Upon arrival system was not running however there were no error codes recorded. Upon further inspection found W wire disconnected . Hooked up W wire and verified all other thermostat connections to ensure proper wiring. Set thermostat to celsius. Tested furnace, working well with no issues. RA temp 13c SA temp 46.5c Furnace is heating the home well after fixing wiring issue, will take some time to heat the home due to how cold it is