27
Note
For further causes, see the boiler oper-
ating instructions.
Î
flashes in the display
Cause Remedy
The batteries are spent. 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 set details will be retained.
After the power reserve has been excee-
ded, carry out a reset (see next chap-
ter).
Note
If the batteries are not changed, the dis-
play switches off.
Central heating and DHW heating are
carried out according to the settings on
the boiler control unit.
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.
■ 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.
What to do if...
There is no hot water
(cont.)
5592 620 GB
