Sterra S Tankless Water Purifier
Sterra S — Cannot Dispense Cold Water
If your Sterra S is dispensing room-temperature water instead of crisp, chilled water, don't worry! This is usually caused by an unintended button lock, a dusty ventilation filter, or trapped heat. Follow these 4 simple steps to get your cold water r
Sterra S — Cannot Dispense Hot or Warm Water
If your Sterra S is refusing to dispense hot or warm water—or if the buttons don’t seem to respond when you select a hot temperature—don't worry! This is usually caused by an active safety child lock or a temporary system freeze rather than a broken
Sterra S — Cannot Dispense Water or Volume LED Flickers Continuously
If your Sterra S stops dispensing water entirely and the 120 mL, 250 mL, or 550 mL lights are flickering continuously, your machine is triggering an automatic safety alert. This means the purifier is completely starved of incoming water and has pause
Sterra S — Cold Room and Warm Icons with Volume Icons Lit on Touch Panel
If your Sterra S touch panel is showing every icon (Cold, Room, Warm, and all Volume sizes) lit up at once, the machine has entered a System Firmware Lockout. This is a protective mode that happens when the internal computer detects a minor voltage f
Sterra S — Filter Indicator Light Still Blinking After Filter Replacement
If you have just installed brand-new filter bottles into your Sterra S but the filter indicator light is stubbornly blinking, don't worry! Your machine is completely healthy. Our purifiers calculate filter life using an internal countdown chip. The m
Sterra S — How to Change Default Temperature Setting
By default, your Sterra S is programmed to select Room Temperature water every time you step up to use it. If your household prefers drinking chilled water, you don't have to press the "Cold" button every single time you want a drink! You can easily
Sterra S — How to Deactivate Child Lock or Safety Lock
For your family's safety, your Sterra S is programmed out of the box with an automatic Child Safety Lock on the hot water function. This lock ensures that hot water cannot be dispensed by accident, preventing painful scalds. If you do not have small
Sterra S — How to Disable Cold Water Function
If your household prefers room-temperature water, or if you are leaving your home for a vacation and want to save electricity, you can completely turn off the cooling engine on your Sterra S without disabling the rest of the machine. Follow these qui
Sterra S — Leakage at T-Valve Tubing or Tap Adapter Connection
If you notice water pooling, dripping, or spraying from the T-valve connection under your sink, the white plastic tubing, or the faucet tap adapter feeding your Sterra S, please take action immediately. Because this connection hooks directly into you
Sterra S — Machine is Causing a Power Trip
If your circuit breaker clicks off or your home's electricity completely cuts out the moment your Sterra S is plugged in or begins heating, please take immediate safety precautions. An electrical trip indicates that a safety mechanism in your home is
Sterra S — Machine is Hot or Overheating
Like a computer or a refrigerator, your Sterra S has internal motors (a cooling compressor and heating coils) that generate heat while keeping your water at perfect temperatures. To stay cool, the machine needs to "breathe." If dust blocks its vents,
Sterra S — Noisy or Loud Sound from the Machine
It is completely normal to hear a low, gentle hum from your Sterra S when it is actively chilling or heating water. However, if the machine suddenly starts making a loud buzzing, rattling, or heavy whirring sound, it usually means the internal fan is
Sterra S — Nozzle is Leaking
If you notice your Sterra S is constantly dripping water from its front nozzle, or if water is slowly leaking or pooling around the dispensing tray when the machine is idle, please take immediate action. Because the water inside the unit is held unde
Sterra S — Nozzle is Stuck Broken or Damaged
If the dispensing nozzle on your Sterra S has been physically damaged, is loose, cracked, or has become completely stuck in place, please treat this with caution. Because the front nozzle connects directly to the internal high-pressure water system,
Sterra S — Room Icon and Volume Icons Lit on Touch Panel
If your Sterra S touch panel has frozen with the Room Icon and all Volume Icons lighting up simultaneously, your machine is displaying an internal error code. This pattern appears when the purifier detects that it cannot pull in enough water or when
Sterra S — Room Warm and Hot Icons with Volume Icons Lit on Touch Panel
If your Sterra S display screen is frozen with the Room, Warm, Hot, and Volume Icons all turned on at the same time, your machine has activated its thermal safety lock. This happens when the internal heating system becomes too hot due to restricted a
Sterra S — Slow Water Flow
If your Sterra S is suddenly trickling, dispensing slowly, or taking much longer than usual to fill a glass, the system is likely suffering from a drop in incoming water pressure. Follow these 3 quick checks to restore your machine's standard, steady
Sterra S — Sparks Inside the Machine
If you see, hear, or smell sparks coming from inside your Sterra S water purifier, treat this as an immediate hazard. An internal electrical arc or short circuit is occurring. For your personal safety and the protection of your home, do not attempt t
Sterra S — Touch Panel Buttons Not Lighting Up
If your Sterra S touch screen has gone completely dark and the buttons do not illuminate or respond when touched, your machine is experiencing a total power delivery lock. When this happens, the internal system freezes operations as a protective safe
Sterra S — Unpleasant Taste or Odour from Dispensed Water
If the water dispensed from your Sterra S suddenly has an unusual taste or a noticeable smell, it doesn't mean your machine is broken. In most cases, this happens when mineral sediment settles in the lines or when a dusty rear filter traps ambient ki
Sterra S — Visible Minerals or Air Bubbles in Dispensed Water
If the water from your Sterra S looks cloudy, milky, or contains tiny white particles, there is no need to worry. This is a common, safe phenomenon that usually points to one of two things:. Micro-Air Bubbles: Microscopic pockets of air trapped under
Sterra S — Water Leakage from the Machine
If you notice water pooling around or leaking from your Sterra S, do not panic. Follow this quick guide to locate the source of the leak, stop the water flow, and determine if it can be fixed instantly or requires a technician visit. Before inspectin
Sterra S — Error Icons Lit on Touch Panel — Temperature and Volume Icons
If your Sterra S touch panel is locked up with both the Temperature (Cold/Warm/Hot) and Volume icons illuminated at the same time, your machine is experiencing a System Overheat and Water Starvation Lockout. This means the machine is out of water, wh
Sterra S - Filter Replacement Guide
Replacing the filters on your Sterra S is a quick and simple process. Follow these 6 steps to ensure a safe and successful filter replacement:. Shut Off the Water: Close the water supply valve to completely stop the water flow to the machine. Flush R