There Is No Hot Water; Î Flashes On The Display - Viessmann VITOTROL 100 Operating Instructions For The System User

There is no hot water

Cause
The Vitotrol 100 is incorrectly set up.
The wireless connection to the boiler
control unit is faulty.
Note
For further causes, see the boiler oper-
ating instructions.
Î flashes on the display
Cause
The batteries are spent.
Remedy
Check the settings and correct if re-
quired:
■ Starting DHW heating (see page 20)
■ Program (see page 22)
■ Operating mode (see page 20)
■ Time (see page 24)
Change the address code (see
page 31).
Remedy
Change the batteries (see next chapter).
The Vitotrol 100 has a power reserve of
3 min. If you replace the batteries within
this time, all settings will be retained. If
the power reserve has been exceeded,
carry out a reset (see next chapter).
Note
If the batteries are not changed, the dis-
play switches off.
Central heating and DHW heating are
carried out in line with the settings on
the boiler control unit.
What to do if...
29