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Results for "Discovery LXE"

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How to Remove Firefly RV Control Panel: Complete DIY Guide (2024)
General Hard 45-60 min 131 👍

How to Remove Firefly RV Control Panel: Complete DIY Guide (2024)

Our 2019 Fleetwood Discovery LXE has a malfunctioning Firefly multiplex control panel that needs to be completely removed. I've been putting this off for months because I keep hearing horror stories about people cracking their panels or damaging the surrounding woodwork during removal.

I need to access the back of the unit for some electrical work, but I'm honestly terrified of breaking something expensive. The panel seems to be mounted flush with no obvious screws or clips visible from the front. I've searched everywhere but can't find a complete walkthrough that covers the preparation, actual removal process, and how to get everything back together properly.

Can someone please provide a detailed DIY guide that covers all the steps? I'm willing to take my time and do this right - I just need to know the proper technique so I don't end up with a broken control panel or damaged wall. …more
How to Fix Firefly Battery and Victron System Conflicts in Your RV
Electrical Hard Professional installation 74 👍

How to Fix Firefly Battery and Victron System Conflicts in Your RV

Wondering if anyone else has dealt with a rental RV where the Firefly batteries and Victron system are constantly throwing conflicts I've never seen before. I have a 2020 Discovery LXE 40M that I've equipped with a complete Victron system - two Multiplus II inverters, Cerbo GX, and SOK lithium batteries. The problem is my coach's existing Firefly system is creating constant conflicts with the Victron equipment.

The AC units keep getting "shed" by Firefly, I'm getting random low voltage warnings even when my batteries are full, and my Auto Gen Start has completely stopped working. I've heard this might be related to waveform differences between the systems, but I'm not sure what that means or how to fix it.

I've seen some mentions of using dual transfer switches to isolate the systems, but I have no idea how that would work or if it would solve my Auto Gen Start issues. Has anyone actually resolved this Firefly-Victron nightmare? I really don't want to rip out thousands of dollars worth of equipment, but I need my RV systems to work properly! …more
Cummins Engine Oil Analysis High Metals: Diagnosis & Next Steps
Engine Medium Ongoing monitoring 69 👍

Cummins Engine Oil Analysis High Metals: Diagnosis & Next Steps

Around 6am yesterday my 2017 Discovery LXE 39g's 360hp Cummins started showing catastrophic metal levels on the oil analysis report. I sent a sample to the lab for analysis, and they reported that aluminum, iron, and copper levels are higher than typical generic Cummins engine averages. The lab suggested this could be due to extended oil change intervals from the previous owner, but without any baseline data or service records, I'm not sure how concerned I should be about these elevated metal readings.

The RV was previously in an accident (shows on CarFax as comprehensive damage) with front-end body work including wheel, steps, fender panel, and front cowling replacement, though a Cummins mechanic spent two hours going over the engine with me and didn't find any obvious mechanical issues. The lab recommended testing again after 2000 miles to see if the numbers improve, but I'm wondering how to properly interpret these initial results when I have no previous data to compare against. What's the best approach for establishing whether these metal levels indicate actual engine wear or just the residual effects of poor maintenance practices? …more
Robert, RV Mechanic
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