P/N
241417
Rev 4
Effective: 12-04-12
Replaces: 10-07-11
Page 11
THERMOSTAT OPERATION - ADVANCED FLAME TECHNOLOGY (AFT) BOARD
PROGRAM BUTTON
LCD Display
Temp Buttons
Mode Button
The pool heater touchpad, located on the upper front panel
of the heater, allows the user to select either POOL or SPA
operation, and to adjust the setpoint temperature. The LCD
display window indicates the mode (OFF, SPA, POOL) and
the actual water temperature. A manual power switch pro-
vided below the touchpad turns the control power ON or
OFF.
Mode Button
The MODE button is used to select either POOL or SPA op-
eration. It also allows the user to turn the heater off elec-
tronically, allowing the LCD display to remain energized and
to continue showing the actual water temperature.
Temp Buttons
If the heater is in POOL or SPA mode, the desired water tem-
perature (SETPOINT) will also be displayed and may be ad-
justed using the UP or DOWN buttons.
Operation
In the POOL or SPA modes, the actual water temperature is
displayed along with the desired water temperature (SET-
POINT). When the water temperature is above the setpoint,
“Water Temp” will alternate with “No Demand.” When the
water temperature is below the setpoint and the heater is fir-
ing, “Water Temp” will alternate with “Heating.”
To adjust the setpoint temperature, make sure the control is
in the appropriate mode (POOL or SPA) and push the UP or
DOWN buttons.
Service Menu and Fault History
To access the Service Menu and fault history, press the
MODE and UP buttons simultaneously for 3 to 5 seconds.
The heater will continue to operate normally while in the
Service Menu. The first screen displayed is the Flame
Strength indicator, which indicates the pilot flame current
ALTERNATING DISPLAYS DURING HEATING
FLAME STRENGTH INDICATOR
SUPPLY VOLTAGE INDICATOR
RUN TIME INDICATOR
Press the DOWN button. The Supply Voltage screen indi-
cates the voltage supplied to the control board. Normal read-
ings range from 24 to 29 volts.
Press the DOWN button. The Run Time indicates the total
hours of operation for the pool heater, as measured by the
amount of time that the main gas valve has been powered.
The Cycle count indicates the number of on/off cycles of the
heater, as measured by the number of times the pilot valve
has been powered.
using a bar graph and numerical display. A signal of less
than 4 indicates a weak flame signal and may require serv-
ice. Refer to Section 5 – Troubleshooting for possible
causes and corrections.
FAULT HISTORY
Press the DOWN button. The Fault History can display up
to ten faults in memory. The order of the faults begins with
“Fault Last,” which is the most recent fault, and proceeds
through ten most recent messages in chronological order.
The second line of the display shows the fault message. If
there are no faults in the history buffer, the second line reads
“All Faults Clear.”
