Window Documentation
Lippert Case #6718126
Lippert Response
Lippert Case #6718126
On the first warm day of the season, we turned on the AC and it simply couldn't keep up. Something felt off, so I dug through our pile of manuals in the camper looking for the AC manual — but instead I stumbled on a Lippert Technical Service Bulletin regarding our windows:
I was sitting at the dinette table reading through it when I turned to look at the window on my right and saw the Lippert Certification Stamp staring right at me from the inside.
The TSB makes it clear: if the glass is installed reversed, you're losing somewhere around 20% or more in solar light rejection. And this isn't just one window — it's all 13 in the coach.
We submitted a warranty claim to Lippert. After reviewing photos of all 13 windows from both the inside and outside, Lippert responded:
We appreciate Lippert's review of the case — and more importantly, we agree on one foundational fact: the tint/coating belongs on the outside.
However, we disagree that the tint/coating is actually on the outside. Lippert concluded the windows are installed correctly based largely on photographic evidence provided during the initial review. We are skeptical that the coated side can be reliably identified from photographs alone.
So, in an effort to resolve this, we have flipped one single pane of glass from its original orientation. Which means, if Lippert's assertion is true, that pane now has the mirror tint facing the inside of our camper.
We challenge Lippert to identify the flipped panel using the photos below.
Additionally, having flipped only a single pane in one of the double-pane windows should make spotting it absolutely obvious — it will be sitting directly next to a pane that is "correctly" installed. (Scare quotes intentional. And yes, we realize this clue eliminates the 3 single-pane windows from consideration, which should give Lippert even more of an advantage.)
If, however, Lippert cannot identify the flipped pane, then the claim that these windows are installed correctly cannot be satisfactorily substantiated — and a more thorough investigation is warranted.
To assist with re-evaluation, we've prepared this documentation site with all window photographs organized for easy reference. Each window set can be viewed individually by clicking its card below. Each image includes a download link to obtain the original full-resolution file.
Case #6718126 · May 8 – May 18, 2026
I've attached a photo of the part label from one of my windows. Here are the details I was able to read from it:
In order to move this forward, I believe we need to establish a few details about these specific windows:
I think answering these questions is the most straightforward path to resolving this claim.
Regards,
Zach
Good morning,
Regarding your previous statement:
"The window tint was not applied incorrectly. If it had been installed backwards, the mirrored appearance would be visible from the inside looking out..."
Perhaps this photo of one of my windows from the inside where the mirrored appearance is clearly visible from the inside looking out will convince you:
The Fixed Operations Director at my dealer, Dave from Camping World of Ann Arbor, got involved after Lippert went silent. He was able to get a response out of them and said they would be calling me to set up an appointment to come inspect the camper in person.
Lippert never called.
May 18, 2026
Thanks for calling today David,
Below are a couple photos of a window that I flipped a pane of glass on.
I flipped this pane of glass AFTER Lippert's original conclusion that my windows were installed correctly. A conclusion they made from photographic evidence stating that if the glass had been reversed then the mirror coating would be visible from the inside and not the outside. These photos show the glass as clearly reflective from inside and outside. I then asked if they could tell me which pane was now "incorrectly" installed per their own arguments. They could not, and have been ghosting me ever since, despite sending one email per day asking them for any updates.
The third photo is a closeup of the masking tape on the windows to clearly show the gap vs no gap I described to you earlier using the ballpoint pen technique. Notice on the top pane the masking tape appears to be mated exactly to the reflective surface, while the bottom pane appears to float by 1/8" or so off of the "reflection." (this is the pane I flipped)
Regards,
Zach
I want to be clear: the dealer — including Dave and every service person who assisted with this claim — has been incredibly helpful and has done everything they possibly could to move this forward on my behalf.
This is 100% on Lippert. They are the ones who have been unresponsive, unprofessional, and unwilling to engage with a straightforward warranty investigation.
Exterior photos showing the location of each labeled window.
Click any window to view the photos in detail. Each entry shows the inside and outside of the same window for comparison.
