Rheem P-M406 Operating Instructions - Page 34

Program Button 1) Remove the four screws holding the control cover, and swing the panel down so the back side of the board is visible (see page 31). Locate the Program Mode button (marked as SW1) as shown on page 33. Press and hold the button (5-7 seconds) until Set Factory Defaults appears on the display. Release the program button. Fahrenheit or Celsius Refer to step one above to access the program screen. Press the Mode button until Fahrenheit or Celsius 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 Fahrenheit or Celsius on the temperature display. Choose the desired temperature scale. 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: 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. Set Factory Defaults Refer to step one above to access the program screen. Set Factory Defaults should appear on the screen. If it does not, press the Mode button until Set Factory Defaults appears on the digital display. Press and hold both UP and DOWN buttons for 5-7 seconds until Defaults Set appears. 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). The Control Lockout PIN will be cleared and the control will resume normal operation. Clear Faults Refer to step one above to access the program screen. Press the Mode button until Clear Faults appears on the digital display. Press and hold both UP and DOWN buttons for 5-7 seconds until Faults Cleared appears. This operation resets the Fault History file to "0" and clears all the stored faults. Spa Max Temp - Spa Set Point Maximum Adjustment Refer to step one above to access the program screen. Press the Mode button until Spa Max Temp 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. Pool Max Temp - Pool Set Point Maximum Adjustment Refer to step one above access into the program screen. Press the Mode button until Pool Max Temp 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. Control Lockout The heater is equipped with a Control Lockout feature to prevent unauthorized tampering or adjustment of the control settings. To lock out the controls, press the DOWN button and Mode button for 5 seconds. Choose a three digit PIN, using the UP and DOWN buttons to select the digits and the Mode button to lock in selections. Confirm your selection and record your PIN. To unlock the controls, press any button to bring up the Enter PIN menu. Enter the PIN that was used to lock the control. Note that power cycling will not clear the lockout. Successfully unlocking the control will display "Lockout Cleared." Failure to enter the correct PIN will display "Invalid PIN." In the event that the user-selected PIN is lost or does not clear the Control Lockout, use the Program Button to Set Factory Defaults. This will clear the PIN and allow normal operation and selection of a new PIN if desired. See the Program Button directions on this page for details. NOTE: Both the POOL and SPA setpoints will revert back to 65°F (18.5°C) and the POOL and SPA maximum temperature settings will be 104°F (40.0°C). These setpoints will need to be readjusted to desired settings. 34