Troubleshooting - MasterPlumber 540023 Instalación - Operación - Piezas

Maintenance
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
Pump won't start or run.
Pump starts and stops
too often.
Pump won't shut off.
Pump operates but
delivers little or no water.
For parts or assistance, call Master Plumber Pump Customer Service at
PROBABLE CAUSE(S)
Blown fuse or breaker.
Low line voltage.
Defective motor.
Defective float switch.
Float obstructed.
Backflow of water from piping.
Faulty float switch.
Defective float switch.
Restricted discharge
(obstacle in piping).
Float obstructed.
Low line voltage.
Worn or plugged impeller.
Anti airlock vent hole is plugged.
CORRECTIVE ACTION
If blown, replace with fuse of proper size or reset breaker.
If voltage under recommended minimum, check size of wiring from
main switch on property. If OK, contact power company or hydro authority.
Replace pump.
Replace float switch.
Remove obstruction.
Install or replace check-valve.
Replace float switch.
Replace float switch.
Remove pump and clean pump and piping.
Remove obstruction.
If voltage under recommended minimum, check size of wiring from main
switch on property. If OK, contact power company or hydro authority.
Replace pump.
Clean out the vent hole with a hat pin or pipe cleaner.
1-800-628-9439
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