Wayne T50SW Operating Instructions And Parts Manual page 7

INSTALLATION MANUAL
TROUBLESHOOTING CHART (CONT'D)
Symptoms Possible Cause(s)
Pump will not 1. Water level too low
start or run
2. Blown fuse or tripped circuit breaker
3. Low supply voltage
4. Motor
5. Switch
6. Inlet clogged
7. Switch obstruction
Pump starts and 1. Back-flow of water from discharge
stops too often pipe
2. Switch
3. Check valve not functioning properly
or leaking
Pump shuts off 1. Switch
and turns on
2. Switch obstruction
independently
3. Obstruction in discharge pipe
of switch (trips
thermal overload
4. Low supply voltage
protection)
Pump operates 1. Worn bearings
noisily or vibrates
2. Impeller broken
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 supply voltage
but delivers little
2. Inlet clogged
or no water
3. Broken impeller
4. Pump not properly sized for
application
5. Check valve stuck closed or
installed backwards
6. Shut off valve closed
7
Suggested Remedies
1. Water must be at the appropriate level to activate switch
2. If blown, determine cause and then either replace with proper
sized fuse or reset breaker
3. Contact an electrician
4. Replace pump
5. Replace switch
6. Remove debris
7. Remove obstruction to verify free motion of switch
1. Install check valve
2. Replace switch
3. Remove and examine check valve for prop er in stal la tion and free
operation. Replace check valve if necessary.
1. Replace tether switch
2. Remove obstruction to verify free motion of switch
3. Remove obstruction in discharge piping
4. Contact an electrician.
1. Replace pump
2. Replace pump
3. Install rubber coupling (available at local hardware stores) to isolate
pump vibration from discharge plumbing
1. Replace switch
2. Remove obstruction to verify 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. Replace pump
4. Recheck all sizing calculations to determine proper pump size
5. Remove and examine check valve for proper installation and free
operation
6. Open valve