11
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8
6
9. Troubleshooting
9.1 Motor
Problem
Possible cause
Possible remedy
1. The motor does not
start and makes no
noise.
a)
Check the electric connections.
If the fault is repeated
immediately, this means that the
motor is short circuiting.
b)
Check that the motor is live.
If the fault is repeated
immediately, this means that the
motor is short circuiting.
c)
Check the protection fuses.
If fuses are burnt out, change
them.
d)
Check that the pressure switch is
live.
Verify power at the switch
terminals.
e)
Ensure that the tank pre-loading
pressure is not higher than the
minimum value of the pressure
switch.
Set the pre-loading pressure 3 psi
below the minimum value of the
pressure switch.
2.
The motor does
not start but makes
noise.
a)
Ensure that the power supply
values are the same as the
values on the nameplate.
Correct any errors.
b)
Ensure that the connections have
been made correctly.
Correct any errors.
c)
Look for possible blockages in
the pump or motor.
Remove the blockage.
d)
Check the condition of the
capacitor.
Replace the capacitor.
3.
The motor turns
with difficulty.
a)
Check the voltage which may be
insufficient.
Correct any errors.
b)
Check whether any moving parts
are scraping against fixed parts.
Eliminate the cause of the
scraping.
4.
The motor does
not stop when the
demand for water
has ceased.
a)
Ensure that the value at which
the pressure switch is set to stop
the motor is not higher than the
pressure than the pump can
generate (s delivery).
Set the pressure switch at a lower
pressure.
b)
Check that the pressure switch
contacts move freely.
Otherwise change the pressure
switch.
