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 part fixes the following symptomsDoesn't shut off00189008 (AP2821597) replaces 00411414, 1028579, 14-33-936, 189008, 411414, AH3440440, EA3440440, PS3440440, PS8698334.