Thanks guys, the selection switches were our (my dad is the 'doer' I'm the fetcher and coffee maker) next point of attack. I had questioned why the Flow / DHW Pump never shut down (or at least the LED's didn't) Is that a symptom of a stuck flow switch? or perhaps the Switches. Either way might...
Hi All,
Just hoping someone might have an idea on this. The boiler is running fine in terms of hot water but stopped running the Central Heating when called for from the Hive (It's sending a Live feed to the boiler from the Hive so thats all good.) We thought it might have been a PCB problem so...