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3 Operation
Instructions for use aquaPLUS
10
3.7 Turning the boiler OFF
3.7.1 To turn OFF the central heating only (Summer
mode)
• Turn the maximum radiator temperature control knob
used to control the heating supply temperature (1) all
the way to the left.
Note!
You can switch off the heating operation in
summer, for example, but the boiler will continue
to provide domestic hot water whenever a hot
water tap is opened.
Fig. 3.13: Setting the summer operating mode
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Fig. 3.12: Reset
3.6.1 Faults in the hot water system
To protect the
power store
feed pump, the appliance is
equipped with dry-running protection. This prevents
operation of the feed pump if an insufficient quantity of
water is available in the appliance. If dry-running
protection is activated, reset the appliance as follows:
• Press the "Clear fault" button (see 2, illustration 3.12)
and hold it down for approx. 1 sec. or, alternatively,
switch the appliance main switch "OFF" and "ON"
again.
If the boiler still shuts off after a third attempt, please
consult your installer or Vaillant Service Solutions.
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STOP
max. 3 x
83 46 41_10_GB_04/2003 11.04.2003 9:11 Uhr Seite 10
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