10
Directions for use
Before using the water heater, make sure it is filled with water and that the power source has been
connected properly. Please wait for 30 minutes before using the heater for the first time.
Temperature setting
Set the temperature by adjusting the temperature setting knob on the right side of the water heater. The set
temperature goes up when turning down the knob and goes down when turning upwards. The default
temperature setting is the highest temperature.
Operation
After making sure the heater is filled up, turn the power on. The indication light will be lit as the water is
heating. The indication light will go off when the water has been heated to the set temperature.
Note: Water dripping from the safety valve outlet during heating is a normal occurrence. Under normal
conditions, the safety valve lever should be opened periodically. If water flows from the valve, it is in good
working condition. Otherwise, please contact a local authorized A. O. Smith dealer.
Maintenance instructions
DECLARATION:
Only an A. O. Smith authorized service personnel may maintain and repair this water
heater. Improper methods could result in serious injury or property damage.
WARNING - Electric shock:
Before repairing the water heater, be sure to disconnect the water heater from
the power source.
CAUTION:
Prior to repair works, please refer to the troubleshooting chart.
Maintenance
If the water heater needs to be serviced, close the water inlet valve, then open the drain valve. Rotate the
handle of the relief valve, release the nut connected to the water outlet joint of the inner tank and drain the
water from the discharge pipe.
It is recommended that the tank be flushed to remove sediments which may have built up during operation.
Specific operating procedures are as follows:
1.
Disconnect the power.
