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External PSU shuts down the breaker

Hi! I have a Gold Note PH10 phono and just received the PSU 10. After I turn on the PSU, it shuts down the breaker in the house. I have tried to plug in without connecting the phono, same results. It was all right when I tried in a HIFI shop, and worked well, even connecting to the phono. I would be suspicious, but every single component is working good (with higher load also), except the PSU.
What can it be? 
128x128korakotta

Showing 1 response by gs5556

gs5556
1,231 posts
 
Before you do anything make sure you don’t have a ground fault to the chassis. Measure the resistance between the hot and ground at the iec inlet and confirm there is infinite resistance.

Then check your outlet and make sure it’s wired correctly.
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