Whine from heater

[ub7rm]

Hello,

I have a 65 plate GTD and there is an annoying which from the glovebox area.  I'm not sure if it varies much with heater speed, but it does seem to vary a bit with engine speed.  Switching the HVAC system off gets rid of it completely.  Has anyone had this before / can offer any assistance?

[mcmaddy]

Have you checked the duct on the glove box? Small round dial which puts cool air into box. Check to see if it's open it closed, failing that maybe a hose has sprung lose behind the dash.