View Full Version : Question about an older Hamilton magnetic ballast (175 watt)

04/04/2012, 01:13 PM
I don't know how long this ballast has been in service, I got it used and it's been running flawlessly on my tank for almost 3 years now, but recently is starting to make more noise than usual. The "humming" sound seems to have gotten louder. Is there anything I can do to fix this? Does it need to be taken apart and cleaned? I'm guessing there's a cooling fan inside, perhaps it's full of lint? Here's a picture of the ballast to give you an idea of what I'm talking about. Any information you can provide would be great. Thank you. :)


04/05/2012, 10:59 AM

04/05/2012, 11:51 AM
Heat and noise from magnetic ballast is wasted energy. Time to buy a new one.

04/05/2012, 12:00 PM
If I had the money I would, but I don't, so I can't. The 4 bald tires on my car takes precedence. Besides, it works fine, it's just the "humming" sound that's becoming annoying. I'd much rather just fix it. Thanks. :)