Hello, I've got a APC Back-UPS XS 1500 VA - This one. I've noticed that the fan has been kicking on (never happened before) and every now and then it will let out a slight squealing noise.
Anyone know what this is and if I should be concerned?
Edit: It's just running between 16-25% load.
Anyone know what this is and if I should be concerned?
Edit: It's just running between 16-25% load.
