F25 is a pretty unusual code on these machines – I don’t see it very often. F25 tells us that the central control board (or motor control board – not sure which) is not sensing the tachometer on the motor. On this one, the motor and tachometer both ohmed out as good. It took me a good half hour of checking continuity and testing to finally find this broken wire. It was still nicely lodged into the connector, but no longer had continuity. When I gave it a good tug, it popped out of the connector.
So a new motor harness for this one. That was a fun problem.
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Really enjoyed reading your blog today. Spent hours looking over your posts. I think your close up pics really make the site.
Thanks … appreciate the feedback.