I got a Evolution Extreme installed and every time the unit turns off it makes an insanely loud noise. Like wake you up loud, both indoors and outdoors. It sounds like gears grinding to a halt but the installer said it's a known issue with all Evolution Extreme's and it's from the mixing of the coolant or such.
Is this normal?
Is this normal?
source https://hvac-talk.com/vbb/threads/2238728-Evolution-Extreme-Sound-Loud?goto=newpost
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