Help with Cathedral Ceiling and Ceiling fan question...?

Our contemporary house has a cathedral ceiling over the main living space and a huge ceiling fan. When we bought the home, the fan is set for the winter direction, pulling the air up. There does not appear to be a switch to change the direction to push the air down nor is there a remote control. Does anyone know how to change the direction if there is no visible switch or remote. Or should we leave as is, and put the fan on high. which would not create a breeze but would circulate the air. We have the central air on, and am debating whether the fan could help my electric bills or make it worse by pushing the warm air that has floated to the ceiling bk down again???? Thank you for your advice.