Lowara Q-Smart Manuel D'installation, D'exploitation Et De Maintenance page 55

9 ALARMS
BOOSTER APPLICATION (parameter bS is se-
lected, section 5.4.3)
List of alarms
N° Description
A01 Fuse F1 pump 1 burned.
Troubleshooting:
Fuse 1 for pump 1 is burned.
Pump 1 affected by the fault is excluded from opera-
tion. When the fault is resolved, the pump is reac-
tivated automatically. Intervention of the fuse auto-
matically enables the other pump if there is demand
condition.
Causes/solutions:

The motor of pump 1 is damaged and must be
replaced.

The power cable of the motor is faulty or worn:
replace the cable.

The capacitor of the motor for pump 1 is dam-
aged and must be replaced.
N° Description
A02 Fuse F2 pump 2 burned
Troubleshooting:
Fuse 2 for pump 2 is burned.
Pump 2 affected by the fault is excluded from opera-
tion. When the fault is resolved, the pump is reac-
tivated automatically. Intervention of the fuse auto-
matically enables the other pump if there is demand
condition.
Causes/solutions:

The motor of pump 2 is damaged and must be
replaced.

The power cable of the motor is faulty or worn:
replace the cable.

The capacitor of the motor for pump 2 is dam-
aged and must be replaced.
N° Description
A05 The sensor is faulty. The
alarm is not managed in man-
ual mode.
Troubleshooting:
Signal below the minimum value of 3.8 mA. In the
case of an alarm, all the pumps are stopped. The
alarm will appear if the signal is below 3.8mA and it
is managed only if the sensor is used (c03=2).
The alarm is excluded in manual mode.
Causes/solutions:

Check that the sensor and connector are con-
nected.

Open the cover and check that the power cord
of the sensor is connected and secured to the
terminals. Refer to figures 6,
Reset
Auto
Reset
Auto
Reset
Auto
7 and 9.

Check if the cable of the sensor is connected
correctly. Refer to figures 6,

The power cable of the sensor has deteriorated:
replace the cable.

The plastic connector has deteriorated: replace
the connector.

Replace the faulty sensor.
N° Description
A24 Auto-test pump 1 failed
Troubleshooting:
The Auto-test of pump 1 has failed. The test is
stopped due to intervention of the membrane pres-
sure switch connected to the D IN PROG (c38=1).
The pressure in delivery side achieves the setting of
the pressure switch.
Causes/solutions

The pump (impeller or diffuser) is damaged.
Contact the technical assistance service.

The motor pump 1 doesn't run:
o
It is damaged and must be replaced. Con-
tact the technical assistance service.
o
The thermal protector inside the motor is
faulty or broken.
o
The capacitor is damaged.
N° Description
A25 Auto-test pump 2 failed
Troubleshooting:
The Auto-test of pump 2 has failed. The test is
stopped due to intervention of the membrane pres-
sure switch connected to the D IN PROG (c38=1).
The pressure in delivery side achieves the setting of
the pressure switch.
Causes/solutions

The pump (impeller or diffuser) is damaged.
Contact the technical assistance service.

The motor doesn't run:
o
It is damaged and must be replaced. Con-
tact the technical assistance service.
o
The thermal protector inside the motor is
faulty or broken.
o
The capacitor is damaged.
N° Description
A36 High pressure alarm
Troubleshooting:
The pressure value has reached the set value of the
high pressure switch P MAX.
All the pumps are stopped.
The alarm is excluded in manual mode.
Causes/solutions

The pressure has reached the set value of the
high pressure switch P MAX: check the pump
performance curve and the proper set point
(r07) or thresholds of the pumps (r11, r13).
en - Original instructions
7 and 9.
Reset
Auto
Reset
Auto
Reset
Auto
55