4
TROUBLESHOOTING GUIDE
Before servicing a pump, always shut off the main
power breaker and then unplug the pump - making sure you are
not standing in water and are wearing insulated, protective-sole
shoes. Under flooded conditions, contact your local electric
company or a qualified, licensed electrician for disconnecting
electrical service prior to pump removal.
If the above checklist does not solve the problem, consult
Zoeller Pump Company Product Support Department at
1-800-928-7867 or +1-502-778-2731. Do not attempt to service
or otherwise disassemble pump.
Go to www.zoellerpumps.com/servicestations to find the
Authorized Service Station in your area.
Condition
Possible Cause
Remedy
A. PUMP WILL NOT START OR RUN
Blown fuse
Have a qualified electrician check circuit.
Low voltage
Thermal overload open
Contact a Zoeller Authorized Service Station.
Bound impeller
Shorted motor or wiring
Damaged float
Bound float assembly
Check for debris around float.
B. PUMP TRIPS OVERLOAD OR
BLOWS FUSE
Incorrect voltage
Have a qualified electrician check circuit.
Bound impeller
Contact a Zoeller Authorized Service Station.
Shorted motor
C. PUMP STARTS AND STOPS TOO
OFTEN
Short cycling
Check for debris around float.
Damaged float
Contact a Zoeller Authorized Service Station.
D. PUMP WILL NOT SHUT OFF
Debris under float
Remove debris as necessary.
Damaged switch
Contact a Zoeller Authorized Service Station.
Switch out of adjustment
E. PUMP OPERATES BUT DELIVERS
LITTLE OR NO WATER
Plugged weep hole (air-locked)
Clear weep hole as necessary.
Obstruction in discharge line
Clear lines as necessary.
Discharge head exceeds capacity
Refer to pump performance chart on page 3,
or contact factory.
Low voltage
Have a qualified electrician check circuit.
© Copyright 2017 Zoeller
®
Co. All rights reserved.
