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Need explanation of testing starcraft trailer with reverse…

Need explanation of testing...

Need explanation of testing starcraft trailer with reverse polarity bus fuses?

Mechanic's Assistant: Have you checked the vehicle's manual yet?

Yes, but it doesn't explain how things should look when using a multimeter with it?

Mechanic's Assistant: What is the model/year of your RV?

2014 Starcraft Autumn Ridge

Mechanic's Assistant: Are you fixing your RV yourself? What have you tried so far?

I have gone through 2 batteries in two years, I want to ensure there aren't problems from the trailer causing it...

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I was able to test amp just fine, after plugging back in the reverse polarity fuses I got a negative reading instead of positive?

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Answered in 2 minutes by:
3/20/2018
Robert
Robert, RV Mechanic
Category: RV
Satisfied Customers: 15,121
Experience: 18 yrs. RV experience including Cummins North West, Country Coach, Monaco Coach - vendor certified.
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Hi, I'm Robert. Welcome to JustAnswer. I'm reviewing your question now and will post back with your reply momentarily.

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Where exactly are these fuses located, are they on the converter or near the battery?

Are you checking voltage plugged into shore power?

Thanks, Robert

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Customer reply replied 5 months ago
I was testing amperage while on battery to see what is using the battery. I took all fuses out by the converter on the panel next to the breakers. I did this one at a time and identified the three circuits that have a minimal constant draw. Then at the end I plugged back in the reverse polarity fuses and went to test, got a slight spark when connecting between the negative on the battery and the negative cable and the multimeter then showed a negative?

OK

Give me a few mins to think about this and then type a response....

Robert

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OK

SO plugged into power if you go to the battery what is the voltage and does it show on your meter if the polarity is reversed? AT the battery? Most meters will throw a minus sign if the polarity is incorrect.

Robert

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Customer reply replied 5 months ago
Ok, give me a minute. I will get power ran out to it and I will do the call option. Give me 5 minutes.

Sounds good...

Robert

Robert
Robert, RV Mechanic
Category: RV
Satisfied Customers: 15,121
Experience: 18 yrs. RV experience including Cummins North West, Country Coach, Monaco Coach - vendor certified.
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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