Rooms Are Too Hot - Viessmann VITODENS Operating Instructions Manual

What to do if...
Rooms are too cold
Cause
Mixer motor faulty

Rooms are too hot

Cause
Control unit or remote control incor-
rectly adjusted
Control unit or outside temperature
sensor faulty:
"Fault" is displayed and the red fault
indicator flashes
38
(cont.)
Remedy
Unhook motor lever A and manually
set mixer lever B. Notify your local
heating contractor.
Remedy
Check settings and correct, if required:
& Room temperature (see page 18)
& Time (see page 31)
& Time program (see page 19)
Scan the type of fault (see page 35)
and notify your local heating contractor