K2 Pumps WPS05002K Notice D'utilisation page 36

TROUBLESHOOTING
Problem
Pump does not start or
run.
Pump will not prime.
Pump operates but
pumps little or no
water.
Pump starts and stops
too often.
Pump does not shut
off.
16
Possible Cause
1. The switch is off.
2. There is a blown fuse or
tripped breaker.
3. The pressure switch
contacts are dirty.
4. The wires at the motor are
loose or wired incorrectly.
1. The pump was primed
improperly or air is trapped
in the pipe.
2. There is an air leak.
3. The foot valve is plugged or
leaks.
1. The foot valve is buried in
sand or mud.
2. The ejector or impeller is
plugged.
3. The foot valve or inlet
strainer is clogged.
4. The voltage is not correct.
1. The tank was pre-charged
incorrectly.
2. There is a ruptured
diaphragm/bladder (pre-
charged tank)/or has no air
cushion.
3. The pipes are leaking.
4. The foot valve leaks.
5. The pressure switch is not
adjusted correctly.
6. The air charge is too low in
the
pre-charged tank.
7. Standard pressure tank
( Conventional Type) is
waterlogged ,and has no air
cushion.
1. The pipes leak.
2. The pressure switch is not
set correctly.
3. Venturi, nozzle or impeller is
clogged.
Corrective Action
1. Turn the power switch on.
2. Replace the fuse or reset the circuit breaker.
3. DISCONNET THE POWER. File or clean the
switch contacts.
4. DISCONNECT THE POWER.
Follow the wiring instructions to check and tighten
the wires.
1. DISCONNECT THE POWER. Adjust pump height
and make the pipe slope down to the well.
Remove the discharge tee and re-prime.
2. Check all connections and fix the leakage.
3. Clean or replace the foot valve.
1. Lift the suction pipe.
2. Clean the ejector or impeller.
3. Clean or replace as necessary.
4. Check the voltage switch.
1. Add or release air as needed.
2. Replace the tank/refill the air.
Test the tank by depressing the air valve. The air
valve will expel water if the bladder is broken.
3. Repair the pipe connections or replace the pipes.
4. Repair or replace the foot valve.
5. Closely look at the pressure gauge to see the
pump On/Off points are around
30 psi/50 psi. If not, adjust or replace the pressure
switch.
6. DISCONNECT POWER and open faucets until all
pressure is relieved. Using tire pressure gauge,
check air pressure in the tank at the valve stem
located on the tank. If less than pressure switch
cut-in setting (30 psi), pump air into the tank from
an outside source until air pressure is 2 psi less
than the cut-in setting of the switch. Check the air
valve for leaks (use soapy solution) and replace
core if necessary.
7. Drain tank to air volume control port, check AVC
for defects.
1. Locate and repair the leak or reconnect.
2. Reset or replace the pressure switch.
3. Remove the pump body and seal plate, observe it.
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