I had to send back my V3 after just two weeks because the ANSR wouldn't turn on. Grace will double check the HPF switches since they will have my unit anyway. Sucks to be without my V3 even for just a little while.
Just a follow up. Grace emailed me. Had my unit on the bench two days after I mailed it.
"Your V3 got delivered today and I just got it on the bench. Looks like
a capacitor in the ANSR control signal circuitry had malfunctioned.
This was replaced and your ANSR is working fine. I'll be checking out
the filter section this afternoon and giving your unit a complete bench
test. If all goes well, you can expect it to ship back out Tuesday.
Please let me know if you have any questions."
Top notch people at Grace.