8
4 Operation
Instructions for use turboMAX plus, thermoCOMPACT
When a hot water tap (turboMAX plus only) or the central
heating system requires heat, the boiler automatically
ignites and starts to operate. If the automatic ignition is
not successful within 10 seconds, then the boiler does
not go into operation and switches to „Lock out“.
This is indicated visually by the red indicator light (1) and
the displaying of fault code „F.28“ or „F.29“ (flame extin-
guished during operation). A new attempt to ignite the
flame can then only be performed after pressing the
„Reset“ button.
• Press the „Reset“ button (2) and hold for approx. 1
second.
If the boiler still shuts off after a third attempt,
then please consult your installer or Vaillant
Service Solutions.
The boiler also switches to „Fault“ when there is not
enough water in the system. This fault is indicated by
fault code „F 22“. The boiler can only be placed back in
operation after the heating system has been properly
refilled with water.
In the unlikely event of any other fault developing, which
prevents the boiler from operating, the display will also
show other fault codes. If a fault code is displayed please
contact your installer or Vaillant Service Solutions.
Note:
If contacting Vaillant Service Solutions please
remember to quote the fault code, as this will
help to pinpoint the fault.
Turning the boiler OFF
(turboMAX plus only)
To turn OFF the central heating only (Summer mode)
Fig. B.12: Setting the summer operating mode
• Turn the maximum radiator temperature control knob
used to control the heating supply temperature (1) all
the way to the left.
Hint!
You can switch off the heating operation in sum-
mer, for example, but the boiler will
continue to provide domestic hot water
whenever a hot water tap is opened.
To turn OFF central heating and hot water for short
periods of time
Fig. B.13: Shutting down the unit completely
• Turn the main ON/OFF control (2) to the „0“ position.
If you want to turn the turboMAX plus boiler
OFF for a longer period of time (e.g. holidays),
and there is no danger of frost, then you should
also turn off the gas supply, the cold water ser-
vice valve and the electrical supply. Please note
the frost protection hints in this regard .
VRC-VC
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C
o
C
o
C
o
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0
2
VRC-VC
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o
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I
C
o
C
o
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