12
Cause
Remedy
Power failure
The solar control unit automatically re-
turns to operation once the power supply
has been restored.
The power distribution MCB (main do-
mestic MCB) has responded (no mains
voltage is present).
Check the MCB and inform your heating
contractor if necessary.
The display illumination flashes
Cause
Remedy
Solar thermal system fault.
Call up the fault (see following chapter)
and contact your local heating contractor
if necessary.
Calling up faults
If any faults have occurred in your solar
thermal system, the display illumination
flashes and
"Fault"
appears on the
standard display.
30.04.2009
Tcol
Tcylb
10:59
47.7 °C
35.4 °C
Fault
Press the following keys:
1.
for the
"Main menu"
.
2.
for
"Messages"
.
3. OK
to confirm.
4.
/
for causes of the current fault.
5.
Make a note of the cause of the fault.
This enables the heating contractor to
be better prepared for the service call
and may save additional travelling
costs.
6.
until the
"Main menu"
appears.
Example of a fault message
Lead break, cylinder temperature sen-
sor
Messages:
Cyl set
! Interruption
>Sensor 2<
What to do if...
The display is dark
5608 437 GB
