21
9. TROUBLESHOOTING
Diagnostic Displays
Sequential pushes of the small “diagnostic” button next to the LCD display will cause
the Chlorinator to display the following information:(Page 16 control button)
On the 8th push of the button the display will revert back to the default salt display. Also
if the button is not pushed for 30 seconds, the display will revert back default salt.
Common Problems and Solutions
Problem
Possible Cause
Corrective Action
“Power” LED
not on
Check to make sure 120 / 240 VAC input
power is connected to the control. Be
sure the jumpers are set properly. Verify
input voltage with a voltmeter. If there is
input power, the fuse may have blown.
The board is protected by a 20 amp mini
ATO fuse located on the circuit board
above the cell connector.
«
Generating»
LED flashing
The temperature
of the pool water is
too high or low to
operate.
You can override this by switching the
main switch to SUPER CHLORINATE.
The STH will run at maximum output for
the remainder of the current pump cycle
or 24 hours, whichever comes first.
«No Flow»
LED
illuminated or
flashing
The STH has sensed
a no flow condition
and has stopped
generating chlorine.
Check that the flow switch is plugged
into the connector on the bottom of the
control unit and that the wire is not cut
or damaged. Make sure you have at
least 12» of straight pipe before the flow
switch. If there is adequate flow and the
LED is still on, check that the arrows
on the flow switch (on top of hex) are
pointing in the direction of flow. If the light
is flashing, the flow is established and the
STH will turn on within 1 minute.
«Check
Salt» LED
illuminated or
flashing
Check salt level in pool/spa. If salt level is
low, add salt according to chart on page
11. Before adding large quantities of
salt, it is advisable to have your salt level
professionally checke
