HR92 Gone Rogue?

[djjag1]

Hello All, I've had my Evohome system set up for a year now and absolutely love it. Other than a couple of minor issues with the controller time sticking occasionally its been trouble free and certainly saved a fortune in gas.
Just recently though I've noticed that one of my zones has been randomly set to temperatures other than the schedule temp about three times. The other day it set itself to 35 degrees, and this morning after I'd left for work it was set to 19 degrees. My girlfriend has said she's not touched it, so I can only assume the HR92 has gone rogue and is randomly changing itself. Has anyone had this issue and is there a simple fix? I'm going to try a reset & battery change, but just wondered if this is a thing?

Thanks

[Richard]

No its not a thing, but suggest contacting Honeywell Home once you have done the things you propose and it carries on... Their support number is 0300 1301299.