25
TROUBLESHOOTING
Diagnostic Displays
Sequential pushes of the small “diagnostic” button next to the LCD display will cause the
BLSC to display the following information:(Page 18 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
1. “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.
2. "Generating" LED flashing
The temperature of the pool water is too high or low to operate. You can override this by
Pressing button SUPER CHLORINATE. The BLSC will run at maximum output for the
remainder of the current pump cycle or 24 hours, whichever comes first.
3. "No Flow" LED illuminated or flashing
The BLSC 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 BLSC will turn on within 1 minute.
4. "Check Salt" LED illuminated or flashing
Check salt level in pool/spa. If salt level is low, add salt according to chart on page 8.
Before adding large quantities of salt, it is advisable to have your salt level professionally
checked.
5. "High Salt" LED illuminated
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