Power Supply Switch Won't Turn Off

[Zion Steiner]

Recently, the on/off switch on my power supply will not properly switch to the off position. It feels normal in the on position, but when switched off it readily flips back on and never really "sits" in the off setting. When the computer is on and the switch is flipped off, the PC does not power down either. What is the issue?

 

[elicummings1]

Could just be the switch is broken.