The printed circuit boards product code MCB3000, main PCB for the FEB24ED and FEB24ED3*, and the MCB3005, display PCB for same boilers, are now supplied and packaged together. The main PCB on its own is no longer available. This PCB also fits the FEB24HE. PLEASE NOTE: For fault F5, an engineer should be contacted to reconfigure the PCB in the first instance, if F5 keeps occurring, both the main and display PCB must be changed at the same time..
