
20 CULLIGAN
®
MARK 100 WATER SOFTENER
The service check mode allows one to view the instantaneous flow rate, the days since the last regeneration,
the total number of regenerations, the regenerations in the past fourteen days, and the gallons remaining.
To enter the service check mode, follow these steps:
Service Check
1. Press the status key to move past steps 1-10 until
the display is blank.
2. Push the down arrow. The number '12' will
appear only when the Soft-Minder
®
meter is
connected. The display reads the gallons per
minute flow rate. This screen will update with
the current meter reading every 6 seconds.
3. Press the down arrow. The number '13' and an
"A" will light at the bottom of the display. The
display will indicate the number of regenerations
that have occurred in the last 14 days.
5. Press the down arrow. The number '14' will light
at the bottom of the display. The number in the
display indicates the number of days since last
regeneration.
6. Press the down arrow. The number '15' will be
displayed if the flow meter or Aqua-Sensor
®
is
connected. For the controls with the Soft-
Minder
®
meter, the display indicates the gallons
remaining before the unit signals for regeneration
(multiply the displayed number by 10). For
Aqua-Sensor
®
controls, the number indicates the
total minutes of the last brine rinse cycle.
4. Press the down arrow. The number '13' and a 'B'
will light at the bottom of the display. The
display will indicate the total number of regen-
erations this control has cycled through.
NOTICE: Pushing the up arrow at any of these displays will immediately bring you to the control position
display, the number '11' will light at the bottom of the display.
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