For parts or assistance, call Master Plumber Pump Customer Service at
800-628-9439
9. After piping, check valve and float switch
have been installed, the unit is ready for
operation.
10. Check the pump operation by filling sump with
water and observing pump operation through
one complete cycle. For switch settings see the
Electrical and Switch Specifications chart on
Page 2.
Risk of flooding. Can cause
personal injury and/or property damage.
Failure to make this operational check may
lead to improper operation, premature
failure, and flooding.
Operation
Risk of electric shock. Can shock,
burn or kill. Do not handle a pump or pump
motor with wet hands or when standing on wet
or damp surface, or in water.
1. Shaft seal depends on water for lubrication.
Do not operate pump unless it is submerged
in water as seal may be damaged if allowed
to run dry.
2. Motor is equipped with automatic reset
thermal protector. If temperature in motor
should rise unduly, switch will cut off all
power before damage can be done to motor.
When motor has cooled sufficiently, switch
will reset automatically and restart motor.
If protector trips repeatedly, pump should
be removed and checked as to cause of
difficulty. Low voltage, long extension cords,
clogged impeller, very low head or lift, or a
plugged or frozen discharge pipe, etc., could
cause cycling.
3. Pump will not remove all water. If operating
a pump manually, and suddenly no water
comes out of the discharge hose, shut off the
unit immediately. The water level is probably
very low and the unit has broken prime.
NOTICE For continuous operation, water
depth must be at least 5” (127mm) to
prevent the motor from overheating. A fully
submerged pump is preferred for proper
cooling when a pump runs continuously.
Risk of electric shock. Can
shock, burn or kill. Before attempting to
check why unit has stopped operating,
disconnect power from unit.
Operation 4
Inset Drawing
2 Slip the float and then the rod stop
onto the rod past the second nib.
1 Mount the bracket onto the switch
housing.
4 Attach the switch to the pump as shown.
Vertical Switch Assembly
Rod
Rod Stop
Float
Bracket
Bracket
Mounting
Screws
Switch
Housing
Pin
3 Insert the rod assembly up into the
switch housing and lock into place
with the pin.
NOTICE Be sure the pin holds the
rod into the switch housing or the
pump will not shut off.
