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Troubleshooting Chart - RPPCAP50
Symptom Possible Cause(s) Corrective Action
Pump will not start or
run
Pump starts and stops
too often
Pump shuts off and
turns on independently
of switch (trips thermal
overload protection)
Pump operates noisily
or vibrates excessively
Pump will not shut off
Pump operates but
delivers little or no
water
1. Water level too low
2. Blown fuse or tripped circuit
breaker
3. Low line voltage
4. Defective motor
5. Defective “Switch Genius”
6. Impeller (pump filled with
debris)
7. Insufficient liquid level
1. Backflow of water from piping
2. Dirty “Switch Genius” water
sensor
3. Check valve not installed or
leaking
4. Discharge head is less than
manufacturer’s minimum
1. Excessive water temperature
2. Low line voltage
1. Worn bearings
2. Debris in impeller cavity or
broken
3. Piping attachments to building
structure too rigid or too loose
1. Defective “Switch Genius” switch
2. Restricted discharge (obstruction
in piping)
3. Excessive inflow or pump not
properly sized for application
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. “Switch Genius” water sensor will not turn pump on unless
water is within 1 inch of the top of the sensor.
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 “Switch Genius”
6. If impeller will not turn, remove housing and remove
debris
7. Make sure liquid level is at least 11" from the basin floor
1. Install check valve
2. Reposition pump, clean sensor face.
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
1. Pump should not be used for water above 120°
Pump may start unexpectedly.
Disconnect power supply before
ser vic ing
2. If voltage is under recommended min i mum, check wiring
size from the main switch on property. If OK, contact
power company
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
1. Replace “Switch Genius” switch
2. Remove pump and clean pump & piping
3. Recheck all sizing calculation to determine proper pump
size
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
Models RPP50 and RPPCAP50