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ONLY USE GENUINE HAYWARD REPLACEMENT PARTS
51300803801 REV B
FAHRENHEIT OR CELSIUS:
The temperature can be displayed in Fahrenheit or Celsius. To change the display, use the “MODE” button to
place the heater in “STANDBY”. Then press and hold the “( + )” and “MODE” buttons until the display shows the °F/°C selection. Press the
“( - )” button to toggle between selections. To accept the selection, press the “MODE” button. If the user does not act, the selection will be
automatically accepted after 60 seconds.
TEMPERATURE ADJUSTMENT:
This control allows the user to have 2 individual pre-set temperature settings, “SPA” and “Pool”. To adjust
the temperature while in “SPA” or “POOL” mode, use the ( + ) and ( - ) buttons. The numeric display will flash while the temperature is being
adjusted. When the numeric display is not flashing, the actual measured water temperature is being displayed. The temperature settings for
both “SPA” and “POOL” modes are initially set at the factory to 65°F. The minimum allowed settings for “SPA” and “POOL” modes are both 65°
F. The maximum allowed settings for “SPA” and “POOL” modes are adjustable up to 104°F using the TEMPERATURE MAXIMUM SET POINT
feature described below.
TEMPERATURE MAXIMUM SET POINT:
The digital thermostat in this pool heater allows the user to lock the maximum temperature setting
allowed. This feature is useful for preventing unauthorized users from manually adjusting the temperature settings higher than desired. On a
new heater, the maximum allowed temperature lock settings are initially set at the factory to 90°F for “POOL” mode, and 104°F for “SPA”
mode. To adjust these settings, use the following procedure:
1. Use the MODE button to put the heater in “STANDBY” mode.
2. Press and hold both the ( + ) and ( - ) buttons at the same time.
3. After 3 seconds, the thermostat enters maximum temperature lock adjustment mode.
4. The “SPA” indicator light illuminates and the numeric display shows the current “SPA” mode maximum temperature lock setting. Both
the “SPA” indicator light and the numeric display flashes rapidly when in adjustment mode.
5. Use the ( + ) and ( - ) buttons to set the desired maximum temperature lock setting. When finished, press the MODE button.
6. The “POOL” indicator light illuminates and the numeric display shows the current “POOL” mode maximum temperature lock setting.
Both the “POOL” indicator light and the numeric display flashes rapidly when in adjustment mode.
7. Use the ( + ) and ( - ) buttons to set the desired maximum temperature lock. When finished, press the MODE button.
8. The heater will return to “STANDBY” mode
FAILURE TO LIGHT – RETRY:
If the first ignition attempt fails after a call for heat, the control will make two (2) additional ignition attempts:
1. The control de-energizes the gas valve after the 4-second ignition trial ends.
2. The control operates the blower during a 30-second post-purge period.
3. The control monitors for open contacts at the blower vacuum switch.
4. The control performs a gas valve relay check.
5. A normal ignition sequence resumes with Item #2 in NORMAL OPERATION FOR POOL & SPA MODES (see above). If the third
ignition trial fails the control enters a safety lockout (or “hard” lockout) after the post purge period of the third failed trial.
6. The error code “IF” is displayed and the “SERVICE” indicator is illuminated.
a. The control automatically resets and clears the “IF” error code without any user intervention after 60 minutes. If there is a call for
heat after reset, the control will make three (3) trials for ignition. If ignition is not established the control will again enter safety
lockout for 60 minutes. This cycle will continue until ignition is established or the call for heat is removed.
b. The user can reset the control and clear the “IF” error code by pressing the “MODE” button to move through “STANDBY” and
return to the previous mode (“POOL” or ”SPA”).
LOSS OF FLAME – RECYCLE:
If flame is established and then lost, the control will make ten (10) attempts at ignition. If flame is lost within
ten (10) seconds of ignition, the control will respond within 2 seconds. If flame is lost more than ten (10) seconds after ignition the control will
respond within 0.8 seconds.
1. The control de-energizes the gas valve and the blower.
2. The control monitors for open contacts at the blower vacuum switch.
3. The control performs a gas valve relay check.
4. A normal ignition sequence resumes with Item #2 in NORMAL OPERATION FOR POOL & SPA MODES (see above).
5. If the tenth ignition trial fails the control enters a safety lockout (or “hard” lockout) after the post- purge period of the tenth failed trial.
6. The error code “IF” is displayed and the “SERVICE” indicator is illuminated.
a. The control automatically resets after 60 minutes. If there is a call for heat after reset the control will make three (3) trials for
ignition. If ignition is not established the control will again enter safety lockout for 60 minutes. If flame is established but is lost the
control will make ten (10) attempts at ignition. This cycle will continue until ignition is established or the call for heat is removed.
b. The user can reset the control and clear the “IF” error code by pressing the “MODE” button to move through “STANDBY” and
return to the previous mode (“POOL” or ”SPA”).
AUTOMATIC RESET TIME:
The heater will automatically reset when an error condition is corrected and resume operation as detailed in
NORMAL OPERATION FOR POOL & SPA MODES. The heater can be manually reset using the keypad by cycling the mode button through
“STANDBY” and back to the original operating mode (“SPA” or “POOL”).