How to Replace a Sewing Machine On/Off Switch



This DIY repair guide explains how to replace the on/off switch on a sewing machine. The on/off switch turns on the sewing machine's power and work light. If the work light won't come on with a new bulb when you turn on the on/off switch, replace the switch with the manufacturer-approved replacement part.

Use these steps to replace the on/off switch in common Kenmore and Brother sewing machines.

Repair difficulty:
Time required:

Less than 30 min.

Part Required

  • On/Off switch

For manuals, repair guides, and specific part recommendations, enter your model number.

Tool Required

  • Phillips screwdriver
  • Work gloves

Before you begin

Wear work gloves before you begin.


 Warning: Undertaking repairs to appliances can be hazardous. Use the proper tools and safety equipment noted in the guide and follow all instructions. Do not proceed until you are confident that you understand all of the steps and are capable of completing the repair. Some repairs should only be performed by a qualified technician.

How to Replace a Sewing Machine On/Off Switch

Step 1: Shut off the electricity

Unplug the sewing machine’s power cord from the wall outlet.

Step 2: Remove the drive belt cover

Remove the screws securing the belt cover to the sewing machine and pull the belt cover off.

Step 3: Remove the On/Off switch

Remove the screws securing the On/Off switch to the mounting bracket.


Remove the terminal block mounting screws and remove the terminal block.


Disconnect the On/Off switch wires from the terminal block and remove the On/Off switch.

Step 4: Install the new On/Off switch

Connect the new On/Off switch wires to the terminal block.


Reinstall the terminal block and screws.


Position the new On/Off switch on the mounting bracket and reinstall the mounting screws.

Step 5: Reinstall the belt cover

Position the belt cover on the sewing machine and reinstall the belt cover mounting screws.

Step 6: Restore power

Plug the sewing machine into the electrical outlet.

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