US and Canada 800.683.2378, International 904.641.1666 Classic Series
23
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
Damaged bearing brackets or Replace bearing brackets and
tolerance rings tolerance rings
Insufficient gear 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
Bearing brackets broken Replace bearing brackets
Damaged motor coil Replace motor coil
Worn or damaged rotor bearings Replace rotor assembly
Damaged power cord Inspect and/or replace power cord
Rotor bound or 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 to 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 & affected gears
Rusted helical gear at end of rotor Buff off rotor or replace rotor,
replace phenolic gear
Worn or cracked gear case cover Replace gear case or gear case cover
Insufficient lubrication Apply AquaShield
™
to gears and
gear poststo gears and gear posts
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