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One of 3 2 lamp fluorescent fixture in the garage stopped working.
I checked it out and it's one of those instant start series connected setups but with only 4 wires from the ballast. Two input wires and the other 2 ( red , blue) are connected to each tube at one end and at the other end the tombstones are just connected together. All 4 Tombstones are shunted ones. So its definitely a series connection . I think the ballast is shot because replacement tubes don't light up. I tested the continuity between the red and blue wires and it is open , but maybe there are capacitors in series so it will measure open . I don't dare check the voltage at it could be quite high to start the series tubes from cold. Is there an alternative way to test the ballast ?
The ballast is :
ACCUPRO AP-RS-232IS-120 , the equiv is Keystone KTEB-232-UV-IS-N-P T8 Instant Start Electronic Ballast
Suggestions?
Maybe I should just replace the whole thing with a LED version.
I checked it out and it's one of those instant start series connected setups but with only 4 wires from the ballast. Two input wires and the other 2 ( red , blue) are connected to each tube at one end and at the other end the tombstones are just connected together. All 4 Tombstones are shunted ones. So its definitely a series connection . I think the ballast is shot because replacement tubes don't light up. I tested the continuity between the red and blue wires and it is open , but maybe there are capacitors in series so it will measure open . I don't dare check the voltage at it could be quite high to start the series tubes from cold. Is there an alternative way to test the ballast ?
The ballast is :
ACCUPRO AP-RS-232IS-120 , the equiv is Keystone KTEB-232-UV-IS-N-P T8 Instant Start Electronic Ballast
Suggestions?
Maybe I should just replace the whole thing with a LED version.