Wilo Star-Z Nova T (4222650) - Инструкция по эксплуатации - Страница 24

Faults

24

WILO SE 05/2021

Engl

ish

Additional display 
symbols are 
shown.

Frequency overlap when 
operating in an industrial 
environment or in the 
proximity of radio 
transmitters.

This fault has no effect on 
the function of the pump.

Pump does not 
start.

Power supply cable break, 
short-circuit or defective 
fuses.

Have the power supply 
checked by a qualified 
electrician.

The time switching func

-

tion has switched off 
automatically.

Check the time switching 
function setting 



Page 20.

Motor is blocked, e.g. by 
deposits from the water 
mains.

Get the pump removed by 
a qualified technician 



Page 15.

Ensure that the impeller 
can move freely again by 
turning it and rinsing out 
the dirt that has accumu

-

lated.

The pump makes 
noises.

Motor scraping, e.g. 
caused by deposits from 
the water mains.

Running dry, too little 
water.

Check the shut-off 
devices, they must be 
fully open.

Air in the pump.

Switch the pump on/off 
5 x for 30 s at a time.

Faults, displays

Causes

Remedy

NOTICE: 

If you cannot rectify the fault, 

contact a specialist technician.