Remedy
• Remove impurities. Deblock the pump from the front of the control box with a screwdriver.
Cause
Pump is defective.
Remedy
• Replace the pump.
Insufficient flow
Cause
Pump performance is too low.
Remedy
• Check the external controller and the pump settings.
Cause
Hydraulic system is closed or system pressure is insufficient.
Remedy
• Check the non-return valve and filter. Increase the system pressure.
Pump runs at maximum speed and cannot be controlled
Cause
No signal from signal cable.
Remedy
• Check if the cable is connected to the controller. If it is, replace the cable.
Fault indication on the operating panel
When an alarm is active, the LEDs indicate the alarm type as defined in the table below.
If multiple alarms are active at the same time, the LEDs only show the error with the highest priority. The priority is defined
by the sequence of the table.
Operating panel
LED1
red
LED2
green
LED3
yellow
LED4
yellow
LED5
yellow
Indication Pump operation Counter action
● ● Rotor is blocked.
Trying to start again
every 1.33 seconds.
Wait or deblock the
shaft.
● ● Supply voltage too low.
Only warning, pump
runs.
Control the supply
voltage.
● ● Electrical error.
Pump is stopped
because of low supply
voltage or serious
failure.
Control the supply
voltage.
Replace the pump.
See also https://www.youtube.com/watch?v=cMC02526Z_s.
UPM3
14
58
Fault finding the product
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