Q: What indicators on different Aquaguard RO models signal that service or repair is needed? A: Aquaguard purifiers use various visual and audio signals across different models to indicate filter exhaustion or system errors: Service / Filter Life Indicator Blinking: On models with LED icons (like Geneus, Enhance, or Select), a blinking orange/red LED means the filter life is almost over and requires replacement soon. Solid Red / Alarm Sound (Electronic Lock): Many digital models feature auto-shutoff security. Continuous beeping or a solid red light indicates the filter cartridge is completely expired or an electronic fault has occurred, locking the machine until serviced. UV Fault Alert: On UV+RO models, a rapid alarm or red UV indicator means the UV lamp or ballast requires replacement to ensure water disinfection. Slow Water Flow or Trickling Output: Taking significantly longer to fill the storage tank indicates clogged pre-filters or membrane scaling. Change in Water Taste or Smell: A metallic, salty, or stale taste signals filter saturation or tank contamination. Continuous Wastewater Flow or Water Leaking: Wastewater running constantly down the drain even when the tank is full points to a faulty solenoid valve or auto-cut-off switch.