LouLawrence
Traveling the US fulltime since 2000.
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Joined: 03/16/2021
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You might start my having the main 50 amp breakers (2 breakers tied together) turned on and all other breakers turned off. Then, use the individual breakers to turn things on 1 at a time. Start with the A/C and watch the amp spike and how long it lasts. I assume you have some way to monitor your total amps in use.
Hopefully you can isolate where the excess amp draw is coming from. If this is at a campground and the campground has a good 50 amp plug (same dual 50 amp breaker tied together) and it is not tripping then the issue is in your power cord, breaker box or one of the appliances we hope to identify.
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pianotuna
Regina, SK, Canada
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Joined: 12/18/2004
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LouLawrence,
Unfortunately I don't have access to a clamp on amp device.
What I do have is a kill-a-watt meter.
Unfortunately the main shore power plug has been abused in the past due to a disconnected neutral (lawn mower event), which was fixed last summer--but the melted plug was not replaced. The part that melted was a 15 to 50 dogbone if I remember correctly. It melted at the 15 amp end due to the absence of the neutral.
The shore power breaker is not tripping at the house.
Voltage at 114 under load tells me the cord to the house is ok.
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.
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enblethen
Moses Lake, WA
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Sure sounds like a neutral issue in the rig including shore power cord.
Turn off power to rig, closely inspect the 120/240 distribution panel for damaged conductors.
Bud
USAF Retired
Pace Arrow
2003 Chev Ice Road Tracker
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pianotuna
Regina, SK, Canada
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Update
Main breaker is quite hot to the touch--and now will not reset.
I'm suggesting a mobile repair person.
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enblethen
Moses Lake, WA
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Let us now what is found!
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wa8yxm
Davison Michigan (East of Flint)
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A hot breaker means either a bad breaker a bad connection or some serous error
I would measure voltages Leg to leg. leg to neutral and leg to ground Both legs) one thing that can blow all breakers. and most of your expensive electronics, is over voltage.
Think of voltage like persure in a water line.. You push 40 PSI and a specific nozzle delivers 2GPM.. What do you think happens if you push 80 PSI (4GPM?) Well amps are like GPM.. only in the case of overvoltage it can go much higher
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times
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enblethen
Moses Lake, WA
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Is the rig connected to a 50-amp shore power or is it using an adapter?
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pianotuna
Regina, SK, Canada
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enblethen,
It is an odd situation. There are two shore power cords--but one is hot and ground the other is neutral. Whoever did it used wire nuts.
There is also a 15 to xx dogbone. That has some melting where it plugs into a #12 cord. The cord is quite long.
The only number I'm sure of is 114 volts under load.
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enblethen
Moses Lake, WA
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Missed wired! need to fix and wire properly before rig burns to the ground!
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StirCrazy
Kamloops, BC, Canada
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Joined: 07/16/2003
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pianotuna wrote:Update
Main breaker is quite hot to the touch--and now will not reset.
I'm suggesting a mobile repair person.
or just unplug, remove the breaker (take pictures how its wired) go to Home Depot get a new one and install it. breakers are easy as heck to change out and in a rv where you can unplug you can isolate the 120V side (turn off your inverter also) and not worry about a shock.
Steve
2014 F350 6.7 Platinum
2016 Cougar 330RBK
1991 Slumberqueen WS100
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