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Symptom
No hot water, heating stays cold
Domestic hot water functioning
correctly; heating does not start
up
No hot water, heating function-
ing correctly
0020258609_00 ecoVIT exclusiv Operating instructions
Possible cause
Fault during the ignition pro-
cess. F.28 "No ignition during
start-up" or F.29 "Flame goes
out during operation" appears
in the display. The
symbol is
shown in the display.
Fault in the air/flue gas route
or condensate discharge. F.32
"Speed deviation too great" or
F.50 "Failure Siphon switch"
appears in the display. The
and
symbols are shown in the
display.
Control settings not correct
The rotary knob for the heating
flow temperature is not at the
clockwise end stop when the
control is connected
Heating flow temperature set
incorrectly with no control con-
nected
Control settings not correct
The rotary knob for the cylinder
temperature is not at the clock-
wise end stop when the control
is connected
The cylinder temperature is
set incorrectly with no control
connected
Measure
1.
Check whether the gas stopcock is open.
2.
If the gas stopcock is closed, open the gas stopcock with the
agreement of an installation company.
3.
Press and hold the reset button for one second to cancel
ignition switch-off after three unsuccessful attempts if the
burner has so far failed to ignite.
4.
If the product does not start up after three reset attempts,
contact an approved heating specialist company.
1.
Contact an approved heating specialist company.
1.
Compare the control settings with the specifications in the
control's operating instructions.
2.
Correct the settings in accordance with the operating instruc-
tions for the control.
3.
Contact an approved heating specialist company if you en-
counter problems when configuring the settings.
1.
Check the setting of the rotary knob for the heating flow tem-
perature when the control is connected.
2.
Turn the rotary knob for the heating flow temperature as far
as it will go clockwise.
1.
Check the heating flow temperature setting.
2.
Set the rotary knob for the heating flow temperature to the
required heating flow temperature with no control connected.
1.
Compare the control settings with the specifications in the
control's operating instructions; the rotary knob for the cylin-
der temperature is at the clockwise end stop when the con-
trol is connected.
2.
Correct the settings in accordance with the operating instruc-
tions for the control.
3.
Contact an approved heating specialist company if you en-
counter problems when configuring the settings.
1.
Check the setting for the rotary knob for the cylinder temper-
ature when the control is connected.
2.
Set the rotary knob for the cylinder temperature as far as it
will go clockwise when the control is connected.
1.
Check the cylinder temperature setting.
2.
Set the rotary knob for the cylinder temperature to the re-
quired cylinder temperature with no control connected.
Appendix
15
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