Yes, you can use a grill ignitor replacement kit to fix a broken igniter. The process involves installing the replacement kit following these steps: 1. Turn off the gas supply and disconnect the grill from the power source. 2. Remove the old igniter and replace it with the new one according to the kit's instructions. 3. Reconnect the gas supply and test the igniter. Keep in mind that using a replacement kit may have benefits, such as restoring the convenience of an automatic ignition, but it could also have potential drawbacks, such as the need for installation and potential costs.