A replacement Worcester Bosch electrode for use in Greenstar and Greenstar ErP boilers. An ignition (spark) electrode causes the spark that begins combustion within the burner while flame sensing electrodes are responsible for checking if there is a flame present in the burner to make sure that the boiler doesn't keep supplying gas without a flame.
Worcester Electrodes 87161163810 - replaces part no 87181070870
Compatible with the following boilers: GREENSTAR 12RI FON-GB NG - 7716130137, GREENSTAR 24RI FON-GB NG - 7716130138, GREENSTAR 25SI COMBI NG - 7716130139, GREENSTAR 30 SI COMBI NG - 7716130140, GREENSTAR 24I JUNIOR COMBI NG - 7716130141, GREENSTAR 28I JUNIOR COMBI NG - 7716130142, GREENSTAR 12I SYSTEM NG - 7716130143, GREENSTAR 24I SYSTEM NG - 7716130144, GREENSTAR 30SI LPG - 7716130145, GREENSTAR 25SI LPG - 7716130146, GREENSTAR 28I JUNIOR COMBI LPG - 7716130147, GREENSTAR 24I JUNIOR COMBI LPG - 7716130148, GREENSTAR 24I SYSTEM LPG - 7716130149, GREENSTAR 12I SYSTEM LPG - 7716130150, GREENSTAR 12RI FSP-GB LPG - 7716130151, GREENSTAR 24RI FSP-GB LPG - 7716130152, GREENSTAR 15RI CONVENTIONAL NG - 7716130153, GREENSTAR 15RI CONVENTIONAL LPG - 7716130154, GREENSTAR 18RI CONVENTIONAL NG - 7716130155, GREENSTAR 18RI CONVENTIONAL LPG - 7716130156, GREENSTAR 15I SYSTEM NG - 7716130168, GREENSTAR 15I SYSTEM LPG - 7716130169, GREENSTAR 18I SYSTEM NG - 7716130170 & GREENSTAR 18I SYSTEM LPG - 7716130171.
