Quote:
because the circuit breaker built into the headlight switch is overheating & opening.................. High resistance in the wiring & connections creates a higher current load to run the headlights........., eventually the breaker has gotten weaker & now you are at a point where the breaker routinely fails..
Your post of the cause and the solution is mostly excellent....except for one thing.....the mechanics of the problem.
"High resistance" in the circuit DOES NOT cause higher current. (Ohms law tells us that) What DOES usually happen is that high resistance IN THE CONNECTIONS and THE BREAKER CONTACTS THEMSELVES cause HEAT. When the connector at the light switch corrodes, gets slightly loose, or the wire crimps in these terminals become deteriorated, this adds resistance and LOCAL HEATING which warms up the breaker. When the breaker CONTACTS become deteriorated with age, the same thing happens.
Last edited by Yancy Derringer; 12/23/10 01:41 PM.
