The setup seemed to work well initially but I have started experiencing some inconsistencies. One of the four relays is working perfectly fine, but the other three are not triggering as they should.
Here are the symptoms:
The LEDs on the non-working relays do light up when a signal is sent from the ESP32, indicating some form of communication. There is no audible 'click' sound from these relays when they are supposed to trigger. I noticed that if I gently tap the relay casing, the relay will sometimes trigger, and I can hear it closing. I had previously thought that I might have fried my first relay module so I replaced it, but the issue reappeared after a few days.
Any guidance would be greatly appreciated as I'm at a loss here. Thank you!