Possible Reasons
Remedies
Vent hole blocked. AAV installed on vent connection.
Clean the vent.
Remove the AAV, replace with 2-way carbon block filter
or vent to atmosphere.
Impeller or pump cover plate is faulty or discharge line
blocked
Check impeller/pump cover plate/Discharge line
Partially blocked drainage prior to pump
Check drain lines and clear blockages
The length or height of the pump line installation is over
the specification, or too many bends/elbows
Check installation against manufacturer’s installation
guides.
Symptom
Bad or very slow evacuation
Sanicubic 2 Troubleshooting Guide
