Service Messages - Viessmann Vitovalor PT2 Installation And Service Instructions For Contractors

Service messages

Message, con- System characteristics
trol unit / fuel
cell
P.1
—
P.4
—
P.5/05F0 No power generation
P.6/07F0 No power generation
P.7/09F0 No power generation
P.8
—
P.14
—
P.15
—
P.19
—
P.20
—
P.22
—
P.23
—
P.24
—
P.25
—
P.26
—
P.27
—
P.29
—
Cause
Interval until the next serv-
ice
System pressure too low
5-yearly fuel cell service
required
Repairs required
Decommissioning re-
quired (after 20 years of
operation)
Interval in burner hours
gas condensing module
until the next service
Fuel cell maintenance re-
quired in less than
45 days
Fuel cell maintenance re-
quired in less than
1 month
Fuel cell overhaul required
in less than 3 month
Fuel cell overhaul required
in less than 2 month
Fuel cell overhaul required
in less than 1 month
6 months until fuel cell de-
commissioning
5 months until fuel cell de-
commissioning
4 months until fuel cell de-
commissioning
3 months until fuel cell de-
commissioning
2 months until fuel cell de-
commissioning
1 month until fuel cell de-
commissioning
Troubleshooting
Measures
Perform maintenance.
Top up heating water
Carry out the 5-yearly service.
Note
The message can only be cleared
on the programming unit of the fuel
cell module.
Carry out repairs.
Note
The message can only be cleared
on the programming unit of the fuel
cell module.
Carry out decommissioning.
Perform maintenance.
Perform maintenance.
Perform maintenance.
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