Certainly not a loose neutral, provided it was making some sort of contact, and nor with a loose L or CPC/earth if, despite being loose, there was a very low impedance connection. However, if a loose L or CPC is resulting in a connection of non-negligible impedance, it will (in a TN installation) flag up an EFLI which is too high. ... so it's probably better using such a tester than not using one, even though it will still miss some faults/problems (and provided one knows and accepts that it will miss some faults/problems).
It's hard to avoid looking like the Grammar Nazi when observing that what you really mean is "May I change electrical sockets in house?", because the answer to the question you wrote is "we don't know", but the answer to the question you meant is "Yes, if you can".
It is - which (provided the intended meaning is apparent) is perhaps a good reason for not making such observations in a 'DIY Electrics' forum.
You are wrong.
It's true that we don't know an unqualified answer. However, it's typical of a type of question that we get asked extremely frequently, and no sensible person would answer with "I don't know". Instead, we answer (or should answer) along the lines "Yes, you may do it, provided that you are knowledgeable and competent enough to do it".
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
