In my experience, not only do they NOT provide reports, they often won't even test the darn things so you can correct any installation issues that might be causing it. If you're using a lower end/lower cost system I guess they figure its less expensive to them to just send a refurbished replacement than it is to test and figure out what went bad or, be able to advise the installer about a potential installation problem unrelated to the camera.
We ran into this with DW and it took over 9 months of us begging them to test the cameras, including meetings with them at ISC West, and we kept having failures in the field (28 replaced altogether) before they finally did a test and that was only because in desperation and frustration we finally called the President of the company and he got them moving on tests!
They found that the capacitor was blown up on the main board. This indicated a power problem not a camera problem but it ended up costing us $36k to completely replace the entire system including NVR's to avoid a threatened lawsuit from the end user. DW's failure to properly test the cameras from the start lead to the disastrous and costly result at our end. Had they tested the first couple we returned and found the blown capacitor, we still would have had a cost to fix the problem in terms of power but we wouldn't have had to hire another integrator to do it (a condition to avoid the lawsuit) but we wouldn't have had to replace the whole video system and oh by the way, lost a customer over it. I would gladly have paid a $250.00 RMA fee to have avoided all of this but I don't think most manufacturers really understand or care what goes on at the field level. They just want to sell product and if something goes wrong their only interest is in making sure they can plausibly deny any of it was their fault or responsibility.'
I miss the old Pelco too!
