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Customer Questions and Answers for Ignition Device (Spark Module) by Bosch

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Manufacturer Part
4.89 (64)
By: Bosch
Part Number: OEM17854308
Manufacturer Part Number: 12004873

This ignition device generates the high-voltage pulses that light your gas cooktop or rangetop surface burners. Replace a failed module to restore fast, dependable burner ignition when you turn the knob.

  • Supplies high-voltage spark to ignite the surface burners
  • Common symptoms include no click/no spark on any or multiple burners
  • Intermittent or weak sparking; burners require multiple tries to light
  • Can help restore consistent ignition performance after module failure
What's included: 1 ignition device Install notes:
  • Disconnect power and shut off gas before servicing
  • Access location varies by model; typically under the cooktop or behind a panel
  • Move wires from the old module to the new one one at a time to avoid miswiring
  • Inspect igniter electrodes, burner caps, and wiring; clean/replace if damaged for best results

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$140.39
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Questions & Answers

For Bosch Ignition Device (Spark Module) (Part Number: OEM17854308)

1 Answer

Frank, If you switch the ignitor wires on the spark module and it still won't spark then check for continuity on the spark switch for that specific valve that doesn't light when the knob is in the light position. If there is no continuity then the harness needs replaced not the module.

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1 Answer

Billy, with the gas and power supplies turned off, the burner heads, knobs, and burner top panel would need to be removed to access the ignition device. The cooktop may need to be lifted out of the counter to do this if the counter is only supporting the top burner panel.

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