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BG 330 boiler - CH on when should be off?

I've got a BG 330 bolier with a UP2 controller and room thermostat. The central heating appears to be on full blast, despite the timer being off and the room thermostat being set to minimum. ANy ideas?
Richard, December 2008
the boiler will still run on the hot water program and cylinder stat.

sloppytom, December 2008