Airsense 10 repair

My Airsense 10 makes noises after it ramps up. I'm told it only has a 1 year warrantee. Mine is 4 years old.

Anyone else getting a whirling noise after the pressure ramps up?

Your old, noisy machine could continue to function for a while;
but it might be smart to look for a replacement before then.
My old machine was getting a bit noisy at 5 + years, so I retired it.
Resmed machines tend to be more reliable than others.
A very dirty filter can put strain on the blower motor.
Look at it--and replace if it is grubby.