The following spare parts are available for this model:
900375 - Lead To Suit Sigma Gas Valve,
201857 - Sigma Gas Valve,
2015 - Ignition Controller P16-Dia C/W Lead,
201632 - Fan Fixing Plate Gasket,
201488-1 - Gasket Set,
M200106-S - Rings To Suit Sigma Gas Valve,
202404 - NO LONGER AVAILABLE Gas Control Valve