USA and Canada 800.683.2378, International 904.641.1666
25
TROUBLESHOOTING – MOTOR
HAZARDOUS VOLTAGE:
DISCONNECT
power cord before removing motor cover for service.
Electrical service
should be performed by trained personnel only.
PROBLEM
POSSIBLE CAUSE
SOLUTION
Loud or excessive noise
Worn ball bearings
Replace rotor assembly
Insufficient lubrication
Apply AquaShield
®
to gears and gear posts
Worn gears or gear posts
Inspect and/or replace gears and gear posts
Motor does not work;
Faulty electrical supply
Check supply voltage circuit
fan does not turn
Rotor bound to coil
Replace bearing brackets if cracked
Damaged motor coil
Replace motor coil
Worn or damaged rotor bearings
Replace rotor assembly
Damaged power cord
Inspect and/or replace power cord
Rotor rusted to coil
Clean off coil and rotor or replace
Faulty wire connections
Inspect and/or repair electrical connections
Obstructed fan
Remove obstruction
Motor runs; fan turns,
Worn or damaged gears
Replace gears as needed
output shaft does not
Motor overheats and
Incorrect voltage
Check voltage and frequency matches
shuts off and on
data label
High ambient temperature
Pumps are rated at 125˚F maximum
Damaged/malfunctioning coil
Replace motor coil
Phenolic gear is stripping
Water intrusion
Use rain roof & replace phenolic gear
Cracked bearing bracket
Replace bearing bracket & phenolic gear
Worn gear posts
Replace gear posts & phenolic gear
Rusted helical gear at end of rotor
Buff off rotor or replace rotor,
replace phenolic gear
Worn gear case cover
Replace gear case
Insufficient lubrication
Lubricate with AquaShield
®
