10
Troubleshooting
Symptom Possible Cause(s) Corrective Action
Motor will not run. Disconnect switch is off. Be sure switch is on.
Fuse is blown or circuit breaker tripped. Replace fuse or reset circuit breaker.
Starting switch is defective. DISCONNECT POWER; Replace starting switch.
Wires at motor are loose, disconnected, or
wired incorrectly.
Refer to instructions on wiring DISCONNECT POWER; check and tighten
allwiring.
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.
Pressure switch contacts are dirty. DISCONNECT POWER and file contacts with emery board or nail file.
Motor runs hot and overload
kicks off.
Motor is wired incorrectly. Refer to instructions on wiring.
Voltage is too low. Check with power company. Install heavier wiring if wire size is too small
(SeeTable II).
Pump cycles too frequently. See section below on too frequent cycling.
Motor runs but no water is
delivered*.
Pump in new installation did not pick up
prime through:
1. Improper priming.
2. Air leaks.
3. Leaking foot valve or check valve.
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.
Pump has lost prime through:
1. Air leaks.
2. Water level below suction pipe inlet.
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.
Foot valve or strainer is plugged. Clean foot valve or strainer.
Impeller is plugged. Clean impeller.
Check valve or foot valve is stuck shut. Replace check valve or foot valve.
Pipes are frozen. Thaw pipes. Bury pipes below frost line. Heat pit or pump house.
Foot valve and/or strainer are buried in
sand or mud.
Raise foot valve and/or strainer above bottom of water source. Clean foot valve
and strainer.
Pump does not deliver water to
full capacity.
Steel piping (if used) is corroded or limed,
causing excess friction.
Replace with plastic pipe where possible, otherwise with new steel pipe.
Piping is too small in size. Use larger piping.
Pump delivers water but does
not shut off or pump cycles too
frequently.
Pressure switch is out of adjustment or
contacts are welded together.
DISCONNECT POWER; adjust or replace pressure switch.
Faucets have been left open. Close faucets.
Impeller is clogged. Clean impeller.
Standard pressure tank is waterlogged and
has no air cushion.
Drain tank to air volume control port. Check AVC for defects. Check all
connections for air leaks.
Pipes leak. Check connections.
Foot valve leaks. Replace foot valve.
Pressure switch is out of adjustment. Adjust or replace pressure switch.
Air charge too low in pre-charged tank.
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.
Air spurts from faucets. Pump is picking up prime. When pump has picked up prime, it should pump solid water with no air.
Well is gaseous. Consult factory about installing a sleeve in the well.
Intermittent over-pumping of well. (Water
drawn down below foot valve.)
Lower foot valve if possible, otherwise restrict pump discharge.
Mechanical or noise problems. Bent shaft and/or damaged bearings. Take motor to authorized motor repair shop.
Suction and/or discharge piping not
properly supported and anchored.
See that all piping is supported to relieve strain on pump assembly.
* Stop pump; then check
prime before looking for
other causes. Unscrew
priming plug and see if
water is in priming hole.
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