Carrier XHB123D X/Y Series Heat/Cool BTU 12000/11600 Air Conditioner
Problem for Carrier XHB123D X/Y Series Heat/Cool BTU 12000/11600 Air...

I have a carrier hrv model va3bab015000 and i am




By rcw7 on Nov 08, 2009

" "
i have a carrier hrv model va3bab015000 and i am getting a knocking noise when unit is running

Solution #1

posted on Nov 12, 2009
Not Rated)

heatman101

Rank: Guru  Air Conditioners  Expert
Rating: 94%, 141 votes
The blower wheel is either very dirty or just out of balance. The unit probably needs a very good cleaning
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