Parts for Thermador PRD304EHC/01: Pcb's Assy Parts

The Re-Ignition Spark Module is an OEM replacement part Bosch ranges. It is an electronic component that generates sparks to reliably light the burners on a gas cooktop. Consistent sparking is necessary for fully lighting the burner flames and facilitating safe and efficient cooking operation.

Causes of a bad spark module can include normal component wear over time or damage from exposure to moisture or other contaminants. Improper cleaning methods could potentially impact performance.  

Symptoms of a bad spark module include:

• Burners not lighting or sparking when the knob is turned 
• Unreliable or intermittent lighting requiring multiple attempts
• Burner flames that emit an inconsistent or unstable pattern
• Sparks appearing outside of the burner ring pose a safety risk

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

This transformer supplies the low-voltage power needed for an oven's interior lights so bulbs operate reliably. It restores proper lighting and helps stop flicker or complete loss of oven lamp function. What it does:

• Converts the oven's supply to the low-voltage output required by interior lamp circuits.
• Restores steady lamp operation when lights fail to come on or flicker.
• Works with the oven's light switch and control circuitry to deliver consistent voltage.
• Helps prevent false diagnostics caused by intermittent lamp power.

• One oven light transformer.

• Disconnect all power to the appliance before starting any repair.
• Accessible behind the control panel or chassis; remove panels carefully to reach the transformer.
• Note wire locations and secure all connectors; use proper wire connectors and strain relief.

This electronic PC board is the appliance's main control, processing inputs and directing power to components so cycles run correctly. Replacing a failed board can restore normal operation when the unit is dead, won't start, or stops mid-cycle.

• Interprets user inputs and sensor feedback to execute programmed cycles
• Switches relays to power motors, valves, heaters, and other loads as required
• Manages timing, temperature, and safety logic for consistent performance
• Typical failure symptoms: no power/won't start, unresponsive or erratic controls, cycles ending prematurely, recurring error codes

• Disconnect power before servicing; verify power is off with a meter
• Use ESD protection; handle the board by the edges to avoid static damage
• Move connectors one at a time to identical positions on the new board to prevent miswiring
• Some models require service-mode setup or calibration after installation—follow your model's service documentation

This OEM replacement pin is a small hardware fastener used to secure or pivot mating components within the appliance. Replacing a worn or missing pin restores proper alignment and reliable movement of the affected part or linkage.

• Serves as an axle/retainer for hinges, brackets, or linkages
• Maintains alignment of moving parts to reduce wobble or binding
• When bent, worn, or missing, you may notice looseness, rattling, misalignment, or difficulty opening/closing related components
• Direct-fit OEM replacement for the specified application

• Disconnect electrical power and shut off water or gas before servicing
• Support the component being serviced to prevent strain or damage during removal/installation
• Note the original orientation and retain any washers, clips, or spacers for transfer to the new pin
• Inspect mating holes/bushings; replace related worn parts to ensure proper fit and operation

This cable harness routes power and signals between key components to restore reliable electrical connections and normal appliance operation. Replace a damaged harness to fix intermittent power, control failures, or non-responsive functions. What it does:

• Provides the multi-conductor wiring path that links control boards, sensors, and motors
• Carries low-voltage signals and/or line power needed for normal appliance functions
• Commonly replaced when wires or connectors are damaged, burned, or corroded
• Can resolve symptoms such as intermittent operation, no power to components, or control errors

• Disconnect all power before accessing wiring or controls to avoid shock
• Route harness along original clips and channels to prevent pinching or chafing
• Inspect connectors for damage and replace if terminals are loose or burned

This ignition cable connects the stove's spark electrode to the ignition system so burners ignite reliably. It replaces a damaged or degraded lead to restore spark delivery and consistent lighting. What it does:

• Transfers ignition voltage from the module to the burner electrode so sparks form at the burner
• Helps stop intermittent or no-spark symptoms when the wire is cracked or corroded
• Prevents arcing caused by insulation damage or improper routing
• Restores normal ignition behavior when the original cable is worn or burned

• One ignition cable

• Disconnect power and turn off gas supply before starting any service
• Inspect routing and connectors; replace only if the wire or insulation is damaged
• Keep the cable away from high-heat areas and sharp edges to prevent future damage