I hope someone here can help and electrically challenged person. I bought a 10 year old pup up camp trailer that has the following accessories converter, heater, fridge, lights, CO alarm & water pump. Of course it came without a battery. It is supposed to charge from my vehicle while towing. It has three wires to hook to the battery. One white which bolted to the chassis so I know that is ground. One red that (with 30 amp fuse) that plugs into a black wire that disappears into the front of the trailer that I know goes to positive terminal.
Then there is this problem green wire (with 15 amp fuse) that plugs into a black wire and goes back toward the converter and also disappears into the trailer. I believe this should go to the positive terminal but what trouble me is it seems to have continuity when checked with a meter at 2000 ohms and seems to have continuity when checked against the ground wire. The meter is a cheap HF digital and I get readings from the low 200 down to 001 or 000. I occasionally will get minus readings also. I admit to being completely ignorant in how to use a meter but occasionally can get a useful answer from one of the things.
I tried hooking up red to positive and green and white to negative going with the theory that if I have continuity then they must both be ground wires but then the lights, pump etc don’t work. I would really rather not fry anything so thought best to ask some of the old pros here. The green wire will spark if I scratch it on the positive terminal, for what it’s worth.
thanks in advance
Then there is this problem green wire (with 15 amp fuse) that plugs into a black wire and goes back toward the converter and also disappears into the trailer. I believe this should go to the positive terminal but what trouble me is it seems to have continuity when checked with a meter at 2000 ohms and seems to have continuity when checked against the ground wire. The meter is a cheap HF digital and I get readings from the low 200 down to 001 or 000. I occasionally will get minus readings also. I admit to being completely ignorant in how to use a meter but occasionally can get a useful answer from one of the things.
I tried hooking up red to positive and green and white to negative going with the theory that if I have continuity then they must both be ground wires but then the lights, pump etc don’t work. I would really rather not fry anything so thought best to ask some of the old pros here. The green wire will spark if I scratch it on the positive terminal, for what it’s worth.
thanks in advance
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