Mike, just wondering if you have covered yet how to put out an electrical fire? do we RVers have the right extinguisher? what should our sequence of steps be? This could be a new topic for you?
I would very much be interested in further understanding of the 4 and 7 pin connectors. Currently I am dealing with issues related to this and have invested many hours trying to solve what remains an unsolved issue.
I also like to use a plastic (vinyl) cover over the male trailer connector when it’s not connected to the tow vehicle. The ones that fit over a trailer hitch ball are the perfect size. Secure it in place with a piece of velcro tape and it keeps moisture and debris out. The velcro tape is good to wrap around the connector when the trailer is connected as well. Wrap it around the connector and the cover flap and you are assured that the connector can’t fall out.
It’s hard to know but it sounds like the arching event may have happened while they were hooked up to shore power. Most tow vehicles will disconnect their battery from the aux power line when the engine is off so it could be that they were connected to shore power and plugged into the tow vehicle when the engine was running. If they had one or more fully charged or discharged lithium batteries one could imagine that when the two stiff voltage sources (different by several volts) were connected together you’d get some arcing.
That’s my guess as well. I asked the OP if he connected the 7-way plug with his truck ignition on, but he didn’t respond. And the 14.4 volts of a Lithium charger in the trailer could create a backfeed current to the truck battery (with a lower voltage) which would create an arc.
A video or a light string on plug maintenance would be helpful too many
Question suggestions on multimeter probe to test amp outlet.
To Mike, How to change email address with my account the one in have is now hacked and i cannot use it. Please reply to rxqual@verizon.net
Mike, just wondering if you have covered yet how to put out an electrical fire? do we RVers have the right extinguisher? what should our sequence of steps be? This could be a new topic for you?
I would very much be interested in further understanding of the 4 and 7 pin connectors. Currently I am dealing with issues related to this and have invested many hours trying to solve what remains an unsolved issue.
I also like to use a plastic (vinyl) cover over the male trailer connector when it’s not connected to the tow vehicle. The ones that fit over a trailer hitch ball are the perfect size. Secure it in place with a piece of velcro tape and it keeps moisture and debris out. The velcro tape is good to wrap around the connector when the trailer is connected as well. Wrap it around the connector and the cover flap and you are assured that the connector can’t fall out.
It’s hard to know but it sounds like the arching event may have happened while they were hooked up to shore power. Most tow vehicles will disconnect their battery from the aux power line when the engine is off so it could be that they were connected to shore power and plugged into the tow vehicle when the engine was running. If they had one or more fully charged or discharged lithium batteries one could imagine that when the two stiff voltage sources (different by several volts) were connected together you’d get some arcing.
That’s my guess as well. I asked the OP if he connected the 7-way plug with his truck ignition on, but he didn’t respond. And the 14.4 volts of a Lithium charger in the trailer could create a backfeed current to the truck battery (with a lower voltage) which would create an arc.
Yep!
I agree with the Deoxit-5. I have been using it for decades and use it every time I connect.