Wayne WSS30Vn Operating Instructions And Parts Manual page 9

Operating Instructions and Parts Manual
AC TROUBLESHOOTING CHART
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 screen 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. 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 supply voltage
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 screen clogged
or no water
3. Pump not properly sized for
application
4. Check valve stuck closed or
installed backwards
5. Shut off valve closed
Pump trips GFCI
1. Bad GFCI
2. Bad pump
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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 unit if switch is broken
6. Remove debris
7. Remove obstruction to ensure free motion of switch
1. Install check valve
2. Replace unit if switch is broken
3. Remove and examine check valve for prop er in stal la tion and free
operation. Replace check valve if necessary.
1. Pump should not be used for hot water
2. Replace pump
3. Remove obstruction to ensure free motion of switch
4. Remove obstruction in discharge piping
5. 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 unit if switch is broken
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. Recheck all sizing calculations to determine proper pump size
4. Remove and examine check valve for proper installation and free
operation
5. Open valve
1. Contact and electrician to replace GFCI
2. Replace pump
WSS30Vn
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