Energy Saving

20
troubleshooting
PROBLEM CAuSE SOLuTION
The pump
is noisy
The pump
does not start
Should you fail to eliminate the cause of the malfunction, refer to the nearest Service Center.
unlocKing ProceDure
• A red light in the LED indicates a locking.
• Turn the selector to the position MAX to start the automatic release process – the
warning light (LED) blinks.
• Reiterate previous operation several times.
• If the locking is not removed through the automatic release process (the warning
light returns to be red), it is necessary to perform the manual proceeding described
in the next steps.
• Disconnect power supply - the warning light switches off.
• Close the interception organs upstream and downstream of the pump and let it
cool. Disassemble the motor and clean the impeller.
• Set the selector on the wished position.
• Connect power supply
• If the pump doesn’t run see troubleshooting chart.
5. SPare PartS
Suction pressure is insufficient
- cavitation
Increase the static pressure
of the system
Loud noises of water circulation Reduce the rotation speed
Presence of foreign bodies
in the impeller
Lack of power supply
(the warning light is off)
Presence of foreign bodies in
the impeller (the warning light is red)
Disassemble the motor and
clean the impeller
Verify voltage value of the
electric plant
Verify the connection of the motor
Verify the fuses of the plant
Disassemble the motor and clean the
impeller if the unlocKing
ProceDure (see below) doesn’t
succeed
With high fluid temperatures and pressures there is the risk of burnings.
hazard of scalding by simple contact.
Should you need to order any spare parts, always provide all rating data of the pump.
reserved right of modification.