There may be
rotation resistance
in the pump fan.
1. Disconnect all electrical power.
2. Remove the fan cover.
3. Rotate the fan by hand and
it should rotate freely.
There may be
cavitation in the pump
(demand for water
is higher than it
can pump).
* Cavitation can be
identified by the noise
of the pump. You
will hear a bubbling,
crackling sounds like
marbles rattling inside
the pump casing.
The length of the suction pipe may be too long,
or the internal diameter may be too small:
1. Reduce either the suction
height or distance.
2. Increase the suction pipe internal diameter
to same size as the pump inlet or larger.
There may be
excessive ambient
temperature.
The ambient temperature should be below
40°C. Check ambient temperature next
to the pump using a thermometer.
The pump fan
may be damaged,
or there may be
insufficient ventilation
to provide cooling.
1. Remove fan cover to check an ensure fan
blades do not have cracks or damages.
2. Check pump cover to make sure
there is sufficient ventilation and
the openings are not blocked.
The pump motor
thermal cut out
protection setting,
or fuses may not
be suitable.
Check protection devices with respect
to rated current of pump. The circuit
breaker should be rated to 10A.
The pump power cable
may be damaged.
Replacement parts required. Contact a pump
technician or call your local Reece branch.
The pump motor
may be damaged.
There may be resistance in the pump motor shaft
1. Disconnect all electrical power.
2. Remove the fan cover.
3. Rotate the fan by hand to
see if it rotates freely.
4. Ensure fan blades do not have
cracks or damages.
5. Remove pump casing and check for objects
jammed between moving components.
6. If still jammed, or damaged, replacement
parts required. Contact a pump technician
or call your local Reece branch.
41
SYMPTOM
CAUSE
SOLUTION
