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www.lowara.com
GB
Installation and instruction manual DDC pumps
Troubleshooting
−
If the pump does not operate,
please check first whether the
power supply is operating
correctly.
−
If this does not resolve the
problem please unplug the
pump several times.
−
If this still does not result in
the pump starting, it is
probably blocked by particles
or deposits in the system.
−
Drain the system and remove
the pump.
−
Open the pump by removing
the four housing screws at
the bottom.
−
Remove the pump housing and
pull out the rotor.
−
Clean the rotor and the stator
with a clean cloth and purge
all dirt from the pump housing.
−
After reinserting the rotor into the stator perform a brief run test to make
sure that the rotor is spinning up. Caution: To avoid the introduction of
water into the electronics the pump should be completely dry before this
test is done.
−
If the rotor is spinning in the above test, remove the o-ring from its seat
and clean it carefully.
−
Re-insert the seal ring, place the pump housing on top of the motor and
screw it in place using the four screws.
−
If the pump still won’t work or if the rotor does not run during the run test
the pump needs to be replaced.
Pump
housing
Rotor
Seal ring
Stator
Housing
screws
