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1. IMPORTANT

Please read this manual carefully before using the product and store it for future reference. 

If the user installs the hot water dispenser by themselves or does it by using the self-prepared installation 

materials, AOS Bath will not be liable for any adverse effects on the normal operation and service performance of 
the system. 

The maintenance of this machine requires the use of approved parts and the problems caused by the use of 

unauthorized parts (degradation of performance or property damage) are not covered by the manufacturer's 

limited warranty. If any components require a change, consumers should contact the local authorised dealer. 

This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental 

capabilities, or lack of experience and knowledge.

Warning

: Failure to follow these instructions may lead to risk of fire and could cause property damage and or 

personal 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 and faucet is 60-80cm

Maintain a safe distance from the faucet 
exhaust and water outlet to prevent 

scalding. 

Do not disassemble or modify this system. 

Do not expose the system to corrosive 
substances.

Disconnect the system from power source 
during installation and troubleshooting. Do 

not touch power plug with wet hands. 

Do not use a power supply that exceeds the 
specifications of the machine. Ensure the 

power cord and socket are in good 

condition. 

If any abnormality occurs, stop operation of 
the system immediately.

Do not cover the appliance with 
a cloth or cover the faucet 

exhaust hole. 

The system must be paired with 
a compatible A. O. Smith RO 

Water Purifier. 

The tank should not be exposed 
to water. 

Do not place the machine close 
to a fire source. 

The system must be connected 
to a socket with a reliable 

grounding. 

Use an independent use a 
power socket with a minimum 

rated current of 10A. Ensure all 

connections are secure. 

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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