We are having a horrible time with the residential fridge and the inverter in our 2015 Bighorn 3570RS. The first issue was noticed immediately when we got it home from the dealer. The GFI on the inverter would trip within a couple of minutes after disconnecting shore power and engaging the inverter. We contacted Heartland and they sent us a replacement (same model) that was suppose to have either a software upgrade or some other adjustment (it varies depending on who I talked to at heartland). We thought this fixed the problem. What we discovered was the fridge would stay on (lights only) for about 5 or 6 minutes and then the inverter GFI would trip. We suspect it trips as soon as the compressor kicks in. We expect it is again, another bad inverter. I'll explain why. We have no problem running the fridge when plugged into our 15amp outside GFI receptacle in our house. To test the inverter side of the transfer switch I disconnected the trailer power cord from our house and then plugged the transfer switch on the inverter side into a different 15amp GFI receptacle in our home and again the fridge ran without issue. The outside GFI's in our home are receptacle types similar to what is built into the inverter and they never once tripped when running the fridge from either side of the transfer switch. I then plugged a small portable heater into the inverter to test if it was a load issue and other than a load warning the GFI never tripped.
I watched the inverter DC power indicator right up to the point the GFI trips (5+ minutes after the fridge is connected) and it stayed around 12.9 volts. I did find a lot of refrigerator posts on sites saying they don't recommend them connected to a GFI for the same issue I am having (false GFI tripping). At this point I am at a loss. Very upset due to now having to cancel our trip to the east coast to see our daughter arrive back from a 6 month navel deployment. Huge fanfare and military ceremony when the ship docks. The trip has been planed for weeks and we had the trailer almost fully packed when we discovered the inverter issue. I have numerous campground bookings with many having cancelation fees. Wife is extremely disappointed and can't believe we have a 95k trailer we can't use. She was hoping I would pull a rabbit out of the hat but other than confirming its another bad inverter there was nothing I could do to fix the issue. Thus far since April we have used the trailer once to transfer stuff from our old trailer. Sadly, this was to be our maiden voyage.
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I watched the inverter DC power indicator right up to the point the GFI trips (5+ minutes after the fridge is connected) and it stayed around 12.9 volts. I did find a lot of refrigerator posts on sites saying they don't recommend them connected to a GFI for the same issue I am having (false GFI tripping). At this point I am at a loss. Very upset due to now having to cancel our trip to the east coast to see our daughter arrive back from a 6 month navel deployment. Huge fanfare and military ceremony when the ship docks. The trip has been planed for weeks and we had the trailer almost fully packed when we discovered the inverter issue. I have numerous campground bookings with many having cancelation fees. Wife is extremely disappointed and can't believe we have a 95k trailer we can't use. She was hoping I would pull a rabbit out of the hat but other than confirming its another bad inverter there was nothing I could do to fix the issue. Thus far since April we have used the trailer once to transfer stuff from our old trailer. Sadly, this was to be our maiden voyage.
Sent from my iPad using Tapatalk