Zoinks! Refrigerator compressor or slow toilet leak... my guesses.
The Hot Pepper
SumOfMyBits
SumOfMyBits
Unless you only hear it near your computer. In that case, I'm guessing a hard drive is fixin' to crap out on you. Backup your important stuff if you haven't already.
Pepperjack91
I'm thinking its a mini fridge. Going to unplug it and find out. Its coming from an area where it could be that or the heater. But I turned the heater off and i still hear it
Pepperjack91
We may have a winner. The fridge was plugged in but not cold anymore.
texas blues
Whatever it is it sounds like its gonna' cost thousands of dollah's to fix.