12
Trouble Shooting (cont’d)
Motor stalls /
Fuse blows or
circuit breaker
trips repeatedly.
1. Bypass valve sticking.
Remove and inspect valve; must
move freely & be free of debris.
2. Low voltage.
Check incoming line voltage while
pump is running.
3. Excessive rotor or vane
wear.
Check rotor & vanes for excessive
wear or damage.*
4. Debris in pump cavity. Clean debris from pump cavity.
Motor
overheats.
1. Pumping high viscosity
fluids.
These fluids can only be pumped
for short periods of time (less than
30 minutes duty cycle).
2. Clogged screen. Remove and clean screen.
3. Restricted suction pipe. Remove and clean pipe.
4. Motor failure. Return to place of purchase.
5. Pump rotor lock-up.
Clean and check pump rotor and
vanes.
Motor
Inoperative.
1.No power Check incoming power.
2. Switch failure. Replace switch (KIT320SW).
3. Motor failure. Return to place of purchase.
4. Thermal protector
failure.
Return to place of purchase.
5. Incorrect/loose wiring. Check wiring.
Fluid leakage.
1. Bad o-ring gasket. Check all o-ring gaskets.
2. Dirty shaft seal. Clean seal & seal cavity.
3. Bad shaft seal. Replace seal.
4. Incompatible fluid.
Refer wetted parts list to fluid
manufacturer.
5. Loose fasteners. Tighten fasteners.
Pump hums but
will not operate.
1. Motor failure. Return to place of purchase.
2. Broken key. Remove all debris & replace key.
Bold text indicates repairs that are not serviceable by the owner; pump must be returned to the point of purchase for
repairs.
* Repairs marked with an asterisk (*) will require Repair Kit KIT320RG This kit includes a replacement rotor and new
vanes, as well as a number of other important seals and components to complete the repair. Details of this kit are on
page 14.
IMPORTANT! Removal of the bypass
valve in the FR3200 series pump requires
special attention; please adhere to the
replacement procedure in the kit
instructions to minimize the possibility of
damaging the pump housing during the
removal and reinstallation process. Kit
instructions are available at
www.fillrite.com
Servicing the Bypass Valve
WARNING! Disconnect electrical power
and relieve any pressure in the lines prior
to servicing this pump! Failure to do so
can result in damage to the equipment
and personal injury or death!
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