TROUBLESHOOTING
Symptom
Motor does not run
Motor runs but
does not pump
4
EN
Possible Cause(s)
1. Fuse blown
2. Switch defective
3. Switch or electrical
connections are faulty
4. Circuit breaker tripped
5. Motor damaged
1. Motor running backwards
due to incorrect polarity
2. Poor connections
or low voltage
3. Fuel level low
4. Strainer clogged or
defective
5. System air leak
6. Suction pipe clogged,
damaged or missing
7. Gear coverplate or O-ring
damaged
8. Bypass poppet
O-ring worn or missing
9. Bypass poppet binding
or damaged
Corrective Action
1. Inspect fuse in fuse holder on
power cord. If blown, replace
2. Remove switch coverplate
and inspect switch. Replace,
if necessary
3. Inspect for damaged fuse,
defective wiring or switch or
improper electrical connections.
Replace as needed and
reinstall
4. Turn power off at source.
Inspect the pump thoroughly;
clean or repair. Reset circuit
breaker by turning the power
switch off then back on
5. Replace pump
1. Connect red wire to positive
(+) ungrounded side of
battery. Motorshaft should turn
clockwise
2. Make sure electrical
connections are secure. Check
battery voltage
3. Fill tank
4. Remove pump coverplate.
Remove and clean strainer.
Install again
5. Tighten all pump fittings and
connections. Inspect suction
pipe for leaks or damage
6. Remove pump from tank.
Inspect suction pipe. Clean
or replace, as necessary
7. Remove and inspect the
coverplate and O-ring.
Replace, as necessary. (see
Maintenance/Repair section)
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