If the buzzer alarm turn off, there is only “LOW”, ”MID”, ”HIG” lights flash, no
buzzer alarm.
The reasons of failure will be the following situations:
▪ Long beep
▪ ATO light flashes slowly
▪ PAUSE light flashes quickly
▪ The water pump is broken.
▪ The water level drops too much
artificially, and the two SPT pumping
time still cannot reach the LOW level.
▪ The water pipe is bent and cannot
pump the fish tank with water.
▪ Buzzer alarm rings every 0.5second
▪ The HIG light flashes every 0.5second
▪ LOW light does not turn on
▪ The sensor in the tank is dirty,
blocked by debris of plants, mud or
other stuff.
▪ The water surface or tank wall is
dirty.
▪ Long beep for three seconds, beep
twice
▪ Controller need be restarted or
exchanged
Chapter VII: Alarm Situations
11
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