TERMA SKT 1 Gebrauchsanweisung Seite 96

Anti-freeze mode
In case the device is off (switched off with button ) but remains con-
nected to the mains and the ambient temperature falls below 6°C, the
device will switch itself on to prevent heating agent in a radiator from
freezing. An 'F' letter will blink on the display unit until the anti-freeze
mode finishes, which is when the temperature rises above 6°C.
FIL-PILOTE INTERFACE
Selected versions of SKT-4 are equipped with a FIL PILOTE interface
which enables remote heating control through an external control-
ler which conforms with FIL PILOTE standards. SKT-4 reacts to all
6 commands:
Signal FP Command
FP-CONFORT
FP-ECO
FP-AF
FP-STOP
FP-ECO1
3 s
300 s
User Manual — Electric heating elements of the SKT series
96
TROUBLESHOOTING
Problem
Device is connected
to electicity, no diodes
are on, heating element
does not heat
Reaction of the
Controller
Heating element heats
although the device
Heating in accordance
is off
with current setting
Heating element does
Reduction of setting by
not heat, but the
3°C (or 3 levels in heat
output regulation mode)
diodes are working
properly
No heating, anti-freeze
function is active (AF
Heating element does
code shows on the
not heat, both diodes
display panel)
flashing alternately
Heating mode and
anti-freeze functions are
both off (OF code shows
on the display panel)
Reduction of setting by
1°C (or 1 level in heat
If the problem presists, please contact your local Distributor.
output regulation mode)
FP-ECO2
7 s
300 s
Possible cause
Device is not turned on
Problem with connec-
tion or power supply
Possible controller
damage
Possible controller
or heating element
damage
Possibly incorrect
heating element – con-
troller installation
Reduction of setting by
2°C (or 2 levels in heat
output regulation mode)
Problem solution
Turn the device on with
the button
Check the connection
of the power supply
wire. Check that the
voltage is correct
Disconnect the device
completely from the
electricity source and
wait until it cools down
before switching it
back on
Check if the controller
has been correctly
connected with the
heating element; the
case of the controller
should completely
cover the head of the
heating element