21
© 2020. All rights reserved.
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
Backup pump
won’t run
Connections are incorrect or loose
Verify connections are correctly
installed
Wire terminal points are dirty
Check all terminals and clean if
required
Battery is low
Service or replace battery
30 Amp controller fuse is blown
Replace with 30 amp automotive
blade fuse
Pump runs but
delivers little or
no water
Connections are incorrect or loose
Verify connections are correctly
installed
Weep hole is plugged and unit is air-
locked
Clean weep hole
Discharge pipe is blocked
Clear discharge pipe
Check valve may not be working
correctly. It should allow water to go out of
discharge pipe but not allow water to flow
back into the sump basin after pump has
shut off.
Replace the check valve if necessary
Float switch in
‘on’ position for
3 seconds or
more but pump
won’t run
Pump is obstructed
Remove pump and clear any debris
from impeller or pump cavity
Pump runs but
pumps water
intermittently
Incoming water is causing pump to air lock Divert incoming water to reduce
turbulence
Water level
stays high but
pump continues
to run
Battery is low
Service or replace battery
If power is restored, check primary pump
Service or replace if required
Alarm sounds
during battery
recharge cycle
Alarm needs to be reset
Press ‘Silence’ button for 3 seconds
Battery is defective. Check voltage with a
multimeter. Disconnect the controller from
the battery and re-check voltage. If voltage
is below 12V after disconnecting, battery
must be replaced.
Check battery and replace if
necessary
RISK OF ELECTRIC SHOCK.
Always disconnect power source before attempting to install, service, or maintain the pump. Never handle a
pump with wet hands or when standing on wet or damp surface or in water. Fatal electrical shock could occur.
DANGER
