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Please note: If the system happens to run out of acid to
feed, the pH feeder will continue to run and the sanitizer
feeder will not be activated.
3. Cancel High pH Alert for Acid Mode and Low pH Alert
for Base Mode—pH Switch #9
The controller has a pH operating range of 7.0 to 8.2. If the
pH reading falls outside of this range for more than 10 min-
utes, the pH alert light comes on and the unit will not feed.
If you are feeding acid and your system has a pH that fre-
quently jumps above 8.2, you can cancel the high pH alert
by moving the pH switch #9 to the ‘off ’ position. Thus, the
alert light will not come on and the unit will continue to feed.
Please note: If the sensor fails, the pH could continue to
feed, adding an excessive amount of acid to the pool. For
this reason, we strongly recommend leaving the pH
switch #9 in the ‘on’ position and use the maximum feed
time feature described below.
If you are feeding base, you can cancel the low pH alert by
moving the pH switch #9 to the ‘off’ position.
4. Cancel Low ORP Shutoff—ORP Switch #9
The controller is programmed to shut down when the ORP
level drops below 100 mV for more than 10 minutes. This
prevents overfeeding if there is an ORP sensor failure. If you
would like to cancel this feature, move the ORP switch #9 to
the ‘off ’ position.
This change might be required for spas or extremely small
bodies of water where sudden organic loads dissipate the
sanitizer in a very short time.
5. Setting a Maximum Feed Time
As an added safety feature, some operators set maximum
allowable feed times for their sanitizer and pH. These times
represent the maximum time either system would be expect-
ed to run under normal operation. If the feed times reach
these predetermined maximum time limits (due to some mal-
function), the system shuts down and the controller goes into
the service mode (the entire display flashes). To reset, rem-
edy the malfunction, then turn the controller off and then on.
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