For detailed visual steps and safety warnings, you can refer to the official Aqmos Installation Manual Aqmos R2D2 Setup Guide Video for your specific local water hardness? Betriebsanleitung - AQMOS Wasseraufbereitung
The R2D272 includes a vertical masking sticker sheet. Cut and apply these over the lens segments to: aqmos r2d272 installation new
| Issue | LED behavior | Fix | |-------|--------------|-----| | Won’t power on | No LED, no relay click | Check polarity (+ to +12V, – to GND). Measure voltage at sensor terminals. | | Constant alarm | LED always red | Microwave interference: reduce RNG. Or broken PIR: replace unit. | | No detection | LED never red | PIR sensitivity too low. Turn PIR pot fully CW. Walk test within 2 meters. | | Intermittent tamper | Tamper LED flashes | Tighten front cover screws. Inspect backplate seating. | | Detects only long range | LED lights at 8m but not at 2m | PIR dead zone. Lower mounting height by 10cm. | For detailed visual steps and safety warnings, you
| Test | Procedure | Result | |------|-----------|--------| | Power cycle | Unit restarts without error | Pass | | LED indicators | PWR, RUN, ERR, COMM all behave per manual | Pass | | Digital Input 1 | Simulated 24V → status bit = 1 | Pass | | Relay Output 1 | Commanded ON → measured continuity | Pass | | Ethernet ping | 0% loss, <1 ms latency | Pass | | Modbus polling | Holding registers readable via RS485 | Pass | Measure voltage at sensor terminals