1.0 Clock does not function, no change in
display, setting impossible.
Start newly with RESET (see 2.4)
1.1 No function at all
Insulating tape was not removed from
the battery case Alkaline cells were not
changed (see 2.2).
1.2 Battery sign is blinking after only a
few days of use
Contact surface in battery case is clog-
ged; usage of wrong or bad alkaline cells
(see 2.2)
1.3 Clock functions, device does not
switch
Permanent temperature, summer pro-
gram, or holiday program activated
(see 4.9 / 4.10 / 4.11)
1.4 Clock functions, deviating temperatu-
re and control
Wrong wall alignment (see 6.3)
1.5 Wrong summer / winter changeover
Check current date and choice of summer
/ winter changeover switching group
(see 3.2 / 4.6)
7.0 Troubleshooting
1.6 Clock functions, setting possible,
constantly 21° C
Cancel switch-on command at the remo-
te control telephone switch (see 5.0)
1.7 Clock functions, setting possible,
constantly 6° C
No heating mode programmed, summer
program is active (see 4.4 / 4.10)
1.8 Desired temperature is not reached
Heating facility capability is too low; con-
trol tolerance frame too large (see 6.2)
1.9 Variation of temperature
Heating facility capability is too high;
control tolerance frame too low (see 6.2).
2.0 No regulation despite correct display
of time and temperature
– Contacts in the upper part of the device
/ base are dirty. Clean carefully with a
cloth and alcohol.
– Wrong relay state. With set
the temperature to 30° C and after that
set with the temperature to
5° C. The relay switch must be audible.
If necessary repeat.
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