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Hardware Thread, Brand new PSU fails PAT test worse than old PSU in Technical; Hi there, We have a PC that failed a PAT test, the lead was fine on it's own and so ...
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    Brand new PSU fails PAT test worse than old PSU

    Hi there,

    We have a PC that failed a PAT test, the lead was fine on it's own and so it has to be the power supply itself. We bought a new power supply which is fine for the job and that has failed, and failed the test worse than the original PSU inside the PC.

    Any ideas? Should I take it back to the shop and ask them to replace it?

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    How has it failed? Earth bond, insulation or leakage?

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    EDIT: Just re-read post

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