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DISPENSER PRECAUTIONS

1. Water can only be dispensed continually for a maximum of 10 minutes.

2. Operating two buttons at the same time will stop the flow of water. To resume, return both buttons to their 

original position and try again.

3. When water has just begun to boil in the tank or when water temperature is high, air bubbles may enter the 

hot water pump, resulting in poor water flow. Please allow a few seconds for the water to settle and try 

again. 

4. When boiling has only just begun or if system has been inactive for a long  period of time, the first glass of 

dispensed water may not be as hot. 

5. In the process of boiling, the cover of the tank and the body of the heater may feel warm to touch. This is 

normal.

6. If the system is newly installed or has not been used for a long time, users are recommended to drain the hot 

water twice before consumption.  

FAUCET PRECAUTIONS

1. After 10 minutes of inactivity, the system enters sleep mode and the panel will only display the logo and child 

lock indicator. Touch any key on the panel to exit sleep mode. 

2. If the heat function of the system is deactivated, sleep mode will only display the logo, child lock indicator 

and the filter life indicator. 

THE WATER TANK

Power button

Heating should begin the instant the system is powered on. Press and hold the power button for 3 

seconds to power the system on or off. You should hear a beep each time the button is activated.

Precautions

1. To prevent freezing in an extremely cold environment, the system will automatically power on should the 

water temperature fall below 5ºC. 

2. If the system has been powered on and is maintaining a fixed temperature for over 3 days with no usage, the 

heat function will go off. Pressing any key on the system will reactivate it. 

FAULT CODES

Code

Possible reason

Code

Possible reason

F8

Dry heating

E1

Water temperature 
sensor fault

C4

Overheating

E6

Steam temperature 
sensor fault

C2

Level sensor data 
incorrect

C1

Level sensor failure

Summary of Contents for aosbath D25A2

Page 1: ...User Guide Hot Water Dispenser HWT3...

Page 2: ...rsonal injury or death The hot water tank should be installed under sink below the faucet Do not place the tank on the countertop or mount it on a wall The recommended height distance between the tank...

Page 3: ...ented heating system for safe and convenient under sink storage that does not give out steam The hot water inner tank material is a food grade 304 stainless steel tank and comes equipped with a self c...

Page 4: ...5 Replenish Mode Unlock the system to toggle between two replenishment modes Hot water button Room temp water button 6 Temperature Setting Unlock the system to toggle between four temperature modes Re...

Page 5: ...plete setup A buzzer will sound to signal an effective reset to factory settings Note If you do not hear the buzzer the system has not been reset Repeat the steps again Press or raise the hot water bu...

Page 6: ...fter 10 minutes of inactivity the system enters sleep mode and the panel will only display the logo and child lock indicator Touch any key on the panel to exit sleep mode 2 If the heat function of the...

Page 7: ...ser should be mounted on the countertop and the tank should be below it under the sink 2 Check that you have the necessary tools on hand for the installation An electric drill a pair of needle nosed p...

Page 8: ...visible Align the faucet with the mounting base and use a wrench to fix the nut firmly on to the mounting base 6 Tighten the nut Nut Wrench 7 Complete installation Place base cap above the nut to com...

Page 9: ...ocket 2 Before connecting the new water purifier to the hot water tank ensure the water purifier has been flushed correctly Exhaust Water purifier data cable Purified water feed tube Faucet data cable...

Page 10: ...r Check valve Heater cover steam condenser Right panel Water level sensors Thermal insulation Bottom cover Power supply board LED display Power button Solenoid valve Left panel Heating indicator Heati...

Page 11: ...nted circuit board Fuse Primary heating element Water Purifier Heating element Thermostat Water level sensors Filter replacement data cable SYSTEM Solenoid valve Purified water direct from filter Room...

Page 12: ...water leaks Water purifier connection is disconnected Reconnect water purifier and faucet dispenser Faucet dispenser is faulty Replace faucet dispenser Circuit board failure Call AOS Bath service hot...

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