Razer blade 15 left fan ramping up every few seconds under idle

Razer blade 15, left fan ramping up and stopping every few seconds under idle. Its been working fine for the 2ish years I've owned it. I've noticed a slightly louder fan noise like a small vibration over the past few months but thought nothing of it. Bought it new from bestbuy. yesterday was playing some FFXIV, was working fine. Today I turn it on and a few seconds later the left fan starts ramping up and stopping, and sometime completely stops. The right fan is working flawlessly, and the computer is running and is as smooth as usual. Except the annoying left fan that buzzes as it ramps up to 100% and stops repeating itself over and over. If it was stuck at 100% I would be less concerned than it ramping and stopping. Tbh I dont even want to turn the thing on without some idea of what's happening.