Grounding a ceiling fan with FMT conduit present
The FMT coming from the box should be grounded. You need to check this with a volt meter. Connect the FMT to a metal fan rated box with the appropriate connector. Then, with the power on, check the voltage from the fan rated box to the black wire from the FMT, you should get 120V+- if the box is grounded through the FMT. Turn power back off. Then take the two ground wires from the fan/bracket and attach them to the fan rated box. Connect the black and white from the FMT/box to the fan. Attach the fan to the box and you should be good to go.