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It will then monitor the water tem- perature and turn the heater back on when it senses that the water temperature is falling below the set point. It is normal to experience small fluctuations in the return water temperature during the operation of the heater. The thermostat is calibrated with a very narrow tolerance to ensure accuracy of the set temperature. Thus, slight fluctuations in water temperature may cause your heater to cycle on and off frequently. This is not a problem. It will not harm the heater nor interfere with the thermostat’s ability to precisely control the tem- perature of the pool or spa. WATER TEMP SET POINT MODE TEMP Fig.# 9480 LCD Display Temp Buttons Mode Button THERMOSTAT CONTROL OPERATION The pool heater thermostat, located on the upper front panel of the heater, controls the pool/spa water temperature. This control center contains a mode button, up and down temperature adjustment buttons, and an LCD display. Mode Button The MODE button functions as a means to turn the heater off or on in either the POOL or SPA setting. The LCD display indicates the mode the heater is in and the actual water temperature. Temp Buttons If the heater is in POOL or SPA mode, the desired water temperature (SETPOINT) will also be displayed and may be changed using the UP or DOWN buttons. A manual toggle switch is also provided right below the MODE button to allow the heater to be turned off. Operation In the POOL or SPA modes, the actual water temperature is displayed along with the desired water temperature (SETPOINT). If the heater is firing, a flame icon will be visible. To adjust the setpoint temperature, make sure the control is in the appropriate mode (POOL or SPA) and push the UP or DOWN buttons. Program button Mode Pool or Spa Actual Water Temperature Flame Icon Setpoint Temperature DISPLAY CALL FOR HEAT Fault History File To access the Fault History File, press the Mode button until the display reads OFF. Press both the “UP” and “DOWN” buttons at the same time (5-7 seconds) until the display changes and shows a fault code. The latest fault code will be displayed first. By pressing the “UP” or “DOWN” buttons, a series of faults will be displayed from the last (highest number) to the first (lowest number). If the buttons are not touched after 5-7 seconds, the display will return to its normal operation. 33 Program Button 1) To access the program screen, press the Mode button until the display reads OFF. Remove the four screws holding the control cover on. Swing control panel down so the back side of the board is visible (see page 30). Locate the Program Mode button as shown in the figure on pg. 32. Press the program button (5-7 seconds) until SETdef appears on the digital display. Release the program button. 2) Press the Mode button sequentially until the desired program event is reached. There are 5 different events that can be programmed. They appear in the sequence listed below: set Resets board to factory default settings. Resets faults in the History File. Change from Fahrenheit to Celsius. SPA setpoint maximum adjustment. POOL setpoint maximum adjustment. SETdef – Default Settings Refer to step one above to access the program screen. SETdef should appear on the screen. If not, press the Mode button until SETdef appears on the digital display. Press and hold both “UP” and “DOWN” buttons for 5-7 seconds until 3 dashes (---) appear. This operation resets the operating program to its factory default values. Both the POOL and SPA setpoints will revert to 65°F (18.5°C) and both POOL and SPA maximum temperature settings will be 104°F (40.0°C). Once this is done, reassemble the control panel. RESfl – Reset Fault History Refer to step one above to access the program screen. Press the Mode button until RESfl appears on the digital display. Press and hold both “UP” and “DOWN” buttons for 5-7 seconds until 2 dashes (--) appear.This operation resets the Fault History file to “0” and clears all the stored faults. Once this is done, reassemble the control panel. F/Cfff – Fahrenheit to Celsius Refer to step one above to access the program screen. Press the Mode button until F/Cfff appears on the digital display. The digital display is capable of displaying Celsius as well as Fahrenheit temperatures. The “UP” or “DOWN” buttons will select “F” or “C” on the temperature display. Choose the desired temperature scale. Once this is done, reassemble the control panel. SETspa 104 – SPA Set Point Maximum Adjustment Refer to step one above to access the program screen. Press the Mode button until SETspa 104 appears on the digital display. Using the “UP” and “DOWN” buttons will change the Maximum Temperature Setting to your desired value. The control can be set for a maximum of 107°F. Once this is done, reassemble the control panel. SETpool 104 – POOL Set Point Maximum Adjustment Refer to step one above access into the program screen. Press the Mode button until SETpool 104 appears on the digital display. Using the “...

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