8
Troubleshooting
Problem Possible cause Solution
Pump doesn’t
work
Power cord is disconnected from outlet. Check that power cord is installed securely
Earth leakage breaker has been activated
(GFCI Outlet) (Residential side)
Reset the GFCI outlet
Internal pump protective switch has activat-
ed.
Check the condition of the pump and
Internal pump components may have bro-
ken
Contact the installer for assistance, or follow
maintenance procedure as instructed
Internal pump power connections may have
been disconnected or damage
With the power disconnected and de-energized
check continuity of wirnig with a meter
Low airflow Filter element has become clogged. Check the filter element and clean / replace it.
Internal pump components may have bro-
ken
Contact the installer for assistance, or follow
maintenance procedure as instructed
Diuser has become clogged. Check pressure and clean the diuser.
Stop valve is closed. Adjust the stop valve.
Piping has come o or damaged. Check the piping and replace it, if needed.
Noisy,
Vibrate
violently
Some object is in contact with the pump. Remove the object in contact with the pump.
Filter cover is not properly fixed. Fix filter cover properly.
Filter element and filter gasket
are not properly fixed.
Fix filter element and filter gasket properly.
Internal pump components may have bro-
ken
Contact the installer for assistance, or follow
maintenance procedure as instructed
Pump is not placed horizontally on a
concrete base.
Place the pump horizontally.
Only small gap between the pump and the
wall.
Leave the pump at least 30cm away from the wall.
Pump is tilted / installed at an angle Place the pump horizontally.
Piping has come o or damaged. Check the piping and replace it, if needed.
Pump is operated out of the pressure range Check pressure and adjust it.
Use the pump within the pressure range.
Smell of waste-
water
(if used with
wastewater
treatment
system)
There may be low airflow into the treatment
system suitable for the sewage tank.
Follow low airflow troubleshooting instructions
The pump may not be working Follow the pump is not working troubleshooting
instructions
Others Contact the wastewater system installer for
assistance
• Make sure the main power cord is disconnected before performing maintenance.
• Ensure the filter element is properly placed.
• If the filter cover damaged, do not operate the pump and ask trained service personnel or
distributor.
Recommended Filter Maintenance Schedule
AP Series LP Series LW Series YP Series
Filter Cleaning/
Replacement
The air filter element should be cleaned every three months
and replaced every twelve months.
Customer
integrated