14
Possible Problems
System Characteristics Cause
Remedy
Rooms are too cold
The Vitotrol 100 is set incorrectly
Check the settings and correct if
required:
• Time program for heating mode
(see page 6)
• Room Temperature (see page 9)
• Time (see page 12)
Rooms are too cold
The wireless connection to the
boiler control unit is interrupted
(only for Vitotrol 100, type UTDB-RF
with wireless connection).
At the receiver unit , the display
flashes
Change the address code (see page
15)
Rooms are too hot
The Vitotrol 100 is incorrectly set
Check the settings and correct if
required:
• Time program (see page 6)
• Room temperature (see page 9)
• Time (see page 12)
flashes on the display The batteries are spent
Change the batteries (see below)
Faults with Controller
Replacing the Batteries
• Use only alkaline batteries 1.5V
• Never use rechargeable batteries
• Replace
both
batteries every 18 months
The Vitotrol 100 has a power reserve of 3
minutes. If you replace the batteries within this
time, all set data is retained. If power reserve
has been exceeded, a reset will need to be
carried out (see below for more information).
Reset
Press the reset button with a suitable
instrument. After a reset, the language, time and
date will need to be set again.
Possible Problems
