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hey I noticed that my combi boiler was on .5 bar so went to top up the pressure like I normally have before but nothing happens. usually I hear the water running through the pipes but this time I can't hear nothing and the pressure doesn't rise. the only thing that I can think of is that I...

Just wondering how to replace a honeywell bdr91 with a hive 2 receiver The boiler i have is a viessmann vitodens 100 Heres my current honeywell wiring 20161227_121343 by Lee42534 posted 27 Dec 2016 at 4:31 PM Does anyone know what wires go where on the hive receiver from what ive found out...