Okay, took the supply down and reopened.
BTW ran overnight without a Hiccup
Rob, here's a few images of the Bridge Rectifier replacement.
These supplies take a lot of flack, and mostly justified IMO (banana terminal spacing and plug engagement, quirky UI, and now the rectifier issue), but do provide a good, stable, clean, accurate output that is really good in this price class, and really like the bright display with crystal clear large numerics.
Once calibrated they produce accurate stable outputs in both current and voltage, after all that's what a good supply is supposed to do!! In fact what led us to rediscover the "Hiccup" was a dead garage door opener, we had replaced the battery recently and now dead again. First suspect was bad battery, yep it was dead but why as just replaced? Hooked up 3303X set to 3.0 volts and 10mA current limit to battery holder, the 3303X showed a 1mA current drain when Opener was OFF?? Checked current with KS34465A to verify 3303X 1mA reading, yep was ~1mA. Tried cleaning the Opener, but same 3303X 1mA reading OFF state result and no need to verify with DMM.
Still believe these are the best value at this price (especially with "expansion"), sure there are "better supplies" like the GPP-4323 and new SPD4000 series, however these are higher priced.
Best,