6.6
Alarm codes
Installation and operating instructions • Isar BOOST5 • Ed.06/2024-05
LED in range 1-6 flashes green + LED flashes red
Alarm 1
Low water
If there is low water on the suction side for more than 7 seconds, the alarm is
displayed.
•
Check the water supply on the suction side.
•
Fill pump.
The product restarts automatically after 1 min, 15 min, 30 min, 1 hr, etc.
Alarm 2
The product does not reach the set pressure.
•
Contact customer service.
Alarm 3
/
Alarm 4
Outlet pressure below 0.2 bar (damaged pipe).
•
Eliminate the cause.
•
To reset the alarm, switch the product off and back on with the "On/Off"
operating button (Fig. 2, Item 3).
•
Check why pressure was reset to zero.
Alarm 5
Supply voltage too low.
•
Ensure a power supply of 230 V ±10%.
Alarm 6
Switch-off signal from the outside
Example
Low water: LED 1 flashes green + red LED flashes
LED in area 1-6 lights up green + LED flashes red
Alarm 1
Short-circuit
•
Switch off unit.
•
Contact customer service.
•
To reset the alarm, switch the product off and back on with the "On/Off"
operating button (Fig. 2, Item 3).
Alarm 2
Overcurrent
Current consumption exceeds the permissible tolerance.
•
To reset the alarm, switch the product off and back on with the "On/Off"
operating button (Fig. 2, Item 3).
•
If the alarm is still displayed, contact customer service.
Alarm 3
Module temperature too high
•
Check the temperature of the fluid.
•
If the fluid temperature exceeds 40 °C, contact customer service.
If the temperature drops below the alarm threshold, the product is automati-
cally reset.
Alarm 4
Motor temperature too high.
•
Check the temperature of the fluid.
•
If the fluid temperature exceeds 40 °C, contact customer service.
If the temperature drops below the alarm threshold, the product is automati-
cally reset.
Alarm 5
Pressure sensor signal fault
•
Contact customer service.
Alarm 6
Volume flow sensor signal fault
•
Contact customer service.
Example
Short-circuit: LED 1 lights up green + red LED flashes
en
17
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