Instructions

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EN
20. Software reset (restore factory settings).
If necessary, you can
erase all of your settings
and return the Troll
Comfort DuoFern
system to its original
factory settings.
1.
Simultaneously press
and hold all four keys
for 5 seconds, until all of
the icons are shown on
the display.
2.
Next, the device
type (Cd = Comfort
DuoFern) and software
version will be displayed
for a few seconds.
All settings will be
erased and reset to the
default factory settings.
Carry out the settings
again as specied from
page 32 onwards (instal-
lation wizard).
+
approx.
5 sec.