Replacement ballast question


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Old 12-12-15, 07:52 PM
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Replacement ballast question

Magnetic ballast(advance sm-2E75-s-1-TP) failed. It is in a all metal shop and fixture uses two F96T12 lamps. Picked up a Philips Advance Centium(ICN-2P60-SC) replacement electronic ballast to replace it.

Fixture lamp holders on one end have two black wires to one holder, and two white wires to the other lamp holder. The opposite end has one red wire from one holder and one blue wire to other lamp holder.

Wiring diagram on ballast shows white and black wires going to corresponding white and black power input wires(line), which I have done. It shows one blue wire going to one lamp holder, which I connected to the two black wires. It shows the other blue wire going to the other lamp holder on same end, which I connected to the two white wires. It then shows one red wire from ballast going to other end of light connected to both the light holder wires(red+blue), which I have done.

Turned on breaker and flipped light switch-and nothing. Completely reversed all connections leaving input wires the same, and nothing. So what have I done wrong? The line voltage wires are in conduit in an all metal shop, so I don't think there should be a ground issue. Any help appreciated.
 
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Old 12-12-15, 10:08 PM
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It would appear you connected the ballast correctly per the published wiring diagram. That would leave a defective ballast or missing 120v at power wiring.

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Old 12-13-15, 02:42 PM
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Thanks for the info. I went back this morning and tested input voltage which was good. Then checked wires from ballast and one blue wire had no voltage. Replaced new ballast with another new one and WALLA!! Just never expected new ballast to be defective. Guess I have to have more confidence in my electrical abilities. Thanks again.
 
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Old 12-13-15, 02:46 PM
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never expected new ballast to be defective
Do it everyday and you will expect it. There are also nefarious people who buy a new part and return the old one as if it was the new part to get a refund.
 
 

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