The above answers apply if the problematic switch still works but just needs a spacer to trigger (e.g., due to the button wearing out). However if the switch no longer works (as was the case for me), I was able to find replacement switches on Amazon at very low cost. Here's an example: https://www.amazon.com/dp/B09R42T3CB. Key words I used for search: SPST push button momentary switch, 6mm x 6mm x 5mm.
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The above answers apply if the problematic switch still works but just needs a spacer to trigger (e.g., due to the button wearing out). However if the switch no longer works (as was the case for me), I was able to find replacement switches on Amazon at very low cost. Here's an example: https://www.amazon.com/dp/B09R42T3CB. Key words I used for search: SPST push button momentary switch, 6mm x 6mm x 5mm. Replacing the switches require soldering equipment but it wasn't too difficult to do.
The above answers apply if the problematic switch still works but just needs a spacer to trigger (e.g., due to the button wearing out). However if the switch no longer works (as was the case for me), I was able to find replacement switches on Amazon at very low cost. Here's an example: https://www.amazon.com/dp/B09R42T3CB. Key words I used for search: SPST push button momentary switch, 6mm x 6mm x 5mm.