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Riotec / Riotec Z
Tabelle I (Part 8: Problems, Causes and Solutions)
Code
Fault /error
Error-
Manual
Switch off
Cause
Solutions
No.
LED *)
Reset
at x
errors/
24 hrs
E01
Pump does not run despite
O
W
Elektric fuse defect,
Check fuse
being plugged in
W
No voltage in pump,
Restore
voltage
E02
Water temperature < 20 °C
O
W
Protective motor switch
Adjust to higher temperature
connected incorrectly
E03
Water temperature >110 °C
O
W
Protective motor switch
Adjust to lower temperature
connected incorrectly
E04
Mains under voltage
P
< 5 min: W
Mains overloaded
Check electronic installation
Yes
> 5 min: x=6
E05
Mains under voltage
P
< 5 min: W
Yes
> 5 min: x=6
E07
Generator mode
O
W
Driven by admission pressure
Balance out the capacity regulation
pump
of the pumps
E10
Pump blocked
P
Yes
x=1
e. g. sedimentation
De-blocking routine starts auto-
matically. Should this not remove
the blockage, the pump switches
off.
Call customer services.
E11
Motor running idly
O
W
air in the pump
Ventilate the pump and the unit.
E20
Coil overheated
P
Yes
x=6
Motor overloaded
Let motor cool down,
setting
Ambient temperature too high
Reduce water temperature
E21
Motor overload
P
Yes
x=6
Sediment in the pump
Call customer services
E23
Short circuit/contact fault
P
Yes
x=6
Motor defect
Call customer services
E25
Contact error
P
Yes
x=6
Module connected incorrectly
Connect module again
Coil interrupted
P
Yes
x=6
Motor defect
Call customer services
E26
Temp.-sensor interrupted
P
Yes
x=6
Motor defect
Call customer services
E27
Speed sensor defect
O
W
Pump running in emergency mode
Call customer services
(solid characteristic) depending in
the fixed set value. Should the
control signal re-appear, the unit
will return to regulator mode after
5 mins.
E30
Excess temperature – module
P
Yes
x=6
Air intake to module heat sink is
Free air intake
blocked
E31
Excess temperature –
P
Yes
x=6
ambient temperature too high
Improve ventilation in room
power component
E36
Module defect
P
x=1
Elektronic components defect in
Call customer services /
pumps with P
1
≥
500 W
change module
E38
Temp.-sensor medium defect
O
W
Module defect (Night-time mode)
Call customer services
Motor defect in pumps with
P
1
< 500 W
E50
Error PLR communication
O
W
Interface, connection defect
After 5 minutes, the unit switches
IF-modules not plugged in
from PLR mode to regulator local
properly, cable defect
mode
E51
non-permissible combination
O
W
different pumps
fourth column means that the error reading has to be
reset manually at the pump.
Fifth column – “Switch off at x errors / 24 hrs”:
x=1:
In the event of a serious error the unit imme-
diately switches off when the error first arises.
x=6:
An error arises. The pump switches off. Once
the error has been rectified, the pump switches
on again. When the same error arises for the
sixth time within the space of 24 hours, the
pump switches off permanently and registers
SSM. Manual reset is necessary.
W:
The error (
W
arning only) appears on the
display but the error LED does not light up.
The pump continues to run. The error can
occur an infinite number of times. The indicated
operating condition should not be ignored for
long periods of time. The cause of the error
must be removed.
