Weird 12V question for you electric gurus...
I'm hoping you guys will be able to troubleshoot this for me as I am totally baffled... Background: -In our former TV cabinet, we had a 12V outlet on the same plate as the coax jack. It didn't wor...
Forum Discussion
Sounds like your fuse wasn't completely blown open but had a very high resistance. You probably used a digital multimeter which has a very high impedance. Since it didn't put any load on the circuit your meter read some voltage. Next time either use an analog meter or as was suggested a 12V test light to "load" the circuit to get an accurate reading.
Are you saying that after replacing the fuse the voltage still reads 6 volts? If so then there is a high resistance between the fuse and the point that you are checking. Take a 12V incandescent bulb and put it across the wiring and at the same time check the voltage reading. If it's a high resistance the voltage should now be lower than before due to the increased load of the incandescent over the LED. Then check the wiring connections between the breaker and the lamp. You probably have a loose connection. A loose connection can have a higher resistance. This higher resistance drops more of the supply voltage therefore you are not getting the full 12V at the light.
Are you saying that after replacing the fuse the voltage still reads 6 volts? If so then there is a high resistance between the fuse and the point that you are checking. Take a 12V incandescent bulb and put it across the wiring and at the same time check the voltage reading. If it's a high resistance the voltage should now be lower than before due to the increased load of the incandescent over the LED. Then check the wiring connections between the breaker and the lamp. You probably have a loose connection. A loose connection can have a higher resistance. This higher resistance drops more of the supply voltage therefore you are not getting the full 12V at the light.
