Moved into our house back in July and just switched on the heating to see if it all works ok, all the rads heating up fine, so I left the rads switched on on their individual valve thermostats, and turned the heating off on the boiler control panel (Danfoss FP715), when the boiler came on the following morning to heat the water the rads also heated up, although the heating was switched off on the boiler control panel. Anybody any idea as to whats going on and is it easy to sort out.