Richard WeedonMar 271 min readVaillant TurboMax Faulty PCB or Control panel. Boiler QuickiesVaillant TurboMax, If you display is not working it could be the Main PCB or the small control panel, this is how to test it with a multimeter0 views0 commentsPost not marked as liked
Vaillant TurboMax, If you display is not working it could be the Main PCB or the small control panel, this is how to test it with a multimeter