Troubleshooting Chart - Pentair HYDROMATIC B75-M1 Manual Del Usuario

TROuBLEShOOTINg ChART

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.
pROBABLE CAuSE(S)
Blown fuse.
Low line voltage.
Defective motor.
Defective switch.
Impeller.
Switch obstructed.
Backflow of water from piping.
Faulty switch.
Defective switch.
Restricted discharge
(obstacle in piping).
Switch obstructed.
Low line voltage.
Something caught in impeller.
Worn or defective parts or
plugged impeller.
CORRECTIVE ACTION
If blown, replace with fuse of proper size.
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 switch.
If impeller won't turn, remove lower pump body and locate source of binding.
Remove obstruction.
Install or replace check-valve.
Replace switch.
Replace 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.
Clean out impeller.
Clean impeller if plugged; otherwise replace pump.
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