Performance; Troubleshooting - Pentair FP5112 Installation & Operation Manual

PERFORMANCE / TROUBLESHOOTING

PERFORMANCE

MODEL
FP5112
(*) All performances shown are at 30 PSI discharge pressure.

TROUBLESHOOTING

SYMPTOM
Motor will not run. Fuse is blown or circuit breaker tripped.
Motor runs hot and Voltage is too low.
overload kicks off or motor
does not run and only
hums.
Motor runs but no water is Newly installed pump did not pick up a prime through:
delivered. 1.
2.
Note: Stop pump. Check
3.
prime before looking for
4.
other causes. Unscrew
priming plug and see if
water is in priming hole.
Existing pump lost prime through:
1.
2.
Either status:
1.
2.
3.
4.
Pump does not delivery 1.
water to full capacity. 2.
3.
4.
6
GPM (LPM) AT TOTAL FEET OF LIFT (m)
5' (1.5 m) 10' (3 m)
6.1 (23) 5.1 (19.3)
POSSIBLE CAUSE(S)
Improper priming,
Air leaks,
Leaking foot valve,
Pipe size too small.
Air leaks,
Water level below suction pipe inlet.
Impeller is plugged.
Foot valve is stuck shut.
Pipes are frozen.
Foot valve and/or strainer are buried in sand or mud.
Water being pumped is lower than estimated.
Corroded pipes or hoses
Piping is too small in size
Pump not being supplied with enough water.
15' (4.6 m) 20' (6.1 m)
4.2 (15.9) 3.9 (14.8)
DISCONNECT POWER. Replace fuse or reset circuit
breaker.
Check voltage being supplied to pump.
New installation:
1. Re-prime according to instructions.
2. Check all connections on suction line, with soapy
water or shaving cream.
3. Replace foot valve.
4. Re-pipe using pipe the same size as suction and
discharge ports on pump.
Existing installation:
1. Check all connections on suction line and shaft seal
with soapy water.
2. Lower suction line into water and re-prime. If the
water level is more than 25' (7.6M) below the pump, a
deep well pump is needed.
Either status:
1. Clean foot valve and strainer.
2. Replace the foot valve.
3. Thaw pipes.
4. Raise foot valve and/or strainer above bottom of
water source. Clean foot valve and strainer.
1. A deep well jet will be needed if your well is more than
25' (7.6M) depth to water.
2. Replace with plastic or new steel pipe
3. Re-pipe using pipe the same size as suction and
discharge ports on pump.
4. Inlet pipe is too small
1 25' (7.6 m)
3.0 (11.4)
CORRECTIVE ACTION
FP324 (07-01-23)