Espa CKE Serie Manual De Instrucciones página 13

8. COMMON MALFUNCTIONS, POSSIBLE CAUSES AND SOLUTIONS
MALFUNCTION 1: THE PRESSURE UNIT DOES NOT START
MALFUNCTION 2: THE PRESSURE UNIT DOES NOT STOP
MALFUNCTION 3: THE UNIT STARTS AND STOPS CONTINUOUSLY
MALFUNCTION 4: THE PRESSURE DELIVERED BY THE UNIT IS INSUFFICIENT
MALFUNCTION 5: THE PUMPS OPERATE BUT DO NOT DELIVER FLOW
MALFUNCTION 6: DISCONNECTION OF THE THERMAL STOP
MALFUNCTION 7: THE UNIT DOES NOT PRIME ITSELF
Pay attention to the messages that appear on the controller screen, as the electronics of the CKE/CPE units
performs various safety and operational tests on the device and reports on detected errors (see specific manual
of the ESD/ECD).
MALFUNCTION
1 Low-water system triggered
1 Power outage in the control panel
Thermal relay triggered by wrong voltage Check that the voltage/intensity/thermal relay is
1
1, 2 Transducer broken or blocked
Stop pressure greater than the maximum
2
pressure delivered by the pump
Water consumption greater than expected Make sure there are no water leaks at any point
2, 4
Air intake by suction
2, 4, 5, 7
Gate valve closed or check valve
5
mounted the wrong way round
Too much air in the accumulator.
3 Remember: 0.5 bar less than the start-up
pressure
No air in the accumulator
3
Accumulator access pipe closed by a
3
valve
3, 7 Suction valves or pipes blocked
Water recirculation between the pumps of
4
the unit
The pumps spin in the opposite direction
4
tothat indicated by the arrow
Wear of the hydraulic part of any of the
4
pumps
A pump may be stopped in multiple units Check whether the thermal relay has been
4
Load losses greater than expected
5
Unprimed pumps
5
Incorrect amperage setting
6
Excessive consumption of the pump
6
motor
The diameter of the suction duct is too
small;
7
causing sudden direction changes of the
suction duct, siphon effect.
POSSIBLE CAUSES
excessive use of couplings,
Reset it or wait for the water level to recover
Check the protective fuses and the thermal relay
the same as that of the technical information
plate or contact Technical Service
Replace it
Adjust to the correct pressure
of the installation or contact Technical Service
Check the location of the air intake and properly
seal the couplings and joints or repair/replace
the damaged pipe
Open or switch the direction of the valve
Set the correct air pressure
Set the correct air pressure or replace the
membrane
Open the valve
Clean or replace
Check the anti-backflow valves.
Invert two phases on the panel.
Contact Official Technical Service
triggered and reset it Try to eliminate the load losses or reduce the
suction height.
Prime the pumps properly through the priming
hole or check that the priming tank is properly
installed
Set it according to the amperage of the motor
(10%)
Check that the shaft spins freely
Check that the suction duct is fitted properly.
13
SOLUTIONS
EN