Failure Detection; Possible Problems, Causes And Solutions - Espa ACUAPLUS N Manuel D'instructions

6.2. Default pressure adjustment
To raise or lower default pressure, the pump must be functioning and the RUN LED must be lit constantly. Change
the default pressure by pressing the (+) or (-) control button. Start-up pressure is adjusted 0.5 bar below default
pressure. (Fig. 11)
Comments:
Default pressure must be 0.5 bar above the highest outlet of the installation. Default pressure must be adjusted
from 1.5 bars to 4.5 bars. (Fig. 4)
6.3.

Failure detection

If the electrical circuit detects lack of water, the pump will stop and the Alarm LED will blink. The circuit will make
4 attempts; if pressure cannot be re-established because of lack of water, the circuit will stay in FAULT indefinitely,
until manual reactivation.
While the pump is stopped in FAULT mode, waiting for re-attempts, the Alarm LED will blink. After the 4 attempts
without success, the Alarm LED will remain lit without blinking.
The Fig. 10 shows the times that pass between the different attempts, if none of them is successful.
7. Maintenance
This equipment does not require maintenance. As a precaution, empty the lines and any water from inside the pump and
the Kit during periods of freezing temperatures.
If the pump is to remain idle a long time, disassemble the pump and store it in a dry, ventilated place.
WARNING: In the event of breakdown, both substituting electrical cable as well as handling the pump can be
performed only by an authorised technical service.
When the time comes to dispose of the pump, it does not contain any contaminating or toxic material. The main
components are properly identified for selective scrapping.
8.

Possible problems, causes and solutions

1. The pump does not start
2. The pump does not stop
3. The pump has no suction
4. The pressure or flow are insufficient
5. The motor overheats
6. The pump starts but stops in a short while (thermal protector)
7. The pump starts and stops constantly
8. The pump stops automatically
Problems
1,5,6
3,4
1,3,4
1,5,6
3,4
1
Causes
Pump blocked
Water entry filter obstructed
Total manometric height greater
than foreseen
Incorrect voltage
Drop in the well water level
No electricity
10
Solutions
Disassemble it and take it to an
Official Technical Service
Clean the filter
Check geometric height and load
losses
Make sure the mains frequency
and voltage correspond to what
is indicated on the characteristics
plate.
Make sure the suction remains
submerged
Check fuses and other protection
devices
Instruction Manual