RED Heat Pump User Discussion

[BHAlloy]

Looking to form a sort of user group for installers and users of RED Heat Pumps with, or without the associated Heatream Hot water cylinder 

[Ali Quarg]

During the recent cold spell when temperatures got to -8 locally, the RED temperature reading failed to get below 0 degrees. Is this a software issue or a fault and how/does it affect weather compensation?