I have a < 1 year old 18 SEER Amana Heat Pump (this guy here: http://www.amana-hac.com/Home/Produc...5/Default.aspx ).
It was installed last year - end of January 2012.
For the past couple weeks after the defrost cycle it's been kicking back on with an insanely loud noise.
It wakes us up everytime this happens, which is about once an hour.
I just recorded it and posted it to youtube here (the grinding noise starts 20 seconds in):
It was nighttime so there's not much to see, but you can hear it clearly. Please can you guys take a listen and let me know if this is normal operation? My contractor seems to think there's no problem, but I can't imagine this incredibly loud noise is normal.
I really appreciate it.