Idiomas disponibles
Idiomas disponibles
50
Fault
Pump does not run
(no LED indication)
Short-circuit
when switching on pump
Power consumption
indicates fault «
(see section 5.1)
Noises from pump
Radiators do not heat up
english
9. Summary of malfunctions
Cause
No motor voltage
Mains supply
wrongly connected
Motor defective
Fault in electronics
»
Mains voltage too low
Air in pump
Cavitation
Pump too powerful
Pump too weak
Air in pump
Subject to technical modifications
Switch off all poles of the supply voltage without fail
before removing the terminal box cover and always
before dismantling the pump.
The electronics can still be live for up to 10 minutes
after switching off the power supply!
Remedy
Check switch and fuses,
check supply voltage
Connect correctly
Change pump
Restart pump
(switch mains supply ON/OFF)
Check control and mains
Vent system several times
with pump switched off.
Pump vented automatically
see sections 6.1
Increase system pressure/
reduce temperature
see section 10
Set lower characteristic
see section 6.1/smaller pump
Set higher characteristic,
see section 6.1
fit more powerful pump
Switch off automatic
night reduction Aut.
Vent system with pump off
see section 7.2
