Thanks for your swift replies and advice all.
Yes, in a way I am fortunate that the it has stopped working while the system was turned on. I was able to just turn up the thermostat this morning to turn the boiler/rads back on. I dare not attempt to press the reset button, just in case I...
Hi All,
It just had to happen during a cold spell on a Saturday night....just my luck!
Went to turn off the heating and hot water via the Danfoss Randell CP715 Si programmer in my house and found the LCD display not visible at all. Pressed the usual buttons to turn off, with no response...