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Pat tester issues

Gerard O'Neill

Have used a First Stop Pat tester which is fully calibrated etc.  NO passing issues on extension leads etc. Long or short.  Bought a new PAT tester (lower one in photo) which appears to be an upgraded model. However, all power cord tests fail. Pass on older device and fail on newer device.  Scratching our heads to work this out.  Supplier  a tad surprised too. We even swapped the new unit in case it was faulty and no difference. Any ideas?  Any one else having issues with latest version of first Stop  PAT tester? 

 

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    Juts to add that we have checked plug tops, sockets, fuses etc.   Still fail on new kit and not on old model. 

  • 0 in reply to Gerard O'Neill

    'Polarity' in this sense means the tester thinks that L and N are reversed.

    To prove this you could rewire one plug to make a lead where L and N are actually crossed (so connect Blue to the fuse, Brown to the neutral pin) and see if the recalcitrant tester passes it.

    Once you have verified this, then put it back properly soonest of course !

    If that deliberately reversed lead was a 'pass' that would be the smoking gun that the tester has an internal wiring error.

    At which point you present your evidence to the makers and demand they give your money back and if  it looks like more than one affected unit, also issue a product warning or maybe a recall.

    Trading standards (via Citizens Advice Bureaux these days) should be interested, but would probably not consider it very serious.

    Mike.

  • 0 in reply to mapj1

    If that did prove to be the cause.... it should lead to some very serious internal questions for the manufacturer about their own end-of-line testing!

    Yes, of course human error can & does/occur... but there should be sufficiently vigorous testing in place to ensure that such errors are detected & don't leave the factory.

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  • 0 in reply to mapj1

    If that did prove to be the cause.... it should lead to some very serious internal questions for the manufacturer about their own end-of-line testing!

    Yes, of course human error can & does/occur... but there should be sufficiently vigorous testing in place to ensure that such errors are detected & don't leave the factory.

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