Welcome to JOF
Sounds like you may have the 30amp IOTA ILC-3045 Load Center (converter/charger) which is only a 2-stage unit......, that's what my "retired" 2005 Eagle TT had. The black front panel would have "IOTA" printed in the upper left corner.
I upgraded my IOTA converter/charger with a Progressive Dynamics #PD 9245 (3-stage) unit which is a stand alone converter/charger.
I left my IOTA attached to the back of the Load-Center (breaker/fuse center), located the PD within a couple feet of the existing IOTA Load Center, and basically re-routed the wiring (110V & DC) off the IOTA converter/charger over to the new PD 9245. I purchased some additional wiring/connectors, etc., to accommodate the new unit's location from the IOTA Load Center. NOTE: I did this MOD back around 2012.
The following JOF thread link has a couple pics of what a IOTA Load Center looks like (compare with yours):
IOTA Load Center owners manual (generic):
I recommend that you contact "Best Converter" (1-888-828-1893 or 334-406-0653) and ask for "Randy", he will be able to give you technical/product replacement guidance on how to address your present situation. I spoke with Randy last week in respect to the new Progressive Dynamics unit I purchased from him last month and he addressed all my questions. I installed a new PD converter/charger in my 2018 Jay Flight a couple days ago (removed the poor performing WFCO unit)..., the PD unit works great!
Best Converter: BestConverter - Converters, Inverters, Electrical Supplies, Electronics
There should be some identifying data somewhere around/on your converter/charger ...., I don't recall where mine was on my 2005 Eagle. You could contact Jayco Service Support (have VIN handy) and ask them...., they should have the info on file.
Hope this helps
2016 GM 2500HD 6.0L/4.10
2018 Jay Flight 24RBS
2002 GM 2500HD 6.0L/4:10 (retired)
2005 Jayco Eagle 278FBS (retired)
1999 Jayco Eagle 246FB (retired)
Reese HP Dual Cam (Strait-Line)