Troubleshooting - Pentair FP4000 Series Owner's Manual

TROUBLESHOOTING

SYMPTOM
Disconnect switch is off .
Fuse is blown or circuit breaker tripped .
Starting switch is defective .
Motor will not run .
Wires at motor are loose,
disconnected, or wired incorrectly .
Pressure switch contacts are dirty .
Motor is wired incorrectly .
Motor runs hot and
Voltage is too low .
overload kicks off .
Pump cycles too frequently .
Pump in new installation did not pick up
prime through:
1 . Improper priming priming
Motor runs but no
2 . Air leaks
water is delivered*
3 . Leaking foot valve or check valve
Pump has lost prime through:
* (Notice: Stop
1 . Air leaks
pump; then check
2 . Water level below suction pipe inlet
prime before
Foot valve or strainer is plugged .
looking for other
Ejector or impeller is plugged .
causes . Unscrew
Check valve or foot valve is stuck shut .
priming plug and
Pipes are frozen .
see if water is in
Foot valve and/or strainer are buried in
priming hole) .
sand or mud .
Water level is too low for shallow well
setup to deliver water .
Water level in well is lower than
estimated .
Pump does not
Steel piping (if used) is corroded or limed
deliver water to full
causing excess friction .
capacity .
Piping is too small in size .
Packed well point .
Pressure switch is out of adjustment or
contacts are welded together .
Pump delivers
Faucets have been left open .
water but does
Venturi, nozzle or impeller is clogged .
not shut off or
Standard pressure tank is waterlogged
pump cycles too
and has no air cushion .
frequently .
Pipes leak .
Foot valves leak .
Air charge too low in pre-charged tank .
Pump is picking up prime .
Leak in suction side of pump .
Air spurts from
Well is gaseous .
faucets .
Intermittent over-pumping of well .
(Water drawn down below foot valve .)
P15002 (11-01-22)
POSSIBLE CAUSE(S) CORRECTIVE ACTION
Be sure switch is on .
Replace fuse or reset circuit breaker .
DISCONNECT POWER; Replace starting switch .
Refer to instructions on wiring (Page 8) . DISCONNECT POWER; check
and tighten all wiring .
Capacitor voltage may be hazardous . To discharge capacitor,
hold insulated handle screwdriver BY THE HANDLE and short capacitor
terminals together . Do not touch metal screwdriver blade or capacitor terminals .
If in doubt, consult a qualified electrician.
DISCONNECT POWER and file contacts with emery board or nail file.
Refer to instructions on wiring .
Check with power company . Install heavier wiring if wire size is too small (See
Electrical / Wiring Chart) .
See section below on too frequent cycling .
In new installation:
1 . Re-prime according to instructions .
2 . Check all connections on suction line, AVC, and ejector with soapy water or
shaving cream .
3 . Replace foot valve or check valve .
In installation already in use:
1 . Check all connections on suction line and shaft seal .
2 . Lower suction line into water and re-prime . If receding water level in well
exceeds 25' (7 .6M), a deep well pump is needed .
Clean foot valve or strainer .
Clean ejector or impeller .
Replace check valve or foot valve .
Thaw pipes . Bury pipes below frost line . Heat pit or pump house .
Raise foot valve and/or strainer above bottom of water source .
Clean foot valve and strainer .
A deep well jet package may be needed (over 25 ft . to water) to deliver water .
A deep well jet will be needed if your well is more than 25' (7 .6M) depth to water .
Replace with plastic pipe where possible, otherwise with new steel pipe .
Use larger piping .
Backflush well point or sink new point.
DISCONNECT POWER; adjust or replace pressure switch .
Close faucets .
Clean venturi, nozzle or impeller .
Drain tank to air volume control port . Check AVC for defects . Check all
connections for air leaks .
Check connections .
Replace foot valve .
DISCONNECT POWER and open faucets until all pressure is relieved .
Using tire pressure gauge, check air pressure in tank at valve stem located on
the tank . If less than pressure switch cut-in setting (30-50 PSI), pump air into
tank from outside source until air pressure is 2 PSI less than cut-in setting
of switch . Check air valve for leaks (use soapy solution) and replace core if
necessary .
When pump has picked up prime, it should pump solid water with no air . Suction
pipe is sucking air . Check joints for leaks with soapy water .
Consult factory about installing a sleeve in the well .
Lower foot valve if possible, otherwise restrict pump discharge
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