Originally Posted by Saubleguy
Run my 15k at home on 15amp circuit - no prob. Using #12 extension cord wire to feed it.
I have to say that I believe you are seriously overloading that extension cord and may have damaged your 15 amp breaker from over heating.
Humor me and plug in a voltage tester (and an ammeter if you have a "Kill-a-Watt) at the junction of your #12 extension cord and your camper's shore power cord. Test again inside the camper.
Let me know what your startup voltage drops to and the highest amperage recorded. You can calculate the amps by dividing the recorded start up wattage by the lowest volts recorded.
I would not be at all surprised to find you are looking at 28 - 35 instantaneous amps on that cord and breaker after the voltage drop on the way to the camper.
Humor me and let me know...
I will take a video of my Coleman Mach III 15K starting up. I have a hard wired AC voltmeter and ammeter right at the socket entrance of the camper.
I feed my house power camper circuit off of a dedicated 20 amp breaker with 25 feet of #12 exterior grade ROMEX to the TT socket; then I plug the camper cord directly into it. I think you will be surprised with the result.
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