4
The solar thermal system does not start.............................................................. 11
There is no DHW available................................................................................... 11
The display is dark............................................................................................... 12
The display illumination flashes............................................................................ 12
Calling up faults.................................................................................................... 12
Inspection and maintenance................................................................................ 13
■ DHW cylinder (if installed)................................................................................. 13
■ Safety valve (DHW cylinder)............................................................................. 13
■ Potable water filter (if installed)......................................................................... 13
Damaged cables / lines........................................................................................ 14
Index
Index
5608 437 GB