Problem with a Aqualight Pro 36

Leon12

New member
I just picked up a used Aqualight Pro 36 light for my 58 gallon. The light fires up fine but the metal halide light cuts off after several minutes and then cuts back on - repeats, etc. Any idea what the problem is?
 
3 likely possibilities, bad bulb, bad ballast, or bad ignitor. I'm no electrician, but I have changed all 3 before.

Start with bulb, then ballast finally ignitor.
 
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