chEnvFanAdmin 1.3.6.1.4.1.52.4.1.1.8.1.12.1.3

This object is used to select the operational mode of the fan. If the value is set to 1 (auto) then fan speed is based on temperature. If the value is set to 3 (testing) then value will return to it's previous value prior to being set at 3.