Operation 3
will stop the motor before it is damaged. When the motor has cooled
sufficiently, the overload protector will reset itself and the motor will
restart.
NOTICE If the overload protector stops the pump repeatedly,
disconnect the power from the pump and check it to find the problem.
Low voltage, long extension cords, clogged impeller, too much back
pressure in the discharge hose (as when pumping through 50’ (15 M)
of coiled hose), or running pump with no load, can all cause excessive
cycling and overheating. However, if the motor overload stops the
pump, allow it to cool for one hour before restarting. Motor will not
restart before the overload has cooled.
AIRLOCKS
When a pump airlocks, it runs but does not move any water. An airlock
will cause the pump to overheat and fail. This pump has an anti-airlock
hole in the bottom of the pump body. If you suspect an airlock, unplug the
pump, clean out the anti-airlock hole with a paper clip or piece of wire,
and restart the pump.
IMPORTANT: This hole allows the pump to start priming within
15 seconds in as little as 1/2” of water. NEVER restart pump in less than
1/2” of water. Leakage from the anti-airlock hole is normal.
Key Part Description Qty. Part No.
1 Screen 1 PS8-5P
2 Shield 1 PS70-3P
3 Impeller 1 PS5-25P
4 Motor 1 **
5 Power Cord 1 PS117-54-TSU
• Garden Hose Adapter 1 FT0013-43
TROUBLESHOOTING
** If motor fails, replace entire pump.
• Not Illustrated.
Assemble screen and shield as shown.
SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION
Pump won’t Blown fuse If blown, replace with fuse of proper size
start or run
Low line voltage If voltage under recommended minimum, check size of wiring
from main switch on property. If OK, contact power company
Defective motor Replace pump
Impeller If impeller won’t turn, remove screen. Locate source of binding
Pump operates but Low line voltage Use only 14 gauge or larger extension cords. Use short extension cords
delivers little or when necessary
no water
Something caught in impeller Clean out impeller
Small diameter garden hose Use larger diameter garden hose or 1” flexible pipe. Eliminate any
or long discharge line excess hose. Short hoses work best
Check valve installed without Drill a 1/16” - 1/8” (1.6 - 3.2 mm) dia. hole between pump
vent hole discharge and check valve
Air lock Turn off pump for a few seconds, clean out anti-airlock hole and restart pump
Coils or bends in hose Straighten hose
3rd
Anti-Airlock
Hole
5124 0905
Tighten 1st
Orient Part Number with
Anti-Airlock Hole as shown
2nd
3
2
4
5
1
Anti-Airlock
Hole
5125 0905
3
2
4
5
1
Anti-Airlock
Hole
5125 0905
For parts or assistance, call MasterPlumber Customer Service at 800-628-9439
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