Many modern appliances communicate error codes through flashing lights or digital displays, simplifying diagnostics. However, an intriguing lesser-known fact is that some machines still use Morse code-like sequences or tones for troubleshooting. This harks back to older methods of tech communication and requires a keen ear and a sharp mind to decode. The intersection of old communication forms in new tech creates a unique blend of skills for today's repair technicians. Have any of you come across such a "talking" appliance? Share your encounters with these cryptic communicators!