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-   -   Anyone know how to troubleshoot MH ballast? Calgary (http://www.canreef.com/vbulletin/showthread.php?t=92697)

SoloSK71 12-18-2012 11:59 PM

Anyone know how to troubleshoot MH ballast? Calgary
 
Stopped working, not much electronic knowledge so if anyone can offer help it would be greatly appreciated ...

Charles

ocean diver 12-19-2012 12:02 AM

I can help....pack it in a box and put at the curb and call it a sign to buy a LED Light Sorry lol had too............

SoloSK71 12-19-2012 12:08 AM

If an LED fixture was not $500 ...

Charles

Reef_Geek 12-19-2012 12:22 AM

Is this the one that you bought from me?

I did not have any issues with it running from June to Sept before I upgraded. But there is a knob on the ballast that says fuse. I've never opened this but presume you could unscrew it and inspect. Hopefully the fuse just burned out and you can see the filament is not intact (like an incandescent light bulb).

Hope this helps.

SoloSK71 12-19-2012 12:47 AM

Yeah, it is the one I got from you :(

Sadly the fuse is intact, and from what little Google-Fu I have been able to summon, it is either the light switch, the capacitor (I don't even know what that is!) or the transformer ... bleh ...

Charles

Delphinus 12-19-2012 01:27 AM

What kind of ballast?

Reef_Geek 12-19-2012 01:30 AM

it's a jbj viper k2 250watt

Delphinus 12-19-2012 01:40 AM

I'm not familiar specifically with that model but after googling it I found a page that claims it is a cap and coil style ballast and not electronic. In which case you should be able to open it up and replace components if need be, but you'd have to look up the part #'s and order from a place like Litemore, BriteLite, Calgary Lighting Products, or Westburne, or some place like that.

For a double-ended 250w halide it will be an ANSI M80 ballast and the bad news is that I think these are not made anymore. However I'll explain what I know anyhow. There are three components: the transformer (the "coil"), the capacitor (the "cap", looks like a tin can) and then pulse-start ballasts (of which M80 would be) have a 3rd component, the ignitor, which looks like a smaller cap usually. Sometimes, it is the capacitor and sometimes it is the ignitor when they go, but unfortunately unless you are an electrician, diagnosing the errant component involves trial-and-error replacing until it starts working.

Having said all that, however .....

Double-ended halide lamps are notoriously finicky. Have you confirmed that it isn't the lamp? Because dollars to donuts, I bet it is the lamp. If you try another it might just fire up. When I ran these lamps myself I had some fail as early as 6 months in and they wouldn't even turn on.

reef-keeper 12-19-2012 03:00 AM

In my experience time to replace the ballast assembly.

SoloSK71 12-19-2012 04:01 AM

I do have another lamp I can check yes, once the daystar shined again ...

Charles


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