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Happy New Year everyone and good luck with all your plumbing adventures.
Regular visitors to this forum will know that I have an unhealthy obsession with monitoring my boiler's ebus. I noticed recently that the modulation during the CH on periods has a weird instability that has been getting gradually worse. The boiler is 13 years old and recently had new flow and return NTC sensors fitted. Any guesses as to what may be causing this? Control board? The graph shows HW period followed by CH period.
Mike
Regular visitors to this forum will know that I have an unhealthy obsession with monitoring my boiler's ebus. I noticed recently that the modulation during the CH on periods has a weird instability that has been getting gradually worse. The boiler is 13 years old and recently had new flow and return NTC sensors fitted. Any guesses as to what may be causing this? Control board? The graph shows HW period followed by CH period.
Mike