Pump operation
Pump and valve body cleaning
Injection valve cleaning
Bottom filter cleaning
Inspection of intake and flow pipes to
identify obstructions and/or punctures
TROUBLESHOOTING
Given the sturdiness of the system, mechanical failures do not occur. Sometimes liquid may leak from a loose connection or
pipe clamp, or simply due to the rupture of the flow pipe. Leaks are rarely caused by the rupture of the membrane or by the wear
of the membrane gasket. In this case these components must be replaced by removing the four screws of the pump body,
remounting the screws and clamping them evenly. When the leak has been eliminated, any residues of additive must be
removed from the metering pump, as by stagnating it would corrode the pump casing.
Any intervention or repair within the equipment must be carried out by qualified and authorised personnel.
In the event of maintenance and/or technical work, always make sure that the pump is disconnected from the electrical
mains and that you are wearing protective clothing and equipment (gloves and safety goggles).
FAULT
The pump is not metering
The electronic part does not transmit
pulses to the magnet
No LEDs switched on
LED on, the pump is not running.
The pump runs irregularly
The pump does not run in the functions:
1:N (with meter)
As soon as the pump is switched on it
beats two or three times and then blocks
There is an infiltration
The pump runs but does not draw the
liquid
32 ENGLISH
ROUTINE MAINTENANCE TABLE
2 weeks
1 month 2 months 3 months 4 months 6 months 12 months
• Check valve mounted incorrectly or deteriorated: mount it properly or replace it by following the
routine maintenance advice;
• Membrane deteriorated, replace it;
• Magnet fuse blown, replace it (check magnet resistance)
• Electromagnet blown, replace it
Electronic board blown due to overvoltage, no earthing, etc.: replace the board
Check that the pump is powered correctly (socket and plug): if the pump remains inactive, please
contact our Service Centres.
Check that the programming is correct, or press the START/STOP button; if the problem persists,
check that the external stop is not activated or if the pump is in stand-by due to the intervention of the
level probe.
Check that the value of the power supply voltage is within the specified limits.
Check the connection between the meter output and the corresponding connector on the pump,
check that the display receives the pulse from the meter (indicated with a dot lighting up on the left
side of the display)
Check the settings of the Level and Flow Sensor menu (if featured in the pump menu)
a) Through the head gasket
Undo the four head screws and make sure that the o-ring of the pump body is in good condition
and that the diaphragm is screwed on correctly, otherwise replace them. Also make sure that the
infiltration did not damage the board or the magnet.
b) Through the control panel
Observe the board and check the state of preservation of the electrical components and printed
circuit tracks. Check the electrical resistance of the electromagnet.
In the event that one of the two components is damaged, replace it. Make sure that all the
components that secure the flow pipe are mounted properly and that they are not damaged.
Replace also serigraphy which enabled the infiltration.
Remove the suction and discharge valves, clean them and replace them in the same position.
Check the state of clogging of the filter and the injection valve
Time interval
SOLUTION