MiniWarden/PoolWarden + (PLUS) Operation Manual • www.poolwardentraining.com • 27
Enclosure
The enclosure can be cleaned with a moist soft cloth. Take extra care when cleaning the clear display
window. To clean the display window make sure the cloth hasn’t been used to clean anything else or it may
have grit which may scratch the clear screen.
Plug any unused cable grips on the bottom side of the enclosure. If a cable grip is left open bugs may enter
the inside and leave droppings and nests which should be removed.
Sensor Maintenance
The sensors must be clean to operate properly. The strainer in front of the flow cell will catch most debris
but oils and chemical deposits will get through. Slow response, increased need to calibrate and inconsistent
readings are indicators that the sensors need to be cleaned or replaced.
To clean the sensors, turn off both valves to the flow cell and carefully remove the pH and ORP sensors
from the flow cell. The small white dots on the bottom of the sensor should be flush with the black sensor
body and clearly visible. Use a soft brush and a mild detergent to remove any oil and contamination from
the glass bulb and the small white dots. Do not let the sensors dry out as that may damage the sensor, after
cleaning apply Teflon tape to the threads and reinstall the sensors.
ORP & pH Sensor Replacement
The ORP and pH sensors have a warranty to last at least 1 year and will most likely last from 1.5 to 3 years
or longer. An indication that it is time to replace a sensor is the percentage listed on the calibration screen
in the service menu. If the percentage is 99% then the sensor is not able to be properly calibrated and
should be replaced. There is a date code on the sensor body that can also aid in determining if the sensor
needs to be replaced. If one sensor needs to be replaced and both the ORP and pH sensor have the same
date code it is recommended to replace them both.
Part Number Type Description
ORP-COMP Sensor ORP Sensor, platinum band, red sensor body
ORP-COMG Sensor ORP Sensor, gold disk for salt water chlorinators
PH-COM1 Sensor PH Sensor, blue sensor body
Sensor Storage
To store the sensors turn off both valves to the flow cell and remove the sensors. Add a little water to the
sensor cap and hand tighten the sensor to the cap. The cap should have a small sponge that only needs
to be moistened.
Cold Temperatures
The ORP and pH sensors should not be exposed to freezing conditions. If the outside temperature is
below freezing this may damage the sensors and they should be removed to protect them. Always store
them with their protective caps.
Always drain the water from the flow cell, strainer and tubing to to flow cell to prevent damage in freezing
conditions.
Technical Support
Please contact ControlOMatic at 530-205-4520 for sales and support. Send support emails to
support@controlomatic.com. The dedicated controller website with videos, tips, documents and more is:
Appendix C: Maintenance
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