ELETTROPOMPE
®
8
10. Spare parts
Use only original spare parts. To order spare parts, refer to the catalogues or contact the SAER Technical Assistance
specifying the kind of pump, the serial number and the year of manufacture (all these data are to be found in the
identification plate).
This product is free from manufacturing defects.
Failures
Causes
Remedies
The motor will not
start: no noise or
vibration
Voltage does not get to the motor cable
Check appliance and/or electricity line
The fuses are burnt out
Replace the fuses with new ones
Motor cable broken
Repair or replace the cable
The motor will not
start: it is noisy and/or
vibrates
The motor has been connected wrongly
Correct any wrong connection (Fig. 3)
The capacitori s broken (for single phase motor)
Replace the capacitor
The rotating member is jammed
Dismantle and remove the cause
The protection
devices trip
The voltage is too high
Call the electricity company
A cable is earthed or short-circuited
Repair or replace the cable
The winding is earthed
Dismantle the motor and replace the winding
Cable terminals loose
Tighten all the terminals
The rotating member is jammed
Dismantle and remove the cause
Too much sand in the water
Reduce the rate of flow with the delivery
gate valve
Insufficient or zero
flow
The pump has not been filled with water
Fill the pump
The suction pipe is narrow or it is leaking
Replace the damaged pipe or gland
The foot valve is clogged
Clean or replace the valve
Impellers clogged
Dismantle and overhaul
The level in the well drops more than expected
Check the capacity of the well
Lower head than the
declared one
Wrong direction of rotation
Change the direction of rotation
Leakage in delivery pipe
Replace the damaged pipe or gland
Internal members worn out
Dismantle and overhaul
Air or gas in the water
Call the manufacturer
The electric pump
operates irregurarly
and/or vibrates
The pump operates at too low head
Regulate the gate valve on the delivery pipe
Mechanical members worn out
Dismantle and overhaul
The NPSH of the system is insufficient
Reduce the rate of flow
Before starting, prime the pump filling it with water via the hole in the loading plug in the upper part of the
pump casing.
After a period of time sufficient in order to reach the steady state, it shall be necessary to verify the following conditions:
lack of vibrations or of anomalous noises;lack of changes in the delivery;value of the absorbed current by the motor
not higher than the one indicated on the plate. In presence of one (or more) of the above mentioned conditions, it shall
be necessary to stop the pump and to find the cause.
If the electropump remains inactive at low temperatures or, at any rate, for a period exceeding three months,
it is a good idea to empty the pump attraverso l’apposito tappo.
7. Maintenance
The FC series electric pumps can be considered free from routine maintenance. In case extraordinary maintenance is required,
get in touch with the SAER Technical Assistance. Do not modify the product without the necessary preventive authorization.
Before executing any operation, turn off the power and prevent it from being reconnected.
8. Decomissioning and disposal
At the end of the operating life of the pump/electropump or any of its parts, it must be disposed of in observance of
current regulations. This is also valid for the liquid contents, with particular regard if classified toxic or harmful.
9. Failures, causes and remedies
GB
