Viessmann Solar-Divicon PS10 - LED on the HE circulation pump

15
LED Meaning Cause Remedy
Illuminated green Circulation pump in
operation
— —
Flashes green in
short intervals
Circulation pump in
standby
— —
Fault indications
■ Flashes red and
green alternately
Circulation pump is
ready for operation
but not running.
Note
The circulation
pump starts auto-
matically after the
cause of the fault
has been re-
moved.
■ Undervoltage
(< 160 V~)
■ Overvoltage
(> 253 V~)
Check the power
supply. (195 V~ < U
< 253 V~)
Motor temperature
too high
Check ambient and
heat transfer medi-
um temperatures.
■ Flashes red Circulation pump
switched off
(blocked)
Circulation pump
does not start auto-
matically.
Replace circulation
pump (see
page 11)
■ LED off — No operating volt-
age.
Check connecting
cable.
LED faulty Check whether the
circulation pump is
running.
PCB faulty Replace the circula-
tion pump (see
page 11).
LED on the HE circulation pump
5773 841 GB