DC Electrical Problem. HELP !!
04 Fleetwood Revolution with 4 - 6 volt house batteries. Batteries are Trojans less the a year old. I'm currently plugged into shore power, 50 amp service. Yesterday my lights were dim, so invest...
Forum Discussion
Supercup, I'm a retire USN Electronics Tech and troubleshot many a power distribution problem. First any resistance readings or continuity tests on an energized circuit are always suspect. The circuit power can cause false or misleading meter readings. To test a fuse in an energized circuit you want to read the voltage on either end of the fuse. Anything more than 0 volts, and that could be as little as .5 volts indicates an open circuit. A fuse is nothing more than a piece of wire and other than long lengths you should not see a difference at any point along the wire.
You second problem is why the fuse blew and I suspect if you replace it the new fuse will also blow with time. Doesn't need to be a dead short but you're seeing a heat build up that is slowing heating the lead in the fuse until it softens enough to melt ever so slightly as to open the circuit. Heat is amps and something is demanding a large level of amps. With out detailed knowledge of your coach and the DC power distribution can't say what could be the problem. Bad solenoid in the battery control center or hydraulic jacks/slides, shorted water pump, macerator? Can't recommend a service center but troubleshooting something like this isn't much different than a car with something grounding and eating the battery. You either start by pulling ALL the fuses and reinstalling one by one and checking power demand or one at a time until you find the offending circuit. Can be time consuming if you are not familiar with the vehicle.
But then again I could be beyond left field and out in the parking lot somewhere.
You second problem is why the fuse blew and I suspect if you replace it the new fuse will also blow with time. Doesn't need to be a dead short but you're seeing a heat build up that is slowing heating the lead in the fuse until it softens enough to melt ever so slightly as to open the circuit. Heat is amps and something is demanding a large level of amps. With out detailed knowledge of your coach and the DC power distribution can't say what could be the problem. Bad solenoid in the battery control center or hydraulic jacks/slides, shorted water pump, macerator? Can't recommend a service center but troubleshooting something like this isn't much different than a car with something grounding and eating the battery. You either start by pulling ALL the fuses and reinstalling one by one and checking power demand or one at a time until you find the offending circuit. Can be time consuming if you are not familiar with the vehicle.
But then again I could be beyond left field and out in the parking lot somewhere.
