Tuttnauer 6671130 - Troubleshooting for Water Pump SHURFLO

MAN205-0195042EN Rev. A Aug. 2011
Page 92 of 137 pages
9.5 Troubleshooting for Water Pump SHURFLO
Symptom
Possible cause
Corrections
1. Pump does not
start.
1.1 Fuse burnt or circuit
breaker tripped.
1.2 Wrong voltage.
1.3 Damaged electrical
connection.
1.4 Faulty pressure switch.
1.5 Open or grounded circuit
due to faulty rectifier or
motor.
1.6 Locked drive assembly.
1.1 Replace fuse or turn
on the circuit
breaker.
1.2 Use right voltage.
1.3 Fix connections.
1.4 Replace pump.
1.5 Replace pump.
1.6 Replace pump.
2. Pump does not
prime (motor
runs but water
is not
discharged.
2.1 No water supply.
2.2 Inlet water strainer
clogged.
2.3 Vacuum leak in inlet line.
2.4 Inlet or outlet tube
severely kinked.
2.5 Debris in pump inlet or
outlet valves.
2.6 Pump operating on wrong
voltage.
2.7 Pump housing damaged
(cracks).
2.1 Fix water supply.
2.2 Clean inlet strainer.
2.3 Replace piping.
2.4 Straighten or
replace tube.
2.5 Clean valves.
2.6 Use right voltage.
2.7 Replace pump.
3. Leak from
pump head or
switch.
3.1 Loose screws at switch or
pump head.
3.2 Switch diaphragm
ruptured or pinched
3.1 Fasten screws
3.2 Replace damaged
pump.
4. Pump will not
shut-off
4.1 Output line closed and no
leaks.
4.2 Air trapped in outlet line
or pump head.
4.3 Pump operating on wrong
voltage.
4.4 Inlet or outlet valves
clogged.
4.5 Loose drive assembly or
pump head screw.
4.6 pressure switch
operation/adjustment
incorrect
4.1 Open outlet line.
4.2 Remove trapped air.
4.3 Use right voltage.
4.4 Clean clogged
valves.
4.5 Fasten loose
screws.
4.6 Refer to S/B #1031
for differential and
pressure adjustment
procedure.
5. Pump runs
loudly
5.1 Loose pump head or drive
screws.
5.1 Tighten loose
screws.