Man, if it’s that much of a pain to get an exchange from them I guess I’d be better off keeping it and just use the manual peq. And hope that’s the only problem it hasI recently got a refurb RX-A3070 from Accessories4less with a problem (left main preamp out was only the right channel's bass, and right main preamp out was the right channel's audio without bass, and the left channel's audio came out of neither preamp out). They told me that wasn't possible and argued with me telling me I didn't know what I was doing (I've owned Yamaha receivers for 35 years). They gave me the run-around having me do days of tests, and I also confirmed with Yamaha USA support (who are awesome). This all ended up with me being correct about the problem in the first pace. I opened an RMA on their website. They then stopped replying to my emails and phone calls altogether. After a week of no response I ended up opening a dispute/chargeback and that got their attention and they processed by RMA and sent me a label. I ended up purchasing a different RX-A3070 from IQ Home Entertainment, and authorized dealer, who has been awesome in post-sales support. My card company eventually ruled in my favor and I got all my money back. So, I will never again buy from them. I should have trusted all the bad reviews, and there are dozens of them.
I don't know if all their "refurb" units have been through Yamaha's authorized repair and were certified working through rigorous testing, but they seem to sell a lot of refurbs that actually have some kind of problem that didn't get caught or repaired during the refurb process.
So, it is likely you received a bad refurb unit from Accessories4less. Contact them with your issue and get the process started of exchanging it. They have a horrible return/restock process, buyer pays all shipping both ways and a 20% restocking fee! If they can take your refurb back and trade you up to a new unit instead, I'd go that route.