8
TROUBLESHOOTING – PA-120DEF
SYMPTOM
PROBABLE CAUSE
CORRECTIVE ACTION
A. MOTOR DOES NOT
1. Circuit breaker tripped
Manually reset circuit breaker located in cover assembly. See Operations
RUN
Section.
2. Switch defective
Remove cover assembly and inspect switch. Replace, if necessary.
3. Motor burned out
Remove motor and test by making grounded connection to GFCI protected
115-volt power. Replace, if necessary.
4. Thermal protector tripped
Turn switch off. Allow motor to cool. Protector resets automatically after
approximately 30 minutes. See Operations Section.
5. GFCI tripped
Manually reset GFCI. If motor does not run, disconnect power and check for wet
or damaged pump or power cord. Correct problem before resuming operation.
Operate pump only in dry locations.
B. MOTOR RUNS BUT
1. System air leak
Make sure all fittings and connections are tight. Inspect suction pipe, bung
DOES NOT PUMP
adapter and pump inlet seals for leaks or damage.
FLUID
2. Drive key broken
Replace key.
3. Strainer clogged
Remove coverplate. Clean strainer. Install again.
4. Gear coverplate O-ring worn Remove coverplate. Inspect O-ring and replace if worn or damaged.
5. Bypass poppet stuck open
Remove poppet and clean. Install again.
6. Suction pipe clogged,
Remove pump. Inspect suction pipe and clean or replace, as necessary.
damaged or missing
7. Gear drive shaft broken
Remove coverplate, gears, and motor. Remove and inspect drive shaft.
Replace, if necessary.
8. Gear wear
Remove the coverplate and inspect gears, and drive key. Gears must turn freely
with the drive key removed. Replace any worn or damaged parts.
C. LOW FLOWRATE
1. Low voltage
Check for adequate power supply voltage.
2. Strainer partially clogged
Remove coverplate. Clean strainer. Install again.
3. Suction pipe clogged or
Remove pump from tank. Inspect suction pipe and clean or replace, as
damaged
necessary.
4. Bypass poppet stuck open
Remove poppet and clean. Install again.
5. Gear wear
Remove the coverplate and inspect gears, and drive key. Gears must turn freely
with the drive key removed. Replace any worn or damaged parts.
6. Discharge hose too long
Long hoses reduce flowrate. Shorten hose.
7. Extension cord too long
Long cords reduce voltage at pump. Reduce cord length or use larger gauge
cord.
D. RAPID OVERHEATING 1. Duty cycle too long
Do not exceed the standard duty cycle of 30 minutes ON and 30 minutes OFF.
OF MOTOR
Allow the pump to cool for 30 minutes.
2. Strainer clogged
Remove coverplate. Clean strainer. Install again.
3. Thermal protector tripped
Turn switch off. Allow motor to cool. Protector resets automatically after
approximately 30 minutes. See Operations Section.