Use And Care Manual

whl-590 Rev. 003 Rel. 003 Date 3.22.18
47
Part 9 - Controls
A. Control and Display Overviews
Figure 47 - Control Panel Detail
Figure 48 - LCD Display
B. Start-Up Sequence
After the appliance is powered ON, the LCD display shows a sequence
of information. The icons will ash, followed by various indicators that
describe the appliance controller and software versions. It will take the
appliance roughly 15 seconds to cycle through the Start-Up Sequence.
Display Items Time for Display Remarks
LCD Test
1 sec All segments “ON”
0.5 sec All segments “OFF”
Category
WGRGH-150 / 199
1 sec Pdn
1 sec 0061
Software Version for
Front Panel
1 sec SPn
1 sec 00.xx
Software Version for
Water Heater
1 sec SFn
1 sec xx.xx
Hardware Version for
Water Heater
1 sec Hdn
1 sec 00xx
Table 25 - Start-Up Sequence
LCD also features a backlit lamp that will illuminate:
t When a user action is detected (a button is pressed)
t The display has timed out for approximately 2 minutes
After start-up, the display appears as follows.
Figure 49 - Initial Display Screen
The Control System can operate through user and service modes
that have specic LCD outputs and dedicated controls, including:
t Changing the DHW Set-Point Temperature
t Changing Time
t Status Display
t Installer Mode
t Error Mode
t High Elevation Mode
t Lock Function
NOTE: The Control System will not allow changes if Lock Mode is
activated. Press and hold the
button is pressed for ve seconds
to unlock the control.