12
Circulation pump
OEG UPH 15
GB
6. Maintenance, replacement and repair
UPH 15 pumps do not require regular maintenance. Ensure to
disconnect the pump from the voltage supply before working on
it. Close the shut-off valve. Damaged cables must only be repaired
by qualified specialists. Remove the pump from the pipeline before
repairing it.
Problem
Possible cause
Remedy
The pump cannot
No voltage supply Check the electrical connection
be switched on.
and the fuse
Wrong voltage
Correct voltage 230 V AC / 50 Hz
Wrong condenser
Replace condenser
The impeller is
Clean the pump and the impeller
blocked, possibly
using appropriate tools
by deposits
The system is
Flow rate is
Use a smaller pump
too noisy
too high
Air in the system
Vent the system
The pump is
Air in the pump
Die Pumpe entlüften
too noisy
Inlet pressure
Increase the inlet pressure
too low
