Troubleshooting - Ashland ANC200 Manual De Instrucciones

Always discount the pump from the electrical power source before handling. If the system fails
WARNING
to operate pproperly, carefully read instructions and perform maintenance recommendations. If
operating problems persist, the following chart may be of assistance in identifying and correcting them.
SYMPTOM
Red light comes on
at control box
Overload trips at control
box and alarm buzzer or
due to high water level in
basin.
Yellow run light stays
on continuously
Circuit breaker trips
with control
Pump is noisy and pump
rate is low
Grease and solids have
accumulated around pump and
will not pump out of basin.
Solids Handling Pumps
Models: ANC200/300/500/750/1000/1500 /2000
& ANCV200/300/500/750/1000/1500 /2000
Trouble Shooting
POSSIBLE CAUSES
1. This indicates some water has leaked
past the lower seal and has entered the
seal chamber and made contact with
the electrode probe.
1. Impeller may be partically
clogged with foreign objects.
2. Component in the control box may
be faulty.
3. Pump has some damaged.
1. H-O-A switch may be in the hand
position
2. Level control switch may have failed
causing pump to continue to operate
when water is below lower control.
3. Impeller may be partically clogged
causing pump to operate at very
reduced capacity.
4. Gate valve or check valve may be
clogged causing low pump flow.
5. Pump may be air clocked.
1. Excessive load probably caused by a
short in the motor or control box.
2. If this condition happens after an
electrical strom, motor or control box
may be damaged by lightning.
1. Impeller may be partially clogged with
some foreign objects causing noise
and overload on the motor.
2. Impeller may be rubbing on wear ring
due to bent shaft or misalignment.
3. Pump may be operating too close to
shut-off
1. Lower control switch may be set too high.
2. Trash and grease may have accumulated
around floats causing pump to operate
erratically
15
CORRECTIVE ACTION
1. Replace the lower seal
1. Check impeller for freedom
of operation, security and condition.
Clean impeller cavity and inlet of
any obstruction.
2. Check control box, if need
repair it.
3. Check pump, if need repair it.
1. Reposition pump or clean basin as
required to provide adequate
clearance for float
2. Disconnect level control. Set
ohmmeter for a low range, such
as 100 ohms full scale and connect
to level control leads. Actuate level
control manually and check to see
that ohmmeter shows zero ohms
for closed switch and full scale for
open switch (Float Switch)
3. Check impeller for freedom of
operation, security, and condition.
Clean impeller cavity and inlet of
any obstruction
4. Remove and examine check
valve for proper Installation and
freedom of operation
5. Loosen union slightly to allow
trapped air to escape. Verify
that turn-off level of switch
is set so that impeller cavity is
always flooded. Clean vent hole.
1. Check out instructions given
box before pulling pump
2. Reset breaker by pushing
completely down on handle
then back to ON position. If
breaker trips again in a few
seconds it indicates.
1. Check impeller for freedom of
operation, security, and condition.
Clean impeller cavity and inlet of
any obstruction.
2. If need replace shaft
3. Check if the pump is operating
too close to shut-off.
1. Check and reset the control switch
2. Run pump on hand operation for
several minutes with small
amount of water running into
basin to clean out solids and
grease.