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TROUBLESHOOTING ( CONTINUED )
SYMPTOM
C. Low flow rate
D. Poor motor
performance
EN
POSSIBLE CAUSE ( S )
1. Strainer partially clogged 1. Inspect strainer (see
2. Poor connections or low
voltage
3. Fuel tank low/empty
4. Suction pipe clogged or
damaged
5. System air leak
6. Strainer clogged or
defective
7. Vanes worn or sticking
8. Bypass poppet O-ring
worn or missing
9. Bypass poppet binding or
damaged
10. Outlet is blocked
11. Hose damaged
12. Poor Motor performance
1. Duty cycle elapsed /
overheated
2. Wiring defective
3. Grinding or squeaking
noise
4. Motor damaged
CORRECTIVE ACTION
Maintenance/Repair section).
Replace, if necessary.
2. Make sure electrical
connections are secure.
Check line voltage. This
pump's operating voltages
are 103.5-126.5VAC for 115V
wiring and 207-253VAC for
230V wiring.
3. Fill tank.
4. Remove pump from tank.
Inspect suction pipe. Clean
or replace, as necessary.
5. Tighten all pump fittings and
connections. Inspect suction
pipe for leaks or damage.
Replace, as necessary.
6. Inspect strainer (see
Maintenance/Repair section).
Replace, if necessary.
7. Check slots and vanes for
excessive damage. Replace
if damaged.
8. Inspect O-ring (see
Maintenance/Repair section).
Replace, if necessary.
9. Remove the bypass poppet,
spring, and O-ring. Clean
cavity. Inspect and replace
components, if needed.
10. Check all accessories for
blockage. Remove any
obstructions.
11. Replace hose.
12. See symptom D.
1. See symptom F.
2. Use Wiring instructions in the
Installation Section to ensure
proper connections.
3. Replace pump.
4. Replace Pump.
5
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