Service manual

CULLIGAN HOUSEHOLD & COMMERCIAL CIRCUIT BOARDS

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3. Press the status key. If a flow meter is plugged into the circuit board, a

bar on the second digit of the display will be lit. The display will be

blank if a flow meter is not plugged into the circuit board.

4. Press the status key. A “1” will appear on the display for 3 seconds.

5. Press the “+” key. A “2” will appear on the display for 3 seconds and

the motor will run. An “H” in the display means the motor homing

switch is activated. A “P” on the display means the motor program

switch is activated. Press the “+” key again and the motor will stop.

Note: If the “+” key is not pressed again, the motor will stop turning

after 30 seconds.

6. Press the “-” key. A “3” will appear on the display for 3 seconds.

7. Press the “REG” key. A “4” will appear on the display for 3 seconds.

8. A signal from the flow meter will cause the phone icon to flash. If a

flow meter is connected to the circuit board, the bar will be displayed

in steps 3-7.

9. Hold the status key for 3 seconds to return to the time of day. The

motor will automatically energize to the home position.

Note: The control will not “TIME OUT” when in the test mode.

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Failure Mode

There are certain conditions that can be interpreted by the circuit board as a failure of the drive motor or motor

position switch. Upon failure detection the control will cease further operation. A telephone hand set symbol will be

shown in the upper left corner of the display and the error code will be shown. Listed below are the different error

codes.

1. Motor Always Turning Error code "E1" occurs when the circuit board detects changes in the motor

program switch when the motor is not supposed to be turning. The phone icon and "E1" will be lit in the display.

2. Motor Never Turns The Culligan Medallist Series control is equipped to detect no change in the

motor position when the motor is supposed to be turning (motor or piston locked in a frozen position). The

AccuSoft circuit board will apply power to the motor for 20 seconds. If there is no change in the motor homing or

position switch, the control will power down for 1 minute. The circuit board will repeat this procedure two more

times in an attempt to remove the obstruction. If no movement has been detected, the control will permanently

power down and a phone icon and an "E2" will appear in the display.

3. Homing Error Error code "E3" occurs when the circuit board detects when the control is

unexpectedly in the home position. The phone icon and "E3" will be lit in the display.

Error Display Cancellation

The error code display can be removed by removing the power to the control for 1 minute. After clearing an error

condition, the control will default to the factory settings when power is restored.