CircuPool SJ20A - Page 22

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Flow LED is red
Insufficient water flow to trigger switch,
or pocket of air touching sensor tab in cell
This may happen temporarily if there is air in the
lines at initial startup. Check water level, pump
cavitation, air or blockages in plumbing, and all
valves & seals. Clean filters & strainers. Ensure
at least 25-30 GPM flow rate.
Incorrect Installation
Verify correct orientation, cable is plugged in, 6-
12" of straight pipe before Flow Switch
Dirty sensor tab
Follow cell cleaning instructions on page 12.
Generate LED is off
This is normal system operation, the
system will automatically resume chlorine
generation
The system has a duty cycle and rest cycle
determined by how high or low you set the
chlorine output. If needed, you can raise
chlorine output.
Low Water Temp LED is red
The system has deactivated due to low
water temperatures
No action is needed. This is a feature that
extends the system’s lifespan, and the unit will
begin working again once seasonal
temperatures rise.
Sensor is disconnected or damaged
Check cable connections, contact support.
Unable to increase chlorine
production
Dirty Cell, cold water, low salt level
Clean Cell, check water temp and salt level.
Physically damaged keypad
Check keypad buttons, ensure tactile response
Water leak
O-Ring improperly seated
Ensure O-Rings are clean and in good condition.
Threaded collars are cross-threaded or
pipes are misaligned
Inspect threads for damage, ensure that each
screws back on without resistance.
The keyed notch on the Cell head
was not fully aligned (or became unaligned)
with the corresponding notch on the Cell
Housing when it was screwed in place.
Unscrew cell, carefully align cell, and use a hand
on the Cell cable to press and hold it in place
while screwing the Cell head’s cap hand-tight.
Crack in plumbing parts
Contact support.
Cell frequently has mineral
buildup
This is due to imbalanced water chemistry
and a high Saturation Index
Ensure that your Saturation Index is at or near
zero, in order to avoid damage or premature
Cell failure. (page 8)
Cell never or rarely has mineral
buildup
Water may be corrosive due to imbalanced
water chemistry and a low Saturation Index
Ensure that your Saturation Index is at or near
zero, in order to avoid damage or premature
Cell failure. (page 8)