Introduction

Over time, the wire that runs up the back of the fan behind the blades may come into contact with the blades, and become damaged or severed. This guide is meant to show how to repair the damage.

Make sure the fan is unplugged. Unscrew the 6 screws on the front of the fan. Remove the face plate.
  • Make sure the fan is unplugged.

  • Unscrew the 6 screws on the front of the fan.

  • Remove the face plate.

  • Flip the fan and repeat for the 6 screws on the back. They are in the same position as the front.

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Unscrew the screws attaching the motor/blades to the frame. Unscrew the screws attaching the plastic frame to the motor.
  • Unscrew the screws attaching the motor/blades to the frame.

  • Unscrew the screws attaching the plastic frame to the motor.

  • The blades cannot be removed from the motor.

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Strip the wires using wire strippers. Strip the wires using wire strippers.
  • Strip the wires using wire strippers.

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Black Friday
Broken doesn't stand a chance.
Twist the ends of the wire together
  • Twist the ends of the wire together

  • Place wires in soldering kit arms.

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Plug in the soldering iron. When the soldering iron is hot, solder the wires together.
  • Plug in the soldering iron.

  • When the soldering iron is hot, solder the wires together.

    • Place the tip of the soldering iron on the wires directly.

    • Place the solder on the wire.

    • Remove the solder and soldering iron from the wire

  • Repeat this step with the second wire.

  • Soldering irons are very hot!

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Use electrical tape to insulate the wires. Wrap the tape around each wire. Wrap tape around the outside of all of the wires.
  • Use electrical tape to insulate the wires.

    • Wrap the tape around each wire.

    • Wrap tape around the outside of all of the wires.

  • Make sure to completely cover any exposed wire.

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Clean out the dust from the blades and motor using tweezers. Clean out the dust from the blades and motor using tweezers.
  • Clean out the dust from the blades and motor using tweezers.

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Tape wires along the frame to prevent further damage. Put the face plates back on and enjoy! Put the face plates back on and enjoy!
  • Tape wires along the frame to prevent further damage.

  • Put the face plates back on and enjoy!

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Conclusion

To reassemble your device, follow these instructions in reverse order.

Zach Emard

Member since: 09/29/2015

128 Reputation

1 Guide authored

Team

Cal Poly, Team 14-1, Green Fall 2015 Member of Cal Poly, Team 14-1, Green Fall 2015

CPSU-GREEN-F15S14G1

4 Members

4 Guides authored

2 Comments

Any tips for replacing the "Blue Plug" fuse after it's mysteriously blown in a Lasko box fan?

https://www.amazon.com/fused-safety-Lask...

I could hillbilly wire up a new plug to minimize the wire work, but don't want to start a fire either.

Zac Appleton - Reply

I would also like to know how to replace the plug end after the non-replaceable fuse inside the plug is blown.

Gung Ho - Reply

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