🛠️ Why Did My Garage Door Remote Range Drop After Installing a Shelly?
🛠️ Why Did My Garage Door Remote Range Drop After Installing a Shelly 1? Adding smart control to your garage door motor is a great way to blend convenience with automation. But what happens when that clever addition unexpectedly kills your remote control range? If you've added a Shelly 1 to your garage motor and suddenly your 433 MHz remote only works from 2–3 metres away , you're not alone—and you're not going crazy. Here’s what’s really going on. 🔍 The Symptom After integrating a Shelly 1 , powered via a 24V DC wall wart , into your garage door motor's control circuit, you noticed a drastic drop in 433 MHz remote range : Before Shelly: Remote worked 10+ metres away After Shelly: Range dropped to < 3 metres , sometimes needing to be right next to the motor That’s a massive and very noticeable degradation in performance. But why? ⚡ The Cause: RF Noise from Power Supplies The root cause is electromagnetic interference (EMI) —specifical...
