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.

Instructions

1. Shut off the electricity

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

2. Remove the drive belt cover

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

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.

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.

5. Reinstall the belt cover

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

6. Restore power

Plug the sewing machine into the electrical outlet.