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Old 03-20-2019, 11:42 AM   #9
Badpuppy
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Join Date: Dec 2017
Location: Guthrie, OK
Posts: 1,144
Default Re: Small circuit breaker heats and opens

Quote:
Originally Posted by Tim Warren View Post
When the engine is NOT running, if I turn my headlights on, they light, and the running lights are on. After a few minutes all go out and the circuit breaker on the small fuse block on the starter is hot. Wait a few minutes, lights on w/ engine off and the whole process occurs again. Does this indicate a short somewhere? Thank you in advance.
Read your ammeter on the dash for how much current is passing through the breaker. It should be rated at least 20 amps. Breakers are thermally operated and should be warm when activated. I've never met up with one that is polarized.

Check battery voltage. Incandescent bulbs draw more current with lower voltage
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