Operating Instructions and Parts Manual
9
www.waynepumps.com
WPCP250
TROUBLESHOOTING CHART
Symptom
Possible Cause(s)
Corrective Action
Pump will not start
or run
1. Tripped home electrical breaker
2. GFCI tripped
3. Low supply voltage
4. Defective motor
5. Stuck float
6. Impeller obstructed
7. Inlet clogged
8. Pump is sitting uneven
1. Reset breaker
2. Check for damaged wiring or moisture
3. Contact electrician
4. Replace pump
5. Clean float switch (See Troubleshooting, Figure 2)
6. Remove inlet cover and inlet plate (See Troubleshooting, Figure 1) and check
for debris; clean
7. Follow periodic cleaning steps (See Maintenance, Figure 1)
8. Reposition pump so pump is upright and level
Pump starts and
stops too often
1. Backflow of water from piping
2. Pump is sitting uneven
1. Install check valve
2. Reposition pump so pump is upright and level
Pump will not
shut off or runs
continuously
1. Stuck float
2. Discharge height exceeds capability
3. Pump is sitting uneven
1. Clean float switch (See Troubleshooting, Figure 2)
2. Reduce discharge height
3. Reposition pump so pump is upright and level
Pump operates
but delivers little or
no water
1. Impeller obstructed
2. Obstructed hose
3. Discharge height exceeds capability
4. Inlet clogged
1. Remove inlet cover and inlet plate (See Troubleshooting, Figure 1) and check
for debris; clean
2. Check for kinks, reposition hose or check for debris
3. Reduce discharge height
4. Follow periodic cleaning steps (See Maintenance, Figure 1)
TROUBLESHOOTING (CONT’D)
5. When temperatures drop below freezing, remove pump from
service and store indoors to protect pump from damage due to ice.
The pump has a unique protection circuit to protect the motor from a
locked impeller condition possibly caused by debris buildup or from
a “frozen” impeller situation caused by ice formation. When the pump
is activated and a locked impeller condition is detected the unit will
automatically shutdown to protect the motor from overheating. The
pump will continue this on/off cycle for a period of time to attempt to
“free” the impeller until eventually the unit will remain off for a period of
12 hours checking twice a day for a “freed” impeller. Once the pump
is able to operate correctly the pump will resume normal operation.
To reset this delay without waiting 12 hours momentarily unplug the
pump.
Do NOT use pump is any part of the switch
housing or probe is cracked, broken or missing.
NE PAS utiliser la pompe si une partie du boîtier
de l’interrupteur our de la sonde est fissuré, cassé ou manquant.
