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WR250R cooling fan electrical problem -HELP
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Author:  Mitso [ Thu Feb 11, 2016 9:19 pm ]
Post subject:  Re: WR250R cooling fan electrical problem -HELP

The new thermosensor or CTS arrived today and fitted it - hey presto it works as it should.

What is a little surprising is the fact that the first 2 resistance readings showed an error but the others were a constant decrease as the CTS was heated up. Also the fact that it worked fine when heated with a lighter when not in the engine. So I have come to the conclusion that it is not earthed in situ as all other systems worked fine and apparently share common earths.

I think as Hugh said - it was probably leaking to earth with an internal fault even though I couldn't measure any leak under test.
Thanks to all the replies especially Hugh and hope this will be useful for someone else when they have a similar fault, it was time consuming and irritating but a satisfying outcome. :D

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