Does anyone use the UNI-T 528 test tool

[James]

You are misunderstanding, you should be able to measure the continuity of any piece of wire from one end to the other.
if you can’t read it on your tester, it is not there to read and is a fault either in your test method or the cable.

 

[PenllŷnShan]

You are misunderstanding, you should be able to measure the continuity of any piece of wire from one end to the other.
if you can’t read it on your tester, it is not there to read and is a fault either in your test method or the cable.

Thanks for your patience James. I am new to this so maybe don't use the right words. I do of course understand that I should be able to measure the continuity of any piece of wire, and that is exactly what I was trying to do with my UT528 on this appliance. Usually when I test it gives me a reading, which I can then see is either a pass reading or a fail. However on this occasion the machine was just saying "fail", no reading in numbers at all, wherever I attached the probe on the casing, which was all metal. So I was unsure whether it was reading it at all! Or a genuine fault. As it was later passed by another technician I assume I was doing something wrong and was merely trying to find out from you guys what, if anything, I should have been doing. I tested the machine at home on our own fridge and it worked fine, so not the machine. I wonder if I was either not attaching the probe to the correct place, or whether I needed to reset the UT528 for a longer cable or different voltage?
Thanks again

 

[DPG]

I have seen issues before where people rely on the test instrument saying 'Pass' or 'Fail'. But a tester should know what results to expect, and what they may mean when they are outside limits. There may be a need to perform manual tests in some cases.

 

[davesparks]

. As it was later passed by another technician I assume I was doing something wrong and was merely trying to find out from you guys what, if anything, I should have been doing.

It is at that point you just get your multimeter out and check for continuity between plug and the machines earth terminal and between the earth terminal and the suspect metalwork.