Graf one2clean - Unusual Water Levels - Fixing a Fault

. FAULT MESSAGES AND TROUBLESHOOTING
Graf UK Ltd
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FAULT MESSAGES AND TROUBLESHOOTING
6
Observation Possible cause Remedy
The water level in
the activation tank
is unusually high
• 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 external
water source and not allowing water to
drain from the system
• Control system is defective
• End holiday mode
• Have the control system settings checked by the
maintenance technician
• Allow tank to be pumped out and clean siphons
• Seal hose connections
• Wait out flooding
• Get in touch with maintenance company
The system smells,
the treated water
is cloudy or
discoloured
• Too little air is entering the system
• Single-sided ventilation due to defective
air admittance valves
• Have service company increase ventilation time
• Check the ventilation, get in touch with
maintenance company
Ventilation is
onesided or large
air bubbles appear
at points
• Membrane unit is defective
• Seal leaky air admittance valves
• Get in touch with maintenance company
• Get in touch with maintenance company
6.3 Unusual Water Levels - Fixing a Fault