Troubleshooting - Zoeller 1261-0001 Manual

TROUBLESHOOTING

Problem
Pump will not 1. Water level too low.
start or run.
2. Blown fuse or tripped circuit breaker.
3. Low line voltage.
4. Motor is defective.
5. Switch is defective.
6. Inlet screen clogged.
7. Switch is obstructed.
Pump starts and 1. Water is back-flowing into basin from
stops too often.
2. Switch is defective.
3. Check valve not functioning properly
Pump shuts off 1. Excessive water temperature.
and turns on
independently
2. Switch is defective.
of switch (trips
3. Switch is obstructed.
thermal overload
protection.)
4. Discharge pipe is clogged.
5. Low line voltage.
Pump is noisy 1. Worn bearings.
or vibrates
2. Impeller is clogged or damaged.
excessively.
3. Piping attachment to building
Pump will not 1. Switch is defective.
shut off.
2. Switch is obstructed.
3. Discharge pipe is clogged.
4. Water inflow exceeds pump capacity.
Possible Cause
discharge pipe.
or leaking.
structure too rigid or too loose.
.
1. Water must be at the appropriate level
to activate switch.
2. If blown, determine cause and then
either replace with properly sized fuse,
or reset breaker.
3. Contact an electrician.
4. Replace pump.
5. Replace switch.
6. Remove debris.
7. Remove obstruction to ensure free
motion of switch.
1. Install check valve.
2. Replace switch.
3. Be sure check valve is installed and
operating properly. Replace check
valve if necessary .
1. Pump should not be used for water
above 104°F (40°C).
2. Replace switch.
3. Remove obstruction to ensure free
motion of switch.
4. Remove clog in discharge piping.
5. Contact an electrician.
1. Replace pump.
2. Where applicable, remove screen
and volute, clean impeller or replace
impeller.
3. Install rubber coupling (not included) to
isolate pump vibration from discharge
piping.
1. Replace switch.
2. Remove obstruction to ensure free
motion of switch.
3. Remove clog in discharge piping.
4. Re-check sizing calculations to
determine proper pump size.
11
Corrective Action