I just came home from a weekend away. the boiler has error code E37. the water pressure is too low. the manual is useless, DP is away and me and ds are freezing. I will try to upload a pic of the system. I know I need to turn a tap until the pressure increases to between 1 and 2 but I don't know which one!
HEEEEEEEELP MEEEEEE!!!!!!!
TIA!!!!
