I really would like to help you but the meter readings you're giving me don't make sense.
Huh? Red and Orange are connected/shorted together at the PCB.
These two wires are essentially the same as the GND terminal.
From the transformer manufacturer:
The RED/ORNG wires above are connected together at the PCB.
(see photo below)
Terminal #2 and #3 (RED/ORG) wires is also the same as the GND terminal on the output.
red/orange =20vacHow can you measure 20V across two GROUND terminals?
Red and Yellow are the two terminals of the secondary wiring. You should measure 18-20Vac here.
Not 0 Vac.
If you think the transformer is wacky, return it. I'll return it to the factory and let them have a look at it. I can send you another one.
But again, I want to know how you can measure something across RED and ORANGE when these wires are connected together/shorted together. You're telling me you're getting 20Vac across two wires that are basically electrically connected.
secondaries to ground:
The RED/ORNG wires are ALSO the GND Terminals.
Now you say, you measure 52Vac between the RED and GND terminal?
and measure 68Vac between the ORG and GND terminal?
How could that be?.... when the RED and ORG wires are connected together, and basically is the GND terminal.
earlier you told me "red/orange =20vac"
now you're telling me "RED/GND" is 52Vac, and ORG/GND is 68Vac.
I don't get it. RED and ORNG are connected together and are both the GND terminal on the PCB.
How can you measure "20Vac" and "52Vac" and "68Vac" across the same two GND terminals?
As I said, RED/ORNG wires are connected together and is the same as the GND terminal.