12. ALARMS
Error reset can be automatic or manual, depending on the error that occurs. Manual reset is carried out using the
enter button and then start to restart the pump.
Code
Description
EN
Blockage due to no water.
Er01
No water in the suction tank.
Er02
Faulty pressure sensor – Max. pressure exceeded
Er03
Blockage due to low supply voltage
Er04
Blockage due to high supply voltage
Er05
Blockage due to excessive number of starts
Blockage due to overcurrent in the electro
Er06
pump motor
Er07
Pump not fully primed
Er08
Blockage due to internal overheating
Er09
Blockage due to overpressure
Er10
Thermal-protector intervention detected
Er11
Blockage due to presence of air
From Er26
Internal hardware error
to Er31
In case of internal hardware error contact an authorised service centre.
13. WARNING
The Warning remains active until the cause is no longer present. In the Warning condition, the pump can still
operate normally but it may be near the limits of the Error condition.
Code
Symbol
W1
W2
W3
W4
W5
Page 20 / 80
Causes
20 restarts with stand-by time less than
5s
The pump is not properly primed or
there is air inside the pump casing. The
pump restarts whenever the system
pressure is under the restart pressure
threshold.
20 restarts with pump RUN time less
than 30s
The pump is running on the left part of
the performance curve
The pump is running on the right part of
the performance curve
Reset
Causes
ERR
No water in the suction tank.
The unit stops and then restarts automatically.
MAN
An attempt is made every 10 minutes for a total
of 5 attempts
MAN
Faulty pressure sensor
Supply voltage lower than 185V.
AUT
- The system restarts automatically when the
supply voltage is higher than 190V.
Supply voltage higher than 255V.
AUT
- The system restarts automatically when the
supply voltage is lower than 250V.
The system has started more than 150 times
MAN
in 1 hour. An attempt to restart after 5 min for a
total of 6 attempts.
The system tries to restart automatically and
MAN
makes one attempt every 10 seconds for a total
of 3 attempts.
The system tries to restart automatically and
MAN
makes one attempt every 10 minutes for a total
of 5 attempts
Overtemperature detected on the board. The
AUT
error is restored when the temperature drops.
MAN
Pressure higher than 7.8 bar.
MAN
Motor overheating
MAN
Presence of air inside the pump casing.
MAN
Possible remedies
Check the membrane pressure, if necessary
install a tank of maximum 8 litres
Make sure that the pump casing is full of liquid
and that all the air has been expelled.
Check if there are small leaks in the system
META_S_Rev6-s11 - Operating Instructions