Wayne SPF33 Manuel D'installation page 7

TROUBLESHOOTING
Symptoms Possible Cause(s)
Pump shuts off
1. Excessive water temperature
and turns on
2. Switch
independently
3. Switch obstruction
of switch (trips
thermal overload
4. Obstruction in discharge pipe
protection)
5. Low line voltage
1. Worn bearings
Pump operates
noisily or
2. Impeller obstructed or broken
vibrates
excessively
3. Piping attachments to building
structure too rigid or too loose
Pump will not
1. Switch
shut off
2. Switch obstructions
3. Restricted discharge (obstruction in
piping)
4. Excessive inflow or pump not
properly sized for application
Pump operates
1. Low line voltage
but delivers little
or no water
2. Inlet screen clogged
3. Broken impeller or debris in
impeller cavity
5. Pump not properly sized for
application
6. Check valve stuck closed or
installed backwards
7. Shut off valve closed
(CONTINUED)
Printed on 100% Recycled Paper
Suggested Remedies
1. Pump should not be used for water above 120º F
2. Replace switch
3. Remove obstruction to ensure free motion of switch
4. Remove obstruction in discharge piping
5. Contact an electrician.
1. Replace pump
2. Where applicable, remove screen and volute, clean impeller
and/or replace impeller
3. Install rubber coupling (available at local hardware stores) to
isolate pump vibration from discharge plumbing
1. Replace switch
2. Remove obstruction to ensure free motion of switch
3. Remove obstruction from discharge piping
4. Recheck all sizing calculations to determine proper pump size
1. Contact an electrician
2. Remove debris
3. Remove screen and volute, clean impeller and/or replace
impeller
5. Recheck all sizing calculations to determine proper pump size
6. Remove and examine check valve for proper installation and
free operation
7. Open valve
INSTALLATION MANUAL
7