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06-27-2022, 11:28 AM #11
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Sounds like your converter (takes 120v shore power and converts/supplies 12V DC for use and battery charging) is not working.
- Make sure the 120v breaker for the converter is on. Turn it off and back on to make sure it is not tripped (not always obvious)
- You will need physical access to the converter (not sure where it is located in your trailer) and check the two output fuses on the converter and then check that the converter is plugged into 120v outlet (often times on the back of the circuit breaker/fuse/distribution panel).
If all this checks out, your converter may have failed and need to be replaced.
Note: Grand Design is NOT consistent in how they wire up trailers. However, most of the time the main battery disconnect switch must be ON (connected/can not remove the red key) for the converter to charge the battery.
ChrisLast edited by CoChris; 06-27-2022 at 11:30 AM.
Chris & Karen
Fort Collins, CO
2017 F-350 SRW 6.7 Lariat Value CC LB 4x4
2018 Solitude 310GK - Sold 7/2023
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06-27-2022, 01:41 PM #12
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I often plug
Into
Shore power with the battery disconnected via the red handled switch. When I do
This, all my 12 volt systems work fine via the converter running on shore power with batteries disconnected.
This is convenient because whilst in storage the batteries are disconnected and on a battery tender. I can plug into shore power and run everything.
Sent from my iPhone using Tapatalk2021 Reflection 312 BHTS, Silverado 2500 Duramax
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06-27-2022, 02:47 PM #13
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Turn on a basement light switch then wiggle the red key. At some position, the basement light with come on. You might discover the red key is not making the connection, so you need to find what position the key needs to be in for proper connection.
2024 Brinkley z2900
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06-27-2022, 08:17 PM #14
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Larry KE4DMG
2022 F-350 KRU SRW LB - Airlift 5000+, ForScan, 37 RDS Aux Tank,
2019 310GK-R - Sailuns; MorRyde IS; Disc Brakes; 20K Reese Goosebox
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06-27-2022, 08:45 PM #15
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I know for certain in our trailer (in sig) and I have been into a few others that the converter 12V output goes directly to the distribution (fuse) panel, then to the battery through the "disconnect" switch. With the disconnect switch open (disconnected), the converter will power a lot of the 12V appliances (lights, etc.). Some loads do come directly off of the battery (hydraulic pump, emergency brakes, front compartment lights, schwintech slide, etc.).
ChrisChris & Karen
Fort Collins, CO
2017 F-350 SRW 6.7 Lariat Value CC LB 4x4
2018 Solitude 310GK - Sold 7/2023
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06-27-2022, 09:00 PM #16
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Typical wiring of the converter/charger, fuse panel, Battery switch, and to the battery.
2016 F350 CrewCab Dually
2018 Momentum 394M...Heavily Modded!
2023 Suzuki GSX-S1000 GT+
Excessive Payload is a Wonderful Thing
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06-27-2022, 09:02 PM #17
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06-28-2022, 05:37 AM #18
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Well for those that were playing along at home, it was in fact a blow fuse on the converter. Unfortunately the fuse is soldered on, so a replacement will be in/installed tomorrow.
2022 Transcend Xplor 265BH / 2018 Sierra 1500 Elevation Edition
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06-28-2022, 11:42 AM #19
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I moved this thread over to Electrical from Electronics as that seems a more proper category.
Glad to hear you got things sorted out.
I may have rewired mine when I installed an Inverter/Converter years ago. This is what I have now. I'm going to double check to see that I drew this up right. But it seems to be how it is and seems to be what I want. When I flip off the DC disconnect to the 'house', that's what I want - all those house circuits disabled.Larry KE4DMG
2022 F-350 KRU SRW LB - Airlift 5000+, ForScan, 37 RDS Aux Tank,
2019 310GK-R - Sailuns; MorRyde IS; Disc Brakes; 20K Reese Goosebox
Search kalakamods for my mods
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