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3 Operation
Instructions for use VUI 362-7
10
3.7 Turning the boiler OFF
3.7.1 To turn OFF the central heating only (Summer
smode)
• 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 storage vessel 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
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Содержание aquaPLUS VUI 362-7
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