Hi,
In trying to fix the control PCB for my boiler, I reverse engineered a schematic that then showed me where the fault was. I now share this in the hope that it may now help others.
Note: This is a FULL circuit diagram and INCLUDEs components NOT FITTED (N/F) to the PCB - for this I have made an educated guess as to what these components are (not that it matters of course).
NOTE!
Resistors: R1, R3, R18, R19, R13, R12, R32, R30, R36, R37, R11 & R6 are all 4K7 (if otherwise marked differently).
My version of the PCB:
3D rendering of my copy of the PCB
3D rendering WITH non-fitted comps:
Hopefully it's all correct but DO NOT assume that it is of course.
Cheers,
Andy
In trying to fix the control PCB for my boiler, I reverse engineered a schematic that then showed me where the fault was. I now share this in the hope that it may now help others.
Note: This is a FULL circuit diagram and INCLUDEs components NOT FITTED (N/F) to the PCB - for this I have made an educated guess as to what these components are (not that it matters of course).
NOTE!
Resistors: R1, R3, R18, R19, R13, R12, R32, R30, R36, R37, R11 & R6 are all 4K7 (if otherwise marked differently).
My version of the PCB:
3D rendering of my copy of the PCB
3D rendering WITH non-fitted comps:
Hopefully it's all correct but DO NOT assume that it is of course.
Cheers,
Andy