Î Flashes On The Display; Changing The Batteries - Viessmann VITOTROL 100 Operating Instructions For The System User

What to do if...
There is no hot water
Note
For further causes, see the boiler oper-
ating instructions.
Î flashes on the display
Cause
The batteries are spent.

Changing the batteries

Disposal
Batteries/rechargeable batteries should
not be disposed of in domestic waste.
Always dispose of spent batteries/
rechargeable batteries via an authorised
collection site.
28
(cont.)
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. After
the power reserve has been exceeded,
carry out a reset (see next chapter).
Note
If the batteries are not changed in time,
the display switches off.
Central heating and DHW heating are
carried out in line with the settings on the
boiler control unit.
■ Use only alkaline batteries, 1.5 V
Mignon alkaline cells, type LR6/AA
that do not contain noxious substan-
ces.
■ Never use rechargeable batteries.
■ Replace both batteries every 18
months.