Simer Pumps 2955-01 - Manual (Page 5)

Operation / Maintenance / Troubleshooting 5
For parts or assistance, call Simer Customer Service at 1-800-468-7867 / 1-800-546-7867
To Replace the Vertical Float Switch:
NOTICE: The float must be able to complete its entire cycle
without interference from any other object.
1. Mount the bracket on the switch housing with the bracket
mounting screws. See Figure 2.
2. Mount the float and the float rod stop on the rod.
3. Slide the rod up through the bracket and into the slot in the
bottom of the switch housing. Fasten the rod into the
switch housing with the pin. See Figure 2.
Make sure the pin holds the float rod in the
switch housing; otherwise the pump will not shut off.
NOTICE: Pull gently on the rod to make sure that it cannot
come out of the switch housing.
4. Mount the switch assembly on the pump with the screws
provided.
5. Run the pump through one complete cycle to verify switch
operation is correct and that nothing interferes with the
switch’s operation.
Flood hazard. May cause personal injury or prop-
erty damage. Failure to make this operational check can lead to
improper operation, premature pump failure and flooding.
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 a small hole in the side of the pump housing.
See Figure 1. This is an anti-airlock valve. If you suspect an air-
lock, insert a hat pin or a pipe cleaner into the anti-airlock hole
to clean out the debris.
Troubleshooting
SYMPTOM PROBABLE CAUSE(S) CORRECTIVE ACTION
Pump won’t start or run. Blown fuse. If blown, replace with fuse of proper size.
Low line voltage. If voltage under recommended minimum, check size of wiring from
main switch on property. If OK, contact power company or hydro authority.
Defective motor. Replace pump.
Defective float switch. Replace float switch.
Float obstructed. Remove obstruction.
Pump starts and stops Backflow of water from piping. Install or replace check-valve.
too often.
Faulty float switch. Replace float switch.
Pump won’t shut off. Defective float switch. Replace float switch.
Restricted discharge Remove pump and clean pump and piping.
(obstacle in piping).
Float obstructed.
Remove obstruction.
Pump operates but Low line voltage. If voltage under recommended minimum, check size of wiring from main
delivers little or no water. switch on property. If OK, contact power company or hydro authority.
Worn or plugged impeller. Replace pump.
Anti airlock vent hole is plugged. Clean out the vent hole with a hat pin or pipe cleaner.
Piggy-back
Plug
Switch
Housing
Bracket
Rod
Rod
Stop
Pin
Bracket
Mounting
Screws
Float
Be sure the pin
holds the rod
in switch
housing;
otherwise the
pump will not
shut off.
Figure 2 – Replace the Float Switch.