Repairs - Viessmann Vitotronic 200 KW2 Operating Instructions Manual

Troubleshooting
What to do if ...
... mixer motor installed:
the boiler is operating,
but the heating circuit
stays cold
Care, inspection and maintenance
Inspection and maintenance
Inspection and maintenance of your
heating system is prescribed by the
Energy Savings Order and DIN 4755,
DIN 4756, DIN 1988 8 or local
regulations.
Regular servicing of the heating
system will ensure trouble-free,
energy-efficient and environmentally
friendly heating. We strongly
recommend you take out an
inspection and maintenance contract
with your local heating contractor.
(cont.)
Cause
Mixer motor faulty
What to do if ... /Repairs
Remedy
Unlock the motor
lever 1 and manually
operate the mixer
lever 2. Notify your
local heating contractor.
Boiler
All boilers have to be cleaned at
certain intervals because flue gas
temperature and energy losses
increase with a rising level of
contamination.
You can monitor the flue gas
temperature with the flue gas
temperature sensor (available as
accessory). Monitoring the flue gas
temperature can bring incorrect
burner settings and the level of
boiler contamination to your
attention.
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