Andrews Heater Electrodes
Usually, there are two types of electrode, Ignition electrodes and flame sensing electrodes. The Ignition electrode is responsible for creating the spark that begins combustion. The flame sensing electrodes are responsible for monitoring whether there is a flame present in the burner. This is an important safety device that makes sure the boiler isn't still supplying gas without a flame.
ANDREWS E877 HOT SURFACE IGNITOR
Part No: 1821519 / MPN: E877
ANDREWS E891 FLAME SENSOR GASKET
Part No: 1821532 / MPN: E891
ANDREWS 7683430 ELECTRODE
Part No: 1822096 / MPN: 7683430
ANDREWS G063 ELECTRODE GASKET
Part No: 1821740 / MPN: G063
ANDREWS E890 FLAME SENSOR
Part No: 1821531 / MPN: E890