Timeline for What's wrong with my replacement fan motor?
Current License: CC BY-SA 3.0
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| Apr 28, 2018 at 4:40 | comment | added | Paul Logan | Your gratitude seems heart felt. When the rotor locks up it stressed the winding. The amp draw spikes up. The wire these windings is made from is slightly heavier than human hair. This stress can simply open the winding. Additionally, when the bearings wear out rotor no longer spins in the center. The rotor can wear into the windings and open them. And just because you find continuity across the winding that doesn't mean you have a properly completely circuit. The winding can short across each other. Your welcome. | |
| Apr 26, 2018 at 23:45 | comment | added | spaced - out | 2/2 To #2, that's what the tech I consulted thought too, that the bearing was dried out. I probably should have stated, he actually tried lubricating it for me and got it spinning freely but then when he applied power, the motor was lifeless. That's when the replace verdict was delivered. So I was wondering what else about the motor can fail and render it inert, since bearings aside I can't see much about it that can fail... | |
| Apr 26, 2018 at 23:36 | comment | added | spaced - out | 1/2 Thanks for the post! In regards to your points in answer to #1, I'm aware I'm probably not going to get the same performance as the OEM motor given the size/weight difference (I actually didn't realise till I received it that it's only half as thick). The question is more about why doesn't it at least spin up. The physical criteria actually seem pretty spot on, the mounting (with the adapted legs I made) and overall size fits in place quite nicely. The shaft diameter was smaller than the hole in the fan but I wrapped it and made it work. So should at least get the fan turning I thought. | |
| Apr 26, 2018 at 19:09 | history | edited | Freiheit | CC BY-SA 3.0 |
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| Apr 26, 2018 at 17:39 | history | answered | Paul Logan | CC BY-SA 3.0 |