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Given what you've said. I know myself around wiring, but not to an expert way. Very odd. I've just clipped the thermostat front into the wall mounting and it is now controlling the boiler again!!! How exciting. Sort of fixed. Is it possible that it's become faulty? After all, we've had it 10...

[/url] Doh.. Sometimes the simplest answer is the one I've overlooked. I'll ping them an email now... Any thoughts over the thermostat wiring? I'm gradually building up my knowledge. Apparently all it's doing is completing the circuit, in order to allow/disable the boiler. I get that. I...

Hi, Can anyone identify this Valliant boiler type (see picture). I would like to get the manual in order to check the programming of it. There is no hint as to a model number. I've searched around, but everything I find seems to have a digital control, where as this has a manual timer. I'm...

Boiler