The Vaillant 0020153950 Ignition Electrode with Cable is a genuine replacement component engineered to deliver a reliable spark and detect flame presence in your ecoTEC Plus VU boiler. The ignition electrode produces the high-voltage spark needed to light the gas/air mixture, while its integrated cable ensures stable electrical connection to the boiler’s ignition system. Together with the flame detection function, it helps the control board confirm successful burner start-up and maintain safe combustion. A worn, fouled or damaged ignition electrode can lead to ignition difficulties, misfires or boiler lockouts, making replacement with the correct OEM part essential for dependable performance.

This ignition electrode with cable is compatible with Vaillant ecoTEC Plus VU series boilers that reference part number 0020153950 in their service documentation. To ensure correct fitment and reliable operation, always verify the part number on your existing electrode before installation, as ignition components and connection layouts vary between models.

Supplied ready for direct replacement, the 0020153950 Ignition Electrode with Cable installs into the burner assembly and connects to the boiler’s electrical harness without modification when fitted by a qualified engineer. Choosing this genuine Vaillant component helps restore reliable ignition, supports stable combustion and contributes to consistent heating and hot-water performance in compatible ecoTEC Plus VU boilers.