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MAINTENANCE AND TROUBLESHOOTING
(CONTINUED)
PRIMING HOLE
WHEN REATTACHING THE BASE (INLET SCREEN), BE SURE THAT THE
FOUR (4) "PLUGGED" SCREENS ARE ORIENTED BELOW THE SWITCH.
Figure 2 - Priming Hole Location
7. If pump runs continuously, unplug the unit. Once unplugged,
check for debris stuck inside the sensor body (Figure 3).
Remove any trapped leaves, debris or dirt.
8. If the pump cycles on and off too often the electronic switch may
need cleaning. Unplug the pump and turn upside down. The
sensor probe will be visible inside the switch housing. Clean inside
the housing gently scrubbing with a small brush using soapy water.
Troubleshooting
Chart
Symptom
Possible Cause(s)
Pump will not
1. Tripped home electrical breaker
start or run
2. GFCI tripped
3. Low line voltage
4. Defective motor
5. Dirty switch
6. Impeller obstructed
7. Inlet screen clogged
8. Priming hole plugged
Pump starts and
1. Backflow of water from piping
stops too often
2. Dirty switch
3. Priming hole plugged
Pump will not
1. Debris in switch
shut off or runs
2. Discharge height exceeds capability
continuously
Pump operates
1. Impeller obstructed
but delivers little
or no water
2. Priming hole plugged
3. Obstructed piping
4. Discharge height exceeds capability
All manuals and user guides at all-guides.com
IMPELLER PLATE
BASE SCREWS (4)
INLET SCREEN/
BASE
PUMPING HEIGHT
When water is pumped to an elevated position, any volume that has
not reached the discharge outlet can flow back through the pump
when the pump shuts off. This back-flow can cause the water level
in small areas to rise enough to re-start the pump. A check valve
[Check Valve Sold Separately] is required in this situation. For proper
operation, make certain the check valve is oriented as instructed.
cycle continuously and potentially wear out the pump components.
Figure 3 - Remove Debris From Sensor
Electrocution Hazard! Pump starts automatically. Disconnect the power before
attempting any repairs. Failure to follow will result in serious injury or death.
Corrective Action
1. Reset breaker
2. Check for damaged wiring or moisture
3. If voltage is under 108 volts, check wiring size
4. Replace pump
5. Rinse out switch with clean water (Figure 3 on page 3)
6. Remove base and impeller plate (Figure 2 on page 3) check for
debris; clean
7. Clean inlet screen (Figure 2 on page 3)
8. Clean hole, inside volute housing, with a pin or paper clip (Figure
2 on page 3)
1. Install or replace check valve [Sold Separately: CAT No. 40138]
2. Rinse out switch with clean water (Figure 3 on page 3)
3. Clean hole, inside volute housing, with a pin or paper clip
(Figure 2 on page 3)
1. Rinse out switch with clean water (Figure 3 on page 3)
2. Raise pump or reduce discharge height
1. Remove base and impeller plate (Figure 2 on page 3), check for
debris; clean
2. Clean hole, inside volute housing, with a pin or paper clip
(Figure 2 on page 3)
3. Check for kinks, reposition hose or check for debris
4. Reposition pump to reduce discharge height
3
Do not use pump if any part of the switch
housing or probe is cracked, broken or missing.
In small areas a check valve is required to prevent
backfl ow. Without a check valve the pump may
INSIDE SENSOR
www.waynepumps.com
EEAUP250
CLEAN DEBRIS
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