I did this and there is no continuity between the two DC outputs nor the AC inputs.With the whole thing disconnected from the mains,take a DMM on the ohms range,& check for continuity between the two DC output leads of the bridge & the AC input connections to the bridge.
There should be no continuity.
The diodes are oriented correctly, I have even used multiple four pin Bridge rectifiers to see if i installed the diodes incorrectly, but I still get the incorrect output.If you haven't somehow,got a direct connection between one of the DC outputs & the Neutral line,I would guess that you have one or more of the diodes in the bridge incorrectly oriented.
I checked each diode with a DMM and they all seem to be working perfectly, I have attached an image of my breadboard.To check this,disconnect the AC input leads to the bridge,& measure with the DMM in diode test position between each bridge AC input in turn,& the +ve DC output connection(with the black lead on that point).
You should see a forward based diode in each position.
Do the same with the -ve Dc output connection,this time with the meter connections reversed.
Again,you should see two forward biased diodes.
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