Her_majesty85 Posted August 5, 2020 Share Posted August 5, 2020 New deep cycle house battery just installed Lights and fans work with the ac plugged into 110 When we unplug our rig, she is dark... no lights 1985 Toyota Dolphin Quote Link to comment Share on other sites More sharing options...
Gary_M Posted August 5, 2020 Share Posted August 5, 2020 Since you have a new battery I assume it's fully charged, that's would be the first check. Next I would check for proper ground connections and make sure you have 12V. If you have a meter I would check for 12v on the converter, should be 2 big wires running into it from the battery. Is the coach battery under the hood or in the coach? Pictures would help too since there are probably modifications done over the years. Gary Quote Link to comment Share on other sites More sharing options...
Maineah Posted August 5, 2020 Share Posted August 5, 2020 It could also be an issue with the relay inside of the converter/charger stuck in the charge possession. The older units had a transfer relay that disconnected the load from the battery when the converter was working. Quote Link to comment Share on other sites More sharing options...
Derek up North Posted August 5, 2020 Share Posted August 5, 2020 Here's the 1985 Dolphin brochure. Which floorplan do you have? I might be able to post the specific wiring for yours. 1985 Dolphin Micro Mini Brochure.pdf Quote Link to comment Share on other sites More sharing options...
Maineah Posted August 5, 2020 Share Posted August 5, 2020 If you are playing with the converter unplug the MH there are lethal voltages inside. DC is not an issue except for arcs and sparks. 9 hours ago, Derek up North said: Here's the 1985 Dolphin brochure. Which floorplan do you have? I might be able to post the specific wiring for yours. 1985 Dolphin Micro Mini Brochure.pdf 1.52 MB · 1 download Got to love the old brochures makes the things look 50' long! Quote Link to comment Share on other sites More sharing options...
Maineah Posted August 5, 2020 Share Posted August 5, 2020 Be sure to unplug the motor home there are lethal voltages inside the converter DC is not an issue just arcs and sparks. Quote Link to comment Share on other sites More sharing options...
Derek up North Posted August 5, 2020 Share Posted August 5, 2020 12 minutes ago, Maineah said: Got to love the old brochures makes the things look 50' long! All done without Photoshop! Just the right lens and small people. Quote Link to comment Share on other sites More sharing options...
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