6.3
Unusual Water Levels - Fixing a Fault
Observation
The water level in the
activation tank is
unusually high
The system smells,
the treated water is
cloudy or discoloured
Ventilation is one-
sided or large air
bubbles appear at
points
6. Fault Messages and Troubleshooting
Possible cause
System is running in holiday mode
System runs continually in cycle
pause
Control system settings are incorrect
The drain siphon is clogged
The air hose to the drain siphon is
leaking
System has been flooded from exter-
nal water source and not allowing wa-
ter to drain from the system
Control system is defective
Too little air is entering the system
Single-sided ventilation due to defec-
tive air admittance valves
Membrane unit is defective
Seal leaky air admittance valves
Remedy
End holiday mode
Have the control system settings
Allow tank to be pumped out and
Seal hose connections
Wait out flooding
Get in touch with maintenance
Have service company increase
Check the ventilation, get in
Get in touch with maintenance
Get in touch with maintenance
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checked by the maintenance
technician
clean siphons
company
ventilation time
touch with maintenance compa-
ny
company
company