I have an F-100 Glowworm boiler and am have trouble finding an ignition lead that works Regin supplied me with 2 leads which did not work. They are different from the manufacturer's parts i.e. they can be fitted anyway, whereas the manufacturer's part can only be fitted one way, clear end to the ignition lead. Does anyone know where I can get the correct part from?

Gar Foster, December 2020