If the LCD Display on your Compupool CPSC Series Salt Chlorine Generator (SCG) is blank or fading while under power, it may be time to replace the display and its associated Printed Circuit Board (PCB). See our guide on "How To Isolate and Correct Compupool CPSC Problems" for further information. If you determine that the LCD PCB has to be replaced, use this guide to see how to change the PCB.
TURN OFF POWER - Turn off all power to the Compupool Salt Chlorine Generator and pump. If possible, turn the power off at the circuit breaker. Make sure power is OFF and cannot be accidentally turned on while you are changing the cell cord. This is 240V. If you are unfamiliar with electricity, have an electrician help you with the electrical changes.
INSTALL NEW PCB - Insert the replacement LCD Circuit Board under the front two plastic bottom tabs and gently snap the top edge in place under the back top plastic tabs. Make sure the PCB is placed correctly between the 4 plastic posts at the corners. You should not have to press to hard to snap the PCB under the top two tabs. If you push too hard, you might crack the PCB.