Wayne SEL50 ユーザーズマニュアル

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Operating Instructions and Parts Manual
www.waynepumps.com
Maintenance (Continued)
5.  Submerge the complete pump in a 
disinfectant so lu tion (10% chlorine 
bleach solution) for at least one hour 
before handling the pump.
6.  Clean all dirt and deposits from the 
pump float. Make sure float moves 
freely after cleaning.
7.  Clean all dirt and deposits away 
from pump inlet and volute.
 
This pump contains  
  dielectric motor 
oil for lubrication and motor heat 
transfer. This oil can be harmful to the 
environment. Check state environmental 
laws before disposing of this oil. This 
oil can be harmful to aquatic life so 
consideration should be exercised in the 
application of this pump.
troubleshooting Chart
Symptôm
Possible Cause(s)
Corrective Action
Pump will not start 
or run
1. Water level too low
2. Blown fuse or tripped circuit breaker
3. Low line voltage 
4. Defective motor
5. Defective float switch
6. Impeller (pump filled with debris)
7. Tangled switch
8. Insufficient liquid level
1. Pump switch will not turn on unless water covers top of pump
2. If blown, replace with proper sized fuse or reset breaker
3. If voltage is under recommended min i mum, check wiring size from the 
main switch on property. If OK, contact power company.
4. Return for service or replace motor
5. Replace float switch
6. If impeller will not turn, remove housing and remove debris
7. Arrange switch so the switch moves free ly. Re po si tion pump if 
necessary
8. Make sure liquid level is at least 13 inches from the basin floor
Pump starts and 
stops too often
1. Backflow of water from piping
2. Faulty float switch
3. Check valve not installed or leaking 
4. Discharge head is less than 
manufacturer's minimum
1. Install check valve
2. Replace float switch
3. Remove and examine check valve for prop er in stal la tion and free 
operation
4. Recheck all sizing calculations to determine proper pump size
Pump shuts off 
and turns on 
independently 
of switch (trips 
thermal overload 
protection)
1. Excessive water temperature
2. Defective switch or entangled switch is 
causing pump to run dry 
3. Low line voltage
1. Pump should not be used for water above 120º F
2. Replace or reposition pump
 
Pump may start unexpectedly. Disconnect  
  power supply before ser vic ing.
3. If voltage is under recommended min i mum, check wiring size from the 
main switch on property. If OK, contact power company
Pump operates 
noisily or vibrates 
excessively
1. Worn bearings
2. Debris in impeller cavity or broken
3. Piping attachments to building 
structure too rigid or too loose
1. Return for service or replace
2. Remove housing, clean impeller and/or replace broken impeller
3. Replace portion of discharge pipe with flexible connector
Pump will not shut 
off
1. Defective float switch
2. Float switch movement restricted 
3. Restricted discharge (obstruction in 
piping)
4. Excessive inflow or pump not properly 
sized for application
1. Replace float switch
2. Reposition pump or clean basin as required to provide adequate 
clearance for float
3. Remove pump and clean pump & piping 
4. Recheck all sizing calculation to determine proper pump size
Pump operates but 
delivers little or no 
water
1. Low line voltage 
2. Debris caught in impeller or discharge
3. Worn or defective pump parts or 
plugged impeller
4. Pump running backwards
5. Pump not properly sized for application
6. Check valve stuck closed or installed 
backwards
7. Shut off valve closed
1. If voltage is under rec om mend ed minimum, check wiring size from the 
main switch on prop er ty. If OK, contact power company
2. Remove, clean and check for tight ness
3. Replace worn parts or entire pump. Clean parts if required 
4. Check rotation. (CCW from bottom) Return if CW
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