whistle in ac

[orr83]

Just my first nav new d40 St when the ac is on recycle and fan is on high it gives a high pitch whistle like a handbrake is on.... anyone has heard this before? Or just get them to check when it's in for it's 1000km service

 

[nathand22]

any luck finding out what it is? maybe the pollen filter isnt sitting properly??

 

[ExHiluxOwner]

nathand22 is right about the pollen filter - i had the same thing in my 2010 ST a while ago after it was changed during a service. Nissan re-adjusted it at its next service and it was fine no more whistle

 

[grasshopper]

Spot on. I had the same thing from when the ute was serviced at 20K by SSM. I had found a screw that was not put back in also... I suspected it was from the Pollen filter housing... but could not be certain.
Nissan dealer serviced the ute at 40K and low n behold the noise was gone after replacing the Pollen Filter.