GLOWWORM ULTRACOM / FLEXICOM - MAIN PCB - 0020023825, 20023825.
Used working - taken from working system
Will fit: Glowworm Flexicom 24CX Boiler
Glowworm Flexicom 30CX Boiler
Glowworm Flexicom 35CX Boiler
Glowworm Flexicom 18SX Boiler
Glowworm Flexicom 30SX Boiler