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Viessmann Vitotronic 200 - CO1E Manual

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36
Cause Remedy
The heating system is switched off. ■Turn on the ON/OFF switch (see page 34).
■Switch ON the mains isolator if installed (outside the
boiler room).
■Set the MCB in the power distribution board (main do-
mestic MCB).
■Control unit incorrectly adjusted.
■The remote control (if installed) is set incorrectly.
Separate operating instructions
Central heating must be set.
Check the settings and correct if required:
■Operating program (see page 15)
■Room temperature (see page 20)
■Time (see page 27)
■Time program, central heating (see page 21)
■Heating curve (see page 21)
The DHW cylinder is being heated. Wait until the DHW cylinder has been heated up.
Reduce the DHW draw-off rate or temporarily reduce
the DHW temperature as required.
No fuel. With oil or LPG:
Check the fuel reserves and re-order if required.
With natural gas:
Open the gas shut-off valve. If necessary, check with
your gas supply utility.
"Fault" is displayed. Check what type of fault it is. Acknowledge the fault
(see page 31). If necessary, notify your contractor.
"Burner fault" is displayed. ■Vitotronic 200, type CO1E:
Press the burner reset button.
See separate boiler or burner instructions.
■Vitotronic 200, type CO1I:
Follow the instructions on the display: See page 32.
Contact your contractor if the burner still fails to start.
Danger
If faults are not rectified, they can have life
threatening consequences.
Do not acknowledge fault messages several
times in quick succession. Notify your contractor
if a fault recurs. Your contractor will be able to
analyse the cause and rectify the fault.
"Screed drying" is activated. No action required.
The set operating program will be enabled once the
screed drying time has elapsed.
The mixer motor is faulty. Notify your heating contractor.
"External hook-up" enabled. No action required.
The operating program set at the control unit was e.g.
changed over via an externally connected button.
Example: In a school, heating demand exists outside of
school times, e.g. for a parents’ evening.
This function cannot be influenced via the control unit.
Once the external changeover no longer applies, the
set operating program becomes active again.
"External program" activated. The operating program set at the control unit has been
changed by another control device.
You can change the operating program on the Vitotron-
ic control unit.
What to do if...
Rooms are too cold
5863724
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