Reading other posts regarding the issue and did some more checks. Air seems to be blowing out the passenger and driver side floor vents equally and you can adjust the temperature up or down.
However if you select cabin vents the air continues to blow out the floor vents. I opened the glove box and when you select either floor or cabin vents, you can hear a noise similar to a needle scratching across a vinyl record. Suggestions on this forum is that it may be the actuator gear
, which is a small plastic gear, has broken. Apparently this can be changed without having to remove the dashboard, however not sure if we can get the part. Any ideas on how to access it would be welcome. Thanks.