The FL1 or FLOW alert is stopping the salt chlorinator from operating. What does this mean?

• The AL3 alert is displayed and the chlorinator has stopped working. What should I do?
• The salt concentration in my pool is showing as non-compliant, the salt chlorinator indicates a malfunction. What should I do?
• The salt concentration of my pool is displayed as 0 g/l. The voltage and current are also displayed as 0 but there is no malfunction. What does this mean?
• What does the message "LOW" mean on the salt chlorinator home screen?