6
© Copyright 2015 Zoeller
®
Co. All rights reserved.
PUMP INSTALLATION (continued)
positioning motor against the mounting frame and assembling
with four (4) 3/8” x 3/4” cap screws. The mounting base is
connected at the bottom of the mounting frame with two (2) of the
four (4) 3/8” x 3/4” cap screws.
5. Follow steps 5, 6, 7 and 8 of Rotor Seal Assembly to reassemble
the remainder of the pump. Because damage to the shaft seal is
most likely to occur in disassembly, a new seal will be necessary.
Symptom
Possible Cause(s)
Corrective Action
Pump won’t start or run.
1. Blown fuse.
2. Low line voltage.
3. Loose, broken or incorrect wiring.
4. Defective motor.
5. Defective pressure switch.
6. Impeller or seal.
7. Bad capacitor.
1. If blown, replace with fuse of proper size. Use time
delay fuses.
2. If voltage under recommended minimum, check size
of wiring from main switch on property. If OK, contact
power company.
3. Rewire any incorrect circuits. Tighten connections,
replace defective wires.
4. Replace.
5. Adjust switch settings. Clean contacts with emery
cloth if dirty.
6. If impeller won’t turn, remove housing and locate
source of binding.
7. Replace.
Pump starts and stops too often.
1. Leak in pressure tank.
2. Defective air volume control.
3. Faulty pressure switch.
4. Leak on discharge side of system.
5. Leak on suction side of system.
6. Leak in foot valve.
1. Repair leaks or replace tank.
2. Clean or replace defective control.
3. Adjust switch settings. Clean contacts with emery
cloth if dirty.
4. Repair leaks as necessary.
5. Make sure above ground connections are tight. Then
repeat test. If necessary, pull piping and repair leak.
6. Repair or replace.
Pump won’t shut off.
1. Wrong pressure switch setting or
setting “drift”.
2. Defective pressure switch.
3. Loss of prime.
4. Low well level.
5. Fouled ejector.
1. Adjust switch to proper setting.
2. Replace switch if defective.
3. Reprime if necessary.
4. If undersized, replace pump or ejector.
5. Clean.
Pump operates, but delivers little or no water.
1. Low line voltage.
2. System incompletely primed.
3. Air lock in suction line.
4. Undersized piping.
5. Leak in air volume control or tubing.
6. Leak on suction side of system.
7. Low well capacity.
8. Plugged ejector.
9. Defective or plugged foot valve and/
or strainer.
10. Worn or defective pump parts or
plugged impeller.
1. If voltage under recommended minimum, check size
of wiring from main switch on property. If OK, contact
power company.
2. Reprime if necessary.
3. Rearrange piping to eliminate air lock.
4. Replace undersized piping or install pump with higher
capacity.
5. Tighten all fittings and replace control if necessary.
6. Make sure above ground connections are tight. Re-
peat test. If necessary, pull piping and repair leak.
7. Close down the valve on discharge side of pump to
limit flow of water, in keeping with well capacity.
8. Clean and reinstall if dirty.
9. Clean, repair or replace as needed.
10. Replace worn parts or pump. Clean parts if required.
TROUBLESHOOTING
