Siemens RDE10 help

[BLZ]

I have just moved into a new house, it has a heatslave 15/19boiler (with timer settings) along with a Siemens RDE10

If i set the Siemens RDE10 for day and time and what time it is to come on etc at, it doesnt.

Currently i have the boiler timer set to automatic and when the heating is due to come on the siemens comes on and i have to manually increase the temp in the room, as i cant seem to get the temp set for time it is due to come on..

Any insight into these systems would be so helpful, Many Thanks

 

[Armo74]

Are you saying that you have to turn the room thermostat up to get the boiler to fire?

 

[BLZ]

Are you saying that you have to turn the room thermostat up to get the boiler to fire?

I have tried to set the temp up but it doesn't stay on the system. When the boiler goes off it turns the Siemens off to which resets everything i have put in.

Currently when the heating goes on, the siemens starts off at 00:00 and day 1