19
Service Menu and Fault History
To access the Service Menu and fault history, press
the MENU/SET and UP buttons simultaneously for 3 to
5 seconds. The heater will continue to operate nor-
mally while in the Service Menu. The first screen
displayed is the Flame Strength indicator, which indi-
cates the pilot flame current using a bar graph and
numerical display. A signal of less than 4 indicates a
weak flame signal and may require service. Refer to
Section 5 – Troubleshooting for possible causes and
corrections.
Program
button
FLAME STRENGTH INDICATOR
SUPPLY VOLTAGE INDICATOR
RUN TIME INDICATOR
Press the DOWN button. The Supply Voltage screen
indicates the voltage supplied to the control board.
Normal readings range from 24 to 29 volts.
Press the DOWN button. The Run Time indicates the
total hours of operation for the pool heater, as meas-
ured 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.
FAULT HISTORY
Press the DOWN button. The Fault History can dis-
play 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.”
Thermostat Operation—
Advanced Flame Technology (AFT) Board
Summary of Contents for 106
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