A.O. Smith CEWHR Series User Manual page 12

Timer off mode
4. Setting the clock
Ensure you are in 'timer off' mode, then hold down the 'Program' button for 3 seconds till the time on
the screen flashes. Press the " ‡ " the " ˆ " buttons to set the hour, then press the 'Program' button
again to confirm the hour. At this point, use the " ‡ " and" ˆ " buttons to set the minute. Holding down
the adjustment buttons will cause the digits to increase or decrease continually. Press the 'Program'
button to confirm the minute. At any point after 10 seconds of inactivity, the system will exit setting
mode and the time at that point will be saved.
5. Setting the first timer
Users can determine a time range for their showers so the heater can automatically ensure water is
heated during this period of time. At other times, the water heater will go into energy saving mode,
storing water at a lower temperature to optimize heat retention and thus, saving energy. The timer
will only work in standard mode.
Before setting the timer, ensure the clock is adjusted to the right time. Note that the timer start time is
set first, followed by the end time. If users choose not to activate the timer function, press the
'Program' button repeatedly till the 'Timer 1' and 'Timer 2' indicator lights are off.
Press 'Program' button till the 'Timer 1' indicator is lit, then press and hold down the 'Program' button
for 3 seconds till the time on the screen flashes. The indicator lights for 'Timer 1' and 'On' should be lit
as you are now setting the start time for Timer 1. Press the " ‡ " the " ˆ " buttons to adjust the start
time. The " ‡ " and " ˆ " buttons are programmed to make 30min increments or decrements. Press the
'Program' button again to finalize the start time and to start setting the end time. The end time is set
in the same manner as the start time. While setting this timing, the indicator lights for 'Timer 1' and
'Off' should be lit.
For example, if the timer is set from 20:30 – 22:00, the setting panels should look like these:
Setting the start time for timer 1
Timer on mode, where timer
lights are showing
Setting the start time for timer 2
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