Viessmann E00T, Инструкции по установке и обслуживанию для подрядчиков

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Message System characteristics Cause Measures
F.249/67F9 No power generation Air in the distilled water
circuit Carry out fuel cell module commis-
sioning again.
If the fault recurs, notify Viessmann
Technical Service.
Note
The message can only be cleared
on the programming unit of the fuel
cell module.
F.294/9BF0 No power generation Blockage in the flue sys-
tem Check flue system.
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.
F.296/A8F0 No power generation Gas pressure too low
Gas supply interrupted Check the gas supply.
F.297/A9F0 No power generation Gas pressure too high Check the gas supply.
F.299 Wrong time Real-time clock fault Set the time.
Check battery in HMU heat man-
agement unit.
F.303/C2F0 No power generation Fault, stack voltage 1 (fuel
cell)
■
Check the balanced flue system
for:
– Flue gas recirculation
– Leaks
■
Check ventilation air supply for:
– Ingress of flue gas due to insuf-
ficient clearance from,
for example, the flue system of
a solid fuel boiler
– Outgassing/contamination in
the air supply system (e.g. sili-
cones, oils, paints, detergents,
deposits, etc.)
If the fault recurs, contact
Viessmann Technical Service.
Note
The fault message can only be
cleared on the programming unit of
the fuel cell module.
Troubleshooting
Message overview
(cont.)
5839343
Diagnosis