Viessmann Vitoclima 300-S Service Instructions For Contractors page 32

Troubleshooting
Diagnosis
(cont.)
dIA Fault diag- oxx
* axx
nosis 1
bxx
cxx
dxx
StP Setup de- idU
termining
the operat-
A P Internal device A determines the operating mode
ing mode
b P
C P Internal device C determines the operating mode
d P
FrC
PAr Parameter CHg Change parameters
change
rSt
Stt IdU
* 2
Status
*1
"xx" represents the fault code.
*2
FLt is displayed in case of a sensor fault. dIS is displayed if a sensor has been disabled.
32
External unit
Internal device A
Internal device B
Internal device C
Internal device D
The internal device started first determines the op-
erating mode (standard)
Internal device B determines the operating mode
Internal device D determines the operating mode
Switch "Default operation" determines the operating
mode
Reset to factory settings
Internal de- ICt Tempera-
vice ture at the
heat ex-
changer of
the internal
device
oPr Operating
mode
Ld Last
A Internal de-
vice A
b Internal de-
vice B
C Internal de-
vice C
d Internal de-
vice D
A Internal de-
vice A
b Internal de-
vice B
C Internal de-
vice C
d Internal de-
vice D
A Internal de-
vice A
b Internal de-
vice B
C Internal de-
vice C
d Internal de-
vice D