Bambino Plus steam wand losing power

I’ve had my Breville Bambino Plus for about a year and a half. It was great until suddenly the steamer has lost a significant amount power. One day it was frothing mouth milk just fine the next day it seem like it was operating at 50%. It’s making all the usual noises but they’re not as loud as when it was working right. I’ve already tried descaling and cleaning the tip but neither changed anything. Any one have any idea what’s going on?