Worcester Bosch usually, there are two different types of electrodes ignition electrodes and flame-sensing electrodes. The spark electrode is responsible for causing the spark that starts off combustion within the burner The flame sensing electrodes are responsible for.
Fits a number of worcester appliances
Technical specification
Manufacturer Model No87161202290Brand NameWorcester BoschCompatible With24CDI BSN NG Combi, 24CDI FSN NG Combi, 24CDI FSP LPG Combi,24CDI OSN NG Combi and 24CDI OSP LPG Combi