Why is my light not working after a fuse tripped?
Why is my light not working after a fuse tripped?
Simple fix – the light you turned on when it tripped is probably the problem. Either in the switch or in the light. Is it a metal switch or metal fitting rather than a plastic white switch and pendant?
What should all fuses make test light?
If the ignition switch is ON but the engine is not running, all the fuses should read about 12V or the test light should glow. The switch to turn things on is downstream of the battery and the fuse. Tail lights should be connected around the ignition switch directly to the battery so they can be turned on without the ignition being on.
How to check if a fuse is OK?
Start at the CU by checking all terminations then with a voltage indicator start at the fuse/MCB and check at all fittings on the affected circuit. MCB or previously loose connection somewhere between MCB and failed lamp now open circuit. if MCB is ok check continuity of L-L, N-N and E-E between CU and light fittings
Can a fuse be removed if there is no power?
If you use an ohmmeter, you can get false readings if there is any power in the circuit. In other words, only use an ohmmeter if there is no power on anywhere. You can remove the fuse and then check it with the ohmmeter. It depends on where the fuse is located in the circuit.
Simple fix – the light you turned on when it tripped is probably the problem. Either in the switch or in the light. Is it a metal switch or metal fitting rather than a plastic white switch and pendant?
Start at the CU by checking all terminations then with a voltage indicator start at the fuse/MCB and check at all fittings on the affected circuit. MCB or previously loose connection somewhere between MCB and failed lamp now open circuit. if MCB is ok check continuity of L-L, N-N and E-E between CU and light fittings
If the ignition switch is ON but the engine is not running, all the fuses should read about 12V or the test light should glow. The switch to turn things on is downstream of the battery and the fuse. Tail lights should be connected around the ignition switch directly to the battery so they can be turned on without the ignition being on.
If you use an ohmmeter, you can get false readings if there is any power in the circuit. In other words, only use an ohmmeter if there is no power on anywhere. You can remove the fuse and then check it with the ohmmeter. It depends on where the fuse is located in the circuit.
