The Vaillant are usually two different types of electrodes is ignition electrodes and flame-sensing electrodes. The ignition of the spark electrode causes the spark that starts the flame within the burner The flame-sensing electrodes are responsible for ensuring.
Fits a large number of Vaillant appliances
Technical specification
Manufacturer Model No090915Brand NameVaillantCompatible WithThermocompact 615 E (2001-2002), Thermocompact 615 E (2000-2001), Thermocompact 620 E (2001-2002), Thermocompact 620 E (2000-2001) and Thermocompact 624 E (2001-2002)