Parts for Thermador PRD304EHC/04: Pcb's Assy Parts

The Re-Ignition Spark Module is an OEM replacement part for 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 models.

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