Good on you. Glad you had no problems.
Good thing you didn't take it in for a warranty claim. They would have had to have the service mgr and 3 techs look at the O ring to determine if in fact it was faulty.
Then have to contact FR to get authorization to fix or replace the O ring. Probably have to wait 2-3 weeks to get approval, but then find out dealer has to send O ring back to FR for them to determine it was faulty.
3 weeks later O ring is found to be faulty, and attempt to order new one from manuf., but find out it's on back order. But, due in any day.
2 weeks later O ring is finally sent to dealer, and when it comes in, it's found that they sent the wrong one!!!
Reordered, and it comes in , but, dealer is now back logged and can't get to your rig for 4-6 weeks, but dealer wants you to leave it in case "a repair window" becomes available.
Finally, they contact you and tell you everything is fixed, come get your baby.
You get there and do a quick test, and sure enough, the O ring has been replaced. But, tech who repaired it cross threaded the fitting when replacing the O ring.
Now you have to start all over.