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cwalt84's avatar
cwalt84
Explorer
Jun 11, 2023

How to further pinpoint lighting circuit short

2011 Bighorn 5th wheel - Converter went bad, at the converter on the DC side, with the leads off, I have continuity between positive and negative until I pull the fuse for Living Room Lights. Are ...
BB_TX's avatar
BB_TX
Nomad
Jun 12, 2023
A cold incandescent light bulb is basically a very low resistance wire when measured with a meter. When power is applied that wire (filament) heats rapidly and the resistance also rapidly increases. Much higher resistance than before power is applied.

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