I suspect my salt chlorinator (Aqua Rite T-15) has failed.  Display panel LEDs indicate 'power', 'generating', and 'super chlorinate' when selected.  No other green LEDs are illuminated.  Red 'No flow' LED lights up when flow switch is disconnected.  Cycling through display screens shows:

Salt Display: '0000'

Temperature Display: '00'

Cell Voltage: '00.0'

Cell Amperage: '0.0'

Instant Salinity: '-0000'