Liberty Pumps Ascent II Series, Installation Manual

Page: 15 / 52

5755000H Copyright © Liberty Pumps, Inc. 2018 All rights reserved. – 15 –
No electrical power
The macerator does not start up.
• Green LED is off.
The macerator is either not plugged in,
supply breaker is turned off, or GFCI
receptacle has tripped.
Check electrical power source.
Solid debris in basket
During a pumping cycle, a rattling
noise is emanating from the
macerator.
Solid object larger than ½” is trapped in the
cutting basket of the macerator.
The access cover should be removed for manual
cleaning. See Access Cover on page 10.
Pump is unable to evacuate tank
Alarm sounds frequently (pump
unable to evacuate tank).
Damaged impeller. Replace impeller. See Impeller Access on page 12.
Volute inlet clogged. Clean volute inlet. See Accessibility to Motorized
Cartridge on page 11.
Internal hose damaged. Confirm the internal hose is functioning properly;
if not, replace. See Interconnect Hose on page 12.
Air lock. The volute has a passageway to allow trapped air
to escape. This passageway must be cleaned of
obstruction. See Accessibility to Motorized
Cartridge on page 11.
Application. The pumping capacity has been exceeded by the
rate of incoming water. Either reduce flow coming
into the macerator or reduce the pumping head.
General plumbing
The macerator pulses for no
apparent reason.
Water leakage from the toilet reservoir. Check flush valve and related components in the
reservoir tank.
Check valve failure of the macerator. The discharge flange contains a check valve that
requires cleaning or replacement. See Check
Valve on page 10.
General plumbing
Water backs up into shower tray.
• Alarm is not activated.
Blockage or inadequate slope of pipe. Clear blockage in piping, or increase pitch of
discharge pipe. Typically ¼” drop per foot is
adequate for a gravity drain.
The inlet flappers of the macerator are not
functioning.
Clear any buildup in the macerator holding tank
that is preventing the flappers from opening. See
Accessibility to Motorized Cartridge on page 11.
General plumbing
Macerator is noisy when running.
Rattling piping. Both the discharge and vent plumbing should be
secured using appropriate pipe clamping.
Foreign object in cutter basket. The access cover should be removed for manual
cleaning. See Access Cover on page 10.
General plumbing
During the draining of the bathtub,
the alarm sounds and/or water
backs up into the toilet.
The inflow is greater than the macerator
can handle.
A full port ball valve should be installed between
the tub and macerator. Throttle down or partially
close the ball valve until the macerator can handle
the drainage rate from the tub.
Table 2. Troubleshooting Matrix (continued)
Problem Possible Cause Corrective Action