Download Viessmann Vitodens 200-W Combi Operating instructions

Troubleshooting
Fault codes (cont.)
Const.
Weath.- System charcomp.
acteristics
Cause
Measures
X
X
Control mode
Replace solar control module or
Vitosolic
X
Solar control
module or
Vitosolic
faulty
Programming
unit faulty
Control mode
as per delivered condition
Burner blocked Short circuit,
flue gas temperature sensor
Control mode
Communicaas per delivtion error,
ered condition programming
unit
Control mode
Internal fault
as per delivered condition
Burner blocked Boiler coding
card faulty
A7
b0
X
X
b1
X
X
b5
X
X
b7
X
X
b8
X
X
bA
X
bb
X
96
Replace programming unit
Check the flue gas
temperature sensor
Check connections
and replace the
programming unit if
required
Replace the control
unit
Plug in boiler coding card or replace
if faulty
Burner blocked Lead break,
Check the flue gas
flue gas tem- temperature senperature sen- sor
sor
Mixer regulates Communica- Check extension
to 20 °C flow
tion error,
kit connections and
temperature.
extension kit code
for heating
circuit 2 (with
mixer)
Mixer regulates Communica- Check extension
to 20 °C flow
tion error,
kit connections and
temperature.
extension kit code
for heating
circuit 3 (with
mixer)
5692 857 GB
Displayed
fault
code
9F