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Message: <blockquote data-quote="eyepea" data-source="post: 13177852" data-attributes="member: 200324">Can a computer case fan be tested with a ohm meter correctly ?Fan not rotating.Fan blades can be rotated by hand easily. The changes in magnetic poles felt. Can't notice any difference from a working fan. So no dust or anything obstructing fan rotation.I connected fan to psu and checked voltage near connector. It is 12V.So I assume fan getting power.Next I want to check loose connection, coil burnt open or short circuit.I disconnect fan and check resistance with a ohm meter (analog - I could not get hold of a digital one). It reads about 20 ohms.Do I get a useful reading since am using an analog meter ?I saw this in the web : <a href="http://www.ehow.com/how_7544128_test-computer-fan-ohmmeter.html" target="_blank">http://www.ehow.com/how_7544128_test-computer-fan-ohmmeter.html</a>It says if resistance is greater than 10 ohms then fan is bad.Is this information correct ?So according to that ehow article, the fan is bad.But I also want to know...since ohm meter read 20 ohms, it means there is no broken wire, there is no burnt coil giving open circuit or no short circuit.Is my assumption correct ?so why fan not working ?</blockquote>

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