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TROUBLESHOOTING
PROBLEM POSSIBLE CAUSES HOW TO CORRECT
If the pump
does not start
or run
Pump is not plugged in, switch or
breaker is off
Plug pump in or turn on
switch/breaker
Check for blown fuses or tripped
circuit breakers or tripped GFCI
outlets
Replace fuse, reset breaker,
reset GFCI outlet
Motor thermal protector tripped
Allow pump to cool. Pump will
reset
If the pump
runs but moves
little or no
water
Clogged intake screen Clean or replace screen
Clogged discharge hose/pipe Remove clog
Frozen discharge hose/pipe Allow hose/pipe to thaw
Pump is air locked
Clean out airlock hole with a
paper clip or pipe cleaner
Low line voltage
Check wire size and increase if
necessary
Worn, damaged or clogged pump
parts
Inspect for wear, damage or clog
and clean or replace if
necessary
Discharge head exceeds pump
capacity
If pumping height is over 25’, the
pump will not move water. See
performance chart
NOTICE Height and/or piping restriction will reduce the pump output performance. See
the performance chart below to insure you have the proper pump for your application.
Whenever possible use the same or larger size pipe than the pump discharge for optimum
performance. Reducing the pipe size will not harm your pump; it will just reduce the output.
PERFORMANCES
Discharge Height Above Pumping Level
Model 0’ 5’ 10’ 15’ 20’ 25’
Gallons per Minute
91025, 91026 26 21 14 10 7 1
91250, 91251, 91255, 91257 30 22 20 16 9 2
91330, 91335 40 34 28 22 12 2
91331, 91337 46 36 30 25 12 1
91501, 91505 70 66 58 48 25 10
SPECIFICATIONS
Power supply requirements 120V, 60 Hz
Motor
Continuous Duty, Capacitor Start,
Thermally Protected
Liquid Temperature Range 32° F - 120° F (0° C - 49° C)
Circuit Requirements 15 amp
Model
91025
91026
91250
91255
91251
91257
91330
91335
91331
91337
91501
91505
HP 1/5 1/4 1/4 1/3 1/3 1/2
Amps 3.6 3.8 3.8 4.1 4.1 7.6
Solids Handling 1/8” 1/8” 3/8” 1/8” 3/8” 1/2”
Warranty
(Years)
1 1 3 1 3 3
Discharge Size 1 ¼” 1 ¼” 1 ½” 1 ¼” 1 ½” 1 ½”
4 5