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This is a Logic Heat H15 - GC: 41-150-78. The PCB is really the one shown, as can be seen here: https://www.idealparts.com/pub/media/diagrams/a/1/a106-d-controls.jpeg and here: https://www.heatingspareparts.com/boiler-diagrams/ideal/logic-spc-heat-spc-h-spc-15/-/41-min-750-min-78 The website you...

Thanks, that is a possible concern. But the manual suggests that the PCB should be configured (selecting the model and size) at startup when fitting it in. But it is not letting us do so. So I wanted to know if somebody had suggestions on how we could do that. This is the PCB...

I cannot be 100% sure, but the original and replacement boards are visibly the same and all the id numbers (that is 6 different muli-digits codes on both) match, except for one, which seems related to the manufacturing. The procedure to configure the PCB is then explained in the boiler manual...

Thanks for the pointer, we heard about these, but it does not seem applicable to this model: there is no mention in the manual, while it appears in manuals for other models.

Thanks, my plumber is involved, but we hit this roadbloack and I am trying to find a solution for us to progress with the fault finding.

Hello, I am trying to get my Ideal Logic Heat H15 repaired. There have been various faults appearing, with most of them pointing to the PCB (KM821 I2). It has been decided that the best option is to try replacing the PCB and using a refurbished part initially for testing. The PCB used on the...