Low Voltage indoor lighting short ? ( Nicor Low Voltage lighting 4" Cans MR-16) , New Panel. No Power Hooked up Yet.
Ok , Im testing a panel with my ohm meter before power get hooked up, I test the 15A breaker that has the low voltage light fixtures on this circuit. My Ohm Meter reads -0- when touching the breaker to ground bus at the panel. I did all the usual traces, and traced this error back to the 4" cans low voltage lighting. Ok, I thought maybe a conductor broke inside behind insulations. ( No)
I check this entire circuit, and still have the Zero reading. So I disconnected the transformer at each location and connected the 14/2 at these locations with a small jumper in place of the
transformer. I go down do the ohm test again. The circuit read infinity ( Ok ) . So I go back up and disconnect the low voltage fixture from the rest of the circuit and connect the transformer back on the circuit. Back to the panel again to test with and it reads. -0- again. I did this a few more times with each fixture and I still get the same reading from each low voltage fixture. Like it’s a short in the circuit. I never ran into a situation like this . I even put the MR16 lamp in to see if it would make a difference . ( no difference. )
Is this a normal reading -0- ( to the right of the scale ) on the ohm meter with the transformers on the circuit. But not power on.
Or are these transformers wired wrong from the factory.
Am I missing something here, Did I fall asleep again in class and miss this subject years ago?
I wired another room in this house with the same type fixtures and no problems. On that circuit.
Ok , Im testing a panel with my ohm meter before power get hooked up, I test the 15A breaker that has the low voltage light fixtures on this circuit. My Ohm Meter reads -0- when touching the breaker to ground bus at the panel. I did all the usual traces, and traced this error back to the 4" cans low voltage lighting. Ok, I thought maybe a conductor broke inside behind insulations. ( No)
I check this entire circuit, and still have the Zero reading. So I disconnected the transformer at each location and connected the 14/2 at these locations with a small jumper in place of the
transformer. I go down do the ohm test again. The circuit read infinity ( Ok ) . So I go back up and disconnect the low voltage fixture from the rest of the circuit and connect the transformer back on the circuit. Back to the panel again to test with and it reads. -0- again. I did this a few more times with each fixture and I still get the same reading from each low voltage fixture. Like it’s a short in the circuit. I never ran into a situation like this . I even put the MR16 lamp in to see if it would make a difference . ( no difference. )
Is this a normal reading -0- ( to the right of the scale ) on the ohm meter with the transformers on the circuit. But not power on.
Or are these transformers wired wrong from the factory.
Am I missing something here, Did I fall asleep again in class and miss this subject years ago?
I wired another room in this house with the same type fixtures and no problems. On that circuit.
