instructions

66
Troubleshooting
Caution! There is a risk of explosion if the battery
is not replaced correctly. Replace only with the
same or equivalent type. Never recharge non-
rechargeable batteries. Do not throw the batteries
into a fire. Do not expose batteries to excessive
heat. Do not short-circuit batteries. Doing so will
present a risk of explosion.
Used batteries should not be disposed of with
regular domestic waste! Instead, take them to
your local battery disposal point.
9 Troubleshooting
9.1 Weak batteries
Provided that the voltage value permits it, the radiator
thermostat will remain ready for operation also if the
battery voltage is low. Depending on the particular load,
it may be possible to send transmissions again repeatedly,
once the batteries have been allowed a brief recovery
period.
If the voltage drops too far during transmission, the
empty battery symbol (
Prg
Offset
AUTO
MANU
BOOST
Mo Tu We Th Fr Sa Su
0
6
12
18
24
) and the corresponding error
code will be displayed on the device (see “9.4 Error codes
and flashing sequences” on page 68). In this case,
replace the empty batteries by two new batteries (see “8
Replacing batteries” on page 65).