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Hayden Colf
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Hello, I have a 2013 lasko 3733 that had a thermal fuse bypass and the two wires touch it buzzes but doesn’t  move the shaft. One of the wires (goes to the capacitor) has a copper wire attached to it and the other wire going to the switch doesn't. It worked before and now it doesn't because of wire disconnection so I touched them together and now its doing nothing but buzzing. Any ideas? (By the way the thermal fuse blew thats why it was bypassed)





Tom Zapf
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can you turn the fan by hand? 

Hayden Colf
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Yes it turns by hand but windings wont turn it

Tom Zapf
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SOUNDS LIKE YOU ARENT GETTING POWER TO THEM THE THERMAL CUT OUT  MIGHT HAVE QUIT, AND YOU HEAR BUZZING FROM POWER GETTING THROUGH THE LITTLE SQUARE BOX MOST OF THEM HAVE

Hayden Colf
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Do you think I could get it to work again or do I need to order a thermal fuse?

Rob Duffy
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Hayden Colf wrote: Do you think I could get it to work again or do I need to order a thermal fuse?I think you're going to be spending far more than that motor/fan is even worth. Chances are, the motor is shorted somewhere within the coils so replacing a thermal fuse may not even help. It popped for a reason. These aren't meant to last long at all.

What you can do is bridge where the thermal fuse is to bypass it and then check for continuity, but I highly DO NOT RECOMMEND running these motors without a thermal fuse. I've seen them burn homes down.

Hayden Colf
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Do you know why it would be buzzing? I doubt it shorted because that would've killed the plug's fuse.. And the bypass just stopped out of the blue after it being oiled.

Rob Duffy
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Hayden Colf wrote: Do you know why it would be buzzing? I doubt it shorted because that would've killed the plug's fuse.. And the bypass just stopped out of the blue after it being oiled.The fuse plug does not always fail and burned out motors can hum and not do anything. It all depends on how the motor failed. I've seen several different ways a motor can burn out.


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