Glentronics Pro Series Operating Instructions Manual page 6

Pro Series Operating Instructions
Pro Series Chemical
Resistant Pumps
Troubleshooting Chart (Continued)
Symptom
Insufficient or no water
volume
bnormal sound or vibration
Possible Cause(s)
1. Check valve on secondary pump will
not close and water re-circulates
within the system
2. Worn impeller
3. Partially blocked impeller
4. Clogged or frozen discharge
5. Broken or leaking pipe
6. Low power voltage
7. Check valve installed with no air
bleed hole in pipe or pump
8. Check valve is stuck or installed
upside down
1. Check valve on secondary pump will
not close and water re-circulates
within the system
2. Blocked inlet screen
3. Broken impeller
6
C8050 and C8100
Corrective ction
1. Replace the check valve on the
secondary pump
2. Replace impeller & adjust spacing
between impeller and cover
3. Remove strainer and clear obstruction
4. Clear blockage or thaw frozen line
5. Repair piping
6. Check power voltage, wires and cable
condition
7. Drill a bleed hole in the discharge
pipe, or clean debris from the existing
hole in the pipe or pump
8. Reverse or replace the check valve. Be
sure check valve is installed with flow
arrow pointing up and out of the pit
1. Replace the check valve on the
secondary pump
2. Clear debris from inlet screen
3. Replace impeller with new one