Fender ’64 Custom Deluxe Reverb 2018(Feb. 2025) fuse issue?

[Peng1026]

Hi guys, sorry if my original post was a bit unclear — let me clarify exactly what happened regarding the fuse issue:
The amp was working normally during several separate playing sessions (in total maybe 5–6 hours of intermittent use). Everything seemed fine, no strange noises, no smell, no flickering lights. The amp was turn off with a very normal way (standy off than switch off), without any abnormalities. Then one time when I (happily) tried to turn on the amp, it just wouldn’t power on at all (sadly). No pilot light, no sound, nothing. It’s not the kind of failure where the light turns on for a moment and then fades — it was completely dead from the moment I flipped the power switch. And this exactly happen in total three time on the two amps (2+1).
The dealer offers a 30-day money-back guarantee, so I’m planning to return the amp.
Thanks again to everyone who offered help or insight!

[bluenote61]

Just for right understanding, what was the position of the standby switch when it didn't turned on?

[Peng1026]

Just for right understanding, what was the position of the standby switch when it didn't turned on?

in the lower (off ) position.

[sgosnell]

I've seen amps blow the fuse so quickly that it appeared that it just wouldn't come on. Replacing the fuse gave the same symptom, but the fuse blew quickly every time. Bad rectifier was the cause. Obviously I can't say whether this one is the same.

[Peng1026]

Hey guys, I’m the OP and just wanted to give an update on this issue:


After returning the two amps, I bought another Deluxe Reverb ’64 Custom Handwired, with a serial number dating to May 2024. I’ve been playing it 2–3 hours a day for the past month, and so far it hasn’t blown a single fuse.


This makes me really suspect there might have been a batch issue (maybe just with the European version), since both of my earlier units from Feb 2025 kept blowing fuses. I actually reached out to Fender Tech Support about this back in July, but still haven’t heard anything back.


One last thing worth mentioning: I went back to the shop where I returned the first amp, and noticed they’re selling it again as new. And guess what? They’d put a slow-blow fuse in it...

[bluenote61]

One last thing worth mentioning: I went back to the shop where I returned the first amp, and noticed they’re selling it again as new. And guess what? They’d put a slow-blow fuse in it...

Just for clarification, slow-blow is standard for main fuses. Also Fender used slow-blow fuses in the past.
I don't know why Fender now specifies fast acting fuses, as shown on the pic of the back panel.

[Sam Sherry]

Hey guys, I’m the OP and just wanted to give an update on this issue: . . . I bought another Deluxe Reverb ’64 Custom Handwired, with a serial number dating to May 2024. I’ve been playing it 2–3 hours a day for the past month, and so far it hasn’t blown a single fuse.

Way to go! Great to hear that you got it sorted.

I went back to the shop where I returned the first amp, and noticed they’re selling it again as new. And guess what? They’d put a slow-blow fuse in it...

Many American big-box vendors would show your returned amp as "open box."

But it's an interesting point about the fuse. The original Fender AB763 schematic (shown here in Rob Robinette's site) shows a slow-blow fuse:




In contrast, the schematic for the reissue shows a fast-blow fuse.

I'll leave the analysis to wiser minds.