Valliant VRT 350f night / day settings help

[LCooper]

Hello
I've recently moved into a house with a Valliant VRT 350f.
It is showing night mode (moon symbol) on Auto and a desired temperature of 15 even though it is day and my desired day temperature is 19.5.
The date and time were wrong, but I've just managed to set these correctly and assumed that would resolve the issue, but it hasn't.
The previous residents have 2 x time programmes in the system.
Could this be causing the issue?
I just want to set it up with a day and a night desired temperature and let it do the rest unless I'm away.
Any help is gratefully appreciated.
Many thanks
Lucy

 

[Deleted member 120897]

Is the required temperature higher than the room temperature? If it’s not, it won’t work.

 

[Francesca K N F]

Is the required temperature higher than the room temperature? If it’s not, it won’t work.

I don't understand how to reply to the initial question but I had the same query and here's your answer. It shows the moon when you're heating is off - ie it's assuming that when you're heating is off your desired temperature is the Night set-back (ie moon) one. The image at the top of p25 of this manual will help:

https://www.vaillant.co.uk/downloads/aproducts/controls/vrt-350-f/vrt-350f-operating-instructions-0020131979-00-418485.pdf