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15. Troubleshooting
Warning
Before maintenance and repair of the circulation pump,
make sure that the power supply is disconnected.
GB
OEG Heating and solar circulation pumps
Highly efficient. Simple. Good!
Pump does
not start
Display “Off“
Tripped fuse Replacement of fuse
Tripped RCCB Check insulation –
switch RCCB
on again
Defective motor
High voltage
Check if power
supply is in
defined range
Low voltage Check if power
supply is in
defined range
Excessive current,
board or motor
defective
Replacement of
pump
No medium Fill system,
check ball valves
Phase failure Check voltage sup-
ply for irregularities,
check board
Pump locks Check rotor for
unobstructed
movement
Wrong resistance
values, current
consumption of
motor does not fit
Replacement
of pump
Replacement of pump
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FailureControl panelCauseRemedy
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