v4073a

Moved into a new house and the heating is some what antiquated, I'm planning on changing the controller over to a Hive system but before I do I want to make sure its working correctly is the heating is.. pants and the kitchen Rad does not work but that another story. The issue I have is the...

First time poster long time lurker So recently I have noticed that when we have our programmer switched to do Hot Water only the radiators also get warm despite Central heating set to off and thermostat set to lowest. If we want central heating only or both HW/CH that also works ok. After some...