Problem determination

Before you start problem determination in detail, it is worth considering whether there is an obvious cause of the problem, or an area of investigation likely to give good results. This approach to diagnosis can often save a lot of work by highlighting a simple error, or by narrowing down the range of possibilities.

The checklist below raises some fundamental questions that you need to consider.

As you go through the list, make a note of anything that might be relevant to the problem. Even if your observations do not suggest a cause straight away, they could be useful later if you have to carry out a systematic problem determination exercise.

The preliminary checks that you should make are as follows:


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