WITA Delta Plus UE 35A-XX PWM Series, Перевод оригинальных инструкций по установке и эксплуатации

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Operating instrutions
WITA Delta Plus UE 35A-XX PWM | UE 55A-XX PWM
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13 Service and Maintenance
Switch off the power to the system before performing maintenance, cleaning
or repair work, and secure it against unauthorised reactivation.
Allow the pump to cool down in the event of high temperatures
and system pressures. There is a risk of scalds!
14 Faults, causes and Remedies
Maintenance work or repair attempts may only be undertaken by qualified persons.
Switch off the power to the system before performing maintenance, cleaning or repair work,
and secure it against unauthorised reactivation. Allow the pump to cool down in the event of
high temperatures and system pressures. There is a risk of scalds!
Error indication or
Error code in the display
of the pump
The pump does not supply
display does no lit
The pump is running but no
water will be supplied
possible causes
Problems with the power
supply
Air in the system
Valve closed
Rotor blocked
remedy
check the power supply
If necessary, switch on the protective switch again.
bleed the pump ( see chapter 10 in the manual )
Open the Valve
Switch the pump off and secure against being
switched 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
reassemble the pump.
In case of slightly blocking could it be sufficient if
the shaft will be moved manual with a screwdriver
The shaft does have a notch for these purpose and
is accessible after loosening of the vent screw.
ATTENTION ! Hot water could come out !!!
Risk of Scalding !!!
Is the error still existing the pump must be replaced