You know, if FR has records of existing unit issues repaired or paid repairs, you may have a legal claim.
History, once subpoenaed by a lawyer, will either support what you "think" you know or disprove it. I would NEVER sit back and accept that a previous, original buyer, DID NOT KNOW.
I suggest you find counsel that has manufacturer expertise and initiate conversation with FR through him/her.
It's very ez to blow past complaints once out of warranty, EXCEPT, when there are settled issues!
You have a legal responsibility to disclose your repairs of this magnitude down the road ( if asked) unless you sell "as is"..... You have little to lose by getting counsel.
Let someone with legal knowledge assist you. Even the previous owner may have responsibility of non disclosure.
Your situation deserves attention!
By the way, I am not Pro Legal. BUT,
I am for righting a wrong. I would guess FR will reconsider your situation IF THEY HAVE RECOGNIZED THE ISSUE AND SETTLED CLAIMS.
Just FYI, I have found FR very cooperative. I still have to go back a second time to Goshen. BUT, I am willing to make the trip to have a unit that will last us many years.
US Army Signal Corps motto:
" Think, Go, Do"
1963 - 1966.