Electronics > Repair
Power Supply 305D - showing current with no load plugged in
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jensenpm:
Hi all - newbie here. I have an issue with my WEP PS-305D power supply. It's showing a standing current of around 3.5A with no load plugged in. Voltage seems to work fine, although it could probably do with some finer calibration. I've had this issue for a few days - and other than the Current Meter being incorrect, it seemed to be working well enough to let me finish my couple of small tasks.

Today I got around to taking the cover off to look for anything obvious. Couldn't see anything, but I wiggled a few plugs to see if there might be any loose connections - and then the no-load displayed current returned to zero as it should. I hate to declare it "fixed", so I was wondering if anyone could point me in the direction of which connection might be causing this. (I wiggled too many to know.)

Anyone have any thoughts?

Thanks
Harry_22:
Hello!
You made a typical mistake when diagnosing a malfunction. You can’t touch or reconnect anything until the reason is found. So it was scared away for a while. Now should wait for it to appear again.

It would be great if next time you attached a photo with the current and voltage indicators and an external voltmeter readings as well.
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