Difficulty

Moderate

Steps

6

Time Required

                          5 minutes

Sections

2

  • Shell
  • 3 steps
  • Switch
  • 3 steps

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Introduction

A faulty switch not only limits operation, but it is also a fire hazard. If the power switch on your Revlon 473 Hair Dryer isn’t functioning, a switch replacement can improve the operation and safety of the unit.

Disconnect the Revlon 473 from any power source before you begin this repair.

What you need

Step 1

              Shell
  • Before disassembly, make sure that the device is unplugged.
  • Remove the two 17.83 mm black screws located on the handle.

Before disassembly, make sure that the device is unplugged.

Remove the two 17.83 mm black screws located on the handle.

1024

Step 2

  • Separate the shell from the main component.
  • Check to ensure each piece is free from debris.

Separate the shell from the main component.

Check to ensure each piece is free from debris.

Step 3

  • Remove the casing from the heating element.
  • For reassembly, reattach the silver casing before the black cover.

Remove the casing from the heating element.

For reassembly, reattach the silver casing before the black cover.

Step 4

              Switch
  • Locate the two switches in the handle of the device.

Locate the two switches in the handle of the device.

Step 5

  • Set the multimeter to 200 ACV.

Set the multimeter to 200 ACV.

Step 6

  • Bring the probes toward each switch to test for continuity.
  • If the numbers on the multimeter continue to change, the circuit is closed and the switches are functioning.
  • If the meter stays at a set number, the circuit is open, and the switch needs to be replaced.
  • To replace a faulty switch, cut the wires and solder the wires back on to the new switch.

Bring the probes toward each switch to test for continuity.

If the numbers on the multimeter continue to change, the circuit is closed and the switches are functioning.

If the meter stays at a set number, the circuit is open, and the switch needs to be replaced.

To replace a faulty switch, cut the wires and solder the wires back on to the new switch.

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

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                    Jessica Leyva

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                       Cal Poly, Team 1-5, Propen Fall 2012                        

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