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1 Convection fan hums but doesn't turn.
The convection fan isn’t turning when trying to use the convection setting on the Breville toaster oven. Motor hums (60 Hz I believe) when trying to turn. Everything else works fine. Heating elements, display, etc.
Convection fan turns freely by blowing pressurized air across blades with power off or convection setting off. The fan will continue to spin for 30 seconds or more.
If the fan is spun initially and the convection function is then turned on, the fan quickly slows and stops.
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6 Comments
Have you ohmed it out? Check the motor for specs and check amp draw. Might have bad windings on it.
brandon k tarafından
Will do, if I can get to the motor. From what I've seen on the web, these things are a bear to take apart. Apparently, a really long screwdriver is needed to reach from the back to the front at some point.
Chad Huffman tarafından
Opened it up and was able to get to the motor. Resistance was 150 ohms. Looked for specs (SDR5812-01A15 120V 60Hz 15W). Only thing I was able to find was that this part is no longer available on a couple of repair websites.
Turned motor several times by hand, no real resistance. Noticed some play (~1mm or maybe less) where shaft can go in and out. Pushed and pulled along axis and turned motor. Noticed some minor scraping from the fan blades inside the oven (couldn't see these). Assumed it may be crud and did it a few more times and the scraping decreased.
Put motor straight to 120V 60Hz. Motor turned no problem. Put everything back together and now it works.
Motor does make a low, dull knocking sound when turning (not tinny like the fan blades are hitting something). Don't really know if it was doing this before.
I suspect the bushings are going bad and the "fix" is only temporary. Guess I'll start saving up for another one.
Chad Huffman tarafından
@cbhuffman very odd... normally bearings go (screeching/grinding/whining sounds) or fan is hitting something... sounds you described is very 9dd indeed. And yeah I can't source a motor n either. And it is such a strange looking motor i can't think of one that could be used in its place.
brandon k tarafından
My son bought us this one in 2019 - fan died in just over a two years. The Delonghi I threw away was still working after over 15 years. Oh well.
larry ciummo tarafından
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