I have an LED light fixture with a 12V/18W power supply in it (an Eaglerise ELP18-12LS). The PS started overheating and switching off, so I looked inside if I could spot any obvious issues. Indeed, one of the output caps (a 330uF/16V part) was bulging, so I replaced it. But even after replacing the cap, the replacement cap (and the other original cap) keeps getting pretty warm (about 55C in 21C ambient).
The PS also makes a louder than normal buzzing sound. I've heard this type of hum from other switching power supplies, so by itself it wouldn't make me worry, but combined with the overheating issue it is concerning.
So my questions are:
1. Is it normal for the output caps to get this warm? If not, is there a potential easy fix?
2. Is there something I can do to reduce the buzz?
Thanks in advance!
The PS also makes a louder than normal buzzing sound. I've heard this type of hum from other switching power supplies, so by itself it wouldn't make me worry, but combined with the overheating issue it is concerning.
So my questions are:
1. Is it normal for the output caps to get this warm? If not, is there a potential easy fix?
2. Is there something I can do to reduce the buzz?
Thanks in advance!