Popular New Guides Product Guides Tools Checklists My Rig

Results for "Magnum ME2012"

783+ Q&A Updated Weekly Free
How to Fix Magnum ME2012 Inverter 50 Amp Fault Code and Breaker Tripping Safely
Solar Batteries Hard Professional diagnosis 74 👍

How to Fix Magnum ME2012 Inverter 50 Amp Fault Code and Breaker Tripping Safely

Replaced the DC connections on my Monaco Cayman's Magnum ME2012 inverter per the manual, but I'm still getting 50 amp fault codes and breaker trips. The remote console is consistently showing a 50 amp reading, which I know isn't normal operation. When I watch the unit go through its self-test sequence, it connects initially but then flashes several times before failing completely. The fault light starts flashing on and off intermittently, and eventually the shore power breaker trips entirely.

What's really concerning is that my batteries aren't charging at all during this process. I've read through the manual and it mentions that the inverter might need a reset to clear fault conditions, but I'm not sure if that's the right approach here or if there's something more serious going on. The combination of the 50A fault display, failed self-test, and the shore power breaker tripping makes me think this could be a significant electrical problem.

What steps should I take to diagnose whether this is a simple reset issue or if my ME2012 inverter has a more serious internal problem that needs professional attention? …more
Robert, RV Mechanic
Ask an RV Mechanic Avg reply < 5 min

My Rig Settings

Hi, I'm Hank!
Need help setting up? I can walk you through it
Rig Info
Give it a name you'll recognize
Power & Electrical
Climate Control
Water System
Refrigerator Type
Leveling System
Convenience & Features
Sync across devices