How to Replace a 110V Fuse Holder

Written by robert osborne
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How to Replace a 110V Fuse Holder
Save money by replacing a fuse holder instead of discarding expensive equipment. (Stockbyte/Stockbyte/Getty Images)

Every electrical device can interrupt its power source to stop excessive current from flowing into the device. An electrical short is one result of this power imbalance problem. Fire is possible if the circuit is not immediately interrupted. Fuse use provides a cost-effective method of over-current protection. Fuses are placed into fuse holders, which are usually installed on the device's backside. Fuse holders break easily. Replace a broken fuse holder to allow an electronic device to function again.

Skill level:

Things you need

  • Fuse holder
  • Soldering iron
  • Electronic solder

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  1. 1

    Remove the power to the device. Do not attempt to work on equipment with a "live" power source.

  2. 2

    Remove equipment covers or panels to access the fuse holder's backside. Online service manuals often indicate the screws to be removed for fuse holder access. Screws are often hidden under labels or rubber footpads.

  3. 3

    Turn on a soldering iron. Remove the two wires soldered to the fuse holder. Heat the fuse holder terminals with the soldering iron until the solder is melted. Pull the wire ends free of the terminals.

  4. 4

    Remove the nut and lock washer on the fuse holder's backside. Pull the fuse holder out of the chassis.

  5. 5

    Place the new fuse holder into the chassis hole. Install the lock washer and nut. Tighten the nut until snug.

  6. 6

    Solder the two wires to the new fuse holder terminals. Place one wire into each terminal. Solder each wire in place using a soldering iron and solder.

  7. 7

    Reinstall the previously removed covers or panels.

  8. 8

    Insert the old fuse into the new fuse holder. Twist the cap off the old fuse holder by rotating the cap to the left. Remove the old fuse by pulling it straight out. Install the same fuse into the new fuse holder. Tighten the cap by rotating it to the right. Plug in the electrical device. Test the device for proper operation.

Tips and warnings

  • Some electronic devices have lethal interior voltages, even when not plugged in.
  • Seek professional technical help if you are not completely comfortable with working on electronics or electrical devices.

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