Troubleshooting Chart - Berkeley 5FN-L Manuel D'utilisation

SYMPTOM POSSIBLE CAUSE(S)
Motor will not run Disconnect switch is off
Fuse is blown
Starting switch is defective
Wires at motor are loose,
disconnected, or wired incorrectly
Pressure switch contacts are dirty
Motor runs hot and Motor is wired incorrectly
overload kicks off
Voltage is too low
Pump cycles too frequently
Motor runs but no *Pump in new installation did
water is delivered not pick up prime through:
1. Improper priming
2. Air leaks
3. Leaking foot valve
* (Note: Check prime *Pump has lost prime through:
before looking for 1. Air leaks
other causes. Unscrew 2. Water level below suction of pump
priming plug and see
if water is in priming
Ejector or impeller is plugged
hole).
Check valve or foot valve is stuck
in closed position
Pipes are frozen
Foot valve and/or strainer are
buried in sand or mud
Pump does not Water level in well is lower than
deliver water to full estimated
capacity
Steel piping (if used) is corroded or
limed, causing excess friction
Piping is too small in size
Pump delivers water but Pressure switch is out of adjustment or
does not shut off. contacts are 'frozen'.
Faucets have been left open.
Venturi, nozzle or impeller is clogged.
Water level in well is lower than estimated.
Pump cycles too Standard pressure tank is waterlogged and
frequently. has no air cushion.
Pipes leak.
Faucets or valves are open.
Foot valves leak.
Pressure switch is out of adjustment.
Air charge too low in pre-charged tank.
Air spurts from faucets. Pump is picking up prime.
Leak in suction side of pump.
Well is gaseous.
Intermittent over-pumping of well.
(Water drawn down below foot valve.)

TROUBLESHOOTING CHART

CORRECTIVE ACTION
Be sure switch is on
Replace fuse
DISCONNECT POWER; Replace starting switch.
Refer to instructions on wiring. DISCONNECT POWER; check and tighten
all wiring.
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.
3. Replace foot 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 suction lift, a deep well pump is needed
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 well bottom
A deep well jet pump may be needed (over 25 ft. (7.6m) to water)
Replace with plastic pipe where possible, otherwise with new steel pipe
Use larger piping
DISCONNECT POWER; adjust or replace pressure switch.
Close faucets.
Clean venturi, nozzle or impeller.
Check possibility of using a deep well jet pump.
Drain tank to air volume control port. Check AVC for defects. Check for
air leaks at any connection.
Check connections.
Close faucets or valves.
Replace foot valve.
Adjust or replace pressure switch.
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 ( 207-345 kPa)), pump air into tank from outside source until air pres-
sure is 2 PSI (13.8 kPa) less than cut-in setting of switch. Check air valve for
leaks, using soapy solution and replace core if necessary.
When pump picks up prime, all air will be ejected.
Suction pipe is sucking air. Check joints.
Consult factory.
Lower foot valve if possible, otherwise restrict pump discharge.
10
Capacitor voltage may be hazardous. To discharge