify correct terminal connections and orientation before final assembly
• Use basic hand tools; avoid forcing connectors to prevent damage