WITA go.future LED 40-XX Operating Instructions Manual page 36

Operating Instrutions
Error indication or
Error code in the display
of the pump
No automatic
regulation of the power
in the proportional pressure
stages
the left hand indiction field
of the power supply is flas-
hing in second intervals
E 1
E 2
E 3
Please contact a specialist technician should it not be possible to eliminate the fault.
36
WITA go.future LED 40-XX | 60-XX
possible causes
One in the system mounted
and opened overflow valve (
discharge valve )
prevents the regulation
Undervoltage
The pump will not supplied
with system voltage
The flashing of the display
arises from the fact that the
pump rotor itself through the
movement if the water turns
and the pumps feels like
a generator
Overcurrent protection circuit
Overtemperature
Rotor blocked
Overload
Electronic error
remedy
If possible remove the overflow valve ( discharge
valve ) or close it.
check the power supply
check the power supply
Press any key or disconnect the pump for at least
one minute.
If the error persists, the pump must be replaced.
sink the temperature in the system
Press any key or disconnect the pump for at least
one minute.
If the error persists, the pump must be replaced.
Switch the pump off and secure against being swit-
ched back on.
If possible, close the shut-off valve in front of and
behind the pump or drain the water.
Depending on the operating condition of the system,
hot water can escape! Risk of burns!
Unscrew the 4 head cap screws and remove the
pump head by loosening the motor head.
Pump impeller must be able to rotate easily.
Remove any impurities or foreign bodies and reas-
semble the pump.
If the error persists, the pump must be replaced.
check the power supply
replace the pump