Viessmann E00T, Installation And Service Instructions For Contractors

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Message System characteristics Cause Measures
F.92 Function of affected exten-
sion in emergency mode ADIO electronics module
communication error Check connections on ADIO elec-
tronics module and connection to
HMU heat management unit.
F.100 Function of the connected
electronics module in emer-
gency mode Voltage error PlusBus Check the PlusBus connecting ca-
ble.
F.160 Control mode No communication via
CAN BUS to connected
electronics module Check HMU heat management unit
connections and connecting leads.
Reset device.
F.192/02F0 Fuel cell not operating Not filled with distilled wa-
ter Carry out fuel cell module commis-
sioning again.
F.193/02F1 Fuel cell not operating Filling with distilled water
was not confirmed during
commissioning Carry out fuel cell module commis-
sioning again.
F.194/02F2 Fuel cell not operating Draining of distilled water
was not confirmed Drain out distilled water again and
confirm draining.
F.195/12F0 No power generation Combustion control CO
content outside tolerance
range
■
Check gas type setting, correct if
required.
■
Check the balanced flue system
for:
– Flue gas recirculation
– Leaks
■
Ingress of flue gas due to insuffi-
cient clearance from,
for example, the flue system of a
solid fuel boiler
If the fault recurs, notify Viessmann
Technical Service.
Note
Reset the message on the fuel cell
module programming unit.
Then switch the ON/OFF switch of
the fuel cell module OFF for ap-
prox. 10 s and ON again.
Troubleshooting
Message overview
(cont.)
5839343
Diagnosis