Electric fan repair

[Tom Servaes]

I've given it my best, but I think I've reached the end. We got a donation of a powerful fan that we would have liked to convert to do air cleaning in the wood shop. The fan didn't work, but we were going to investigate. 

I've now given it one last try and found that the thermal fuse (X22 UMI) has blown. Given that it was calibrated to blow at 215 Celsius, I'm thinking that something went seriously wrong before we received it as a donation. 

Can suggest something that may have caused this type of heat and is fixable? If not, I'm sad to say we'll have no choice but to throw out the fan and motor. 

Let me know if you have any suggestions.

Thanks,

Tom

PS. We do have a box fan in the wood shop and it works great. Thanks Téa for setting that up!

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Tom Servaes

There's a war going on for your mind. If you're thinking, you're winning.

cell:902-449-4555
mailto:tom.s...@gmail.com


"The single biggest problem in communication is the illusion that it has taken place." – George Bernard Shaw
"Everything is vague to a degree you do not realize till you have tried to make it precise." – Bertrand Russell

[Adam Smith]

Thoughts as to why it overheated:
Wrong/over voltage
Motor physically stalled
Coil failed and shorted
Someone used the fan when a 10ton A/C unit should have been used instead

[Bill Morrow]

Are the bearings OK?

[Tom Servaes]

Many thanks for the suggestions, Adam and Bill!

I will check those out tomorrow when I am at the space in the morning.

Tom

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[Téa Chen]

It might have overheated due to the filter.  Strapping 1" filters to the back of a box fan can impede the flow too much.  I have a 4" filter at home that I was going to bring in later.  The other option is to build a box using 3 1" filters, but I'm more inclined to just duct tape a 4" to the back.  :)

Téa

[Tom Servaes]

No worries. Yours still works, very well.

Tom

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[Shawn Wilson]

No, the box fan is working fine (when the filter is vacuumed).  Tom is talking about a dumpster find that Peter brought in to see if it could work.

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