Display: The Ring, Water Purifier Tds Value, Ppm, And Button Lights Are Always On When The Machine Is Working; The Bazi Displays The Pure Water Tds When The Machine Is On, And Does Not Display When It Is Turned Off; 1 Minute After The Water Is Full, The Screen Goes Off And Goes To Sleep Mode, The Ring Flashes In The Form Of A Breathing Light, With A Frequency Of 2 Seconds On And 2 Seconds Off. Flushing Flashes And The Ring Rotates: Power On And Automatically Flush For 18 Seconds. After The Water Is Full, It Will Automatically Flush For 5 Seconds. Each Time You Exit From The Water Shortage Program, It Will Automatically Flush For 18 Seconds. Short Press The "Function" Button, Automatic Flushing For 18 Seconds, Cumulative Water Production For 2 Hours, Flushing For 18 Seconds. (When Micro-Wastewater Is In Normal Mode) (Pump Works, Water Inlet Valve Opens, Flushing Valve Opens) Water Production: When The High-Pressure Switch Detects That The Water Pressure Is Lower Than The Set Value (The High-Pressure Switch Is Closed), The Pure Water Machine Will Produce Water. When Making Water, The Low-Pressure Switch Is Turned Off (Within 60 Seconds) And The Water Pressure Light Is Always On. (The Pump Is Working, The Water Inlet Valve Is Open, And The Flush Valve Is Closed) Water Full: When The High-Pressure Switch Detects That The Water Pressure In The Pressure Barrel Reaches The Set Value (The High-Pressure Switch Is Turned On), The Pure Water Machine Directly Enters The Water Full Process. Light: When The Water Is Full, The Light Is Always On. (Pump Stopped, Water Inlet Valve Closed, Flush Valve Closed) Water Shortage: When There Is Water Shortage For 60 Consecutive Seconds, The Water Shortage Flashes And The Buzzer Sounds 5 Times. (The Pump Stops, The Water Inlet Valve Is Closed, And The Flushing Valve Is Closed); Maintenance: The Water Pump Has Been WorkingContinuously For 3 Hours And Is Not Full Of Water. The Water Pump Will Be Reported For Maintenance; The Water Full, Water Production, Flushing And Water Shortage Lights Will Flash At The Same Time, And The Buzzer Will Sound 10 Times To Cancel The Maintenance. Need To Power On Or Power Off Again. (Pump Stopped, Water Inlet Valve Closed, Flush Valve Closed) Description: 1. Scope Of Application: 800G And 800G Pure Water Machines 2. Working Voltage: DC24V 3. Inlet Water Pressure: Daily Tap Water 4. Power Consumption: Less than 2 W 5. Working Temperature: -20C~70 6. Working Humidity: 5%~85% Material: PCB colour: Package Contents: 1 x Water Purifier Mainboard Module 1 x Flex Cable 1 x Probe Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.