PROBLEM SOLVING
Problem
Possible cause
Solution
Device is plugged in, LCD
display is empty.
Problem with the con-
nection.
Check the power wire
connection, plug and the
socket.
Device does not heat, E7
or E9 is flashing on the
display panel.
Device signals emergency,
temperature sensor has
been damaged.
Disconnect the device
completely and wait until
the radiator cools down,
after that reconnect the
device.
Controller has been incor-
rectly installed on the
heating element.
Check if the heating ele-
ment head is hidden com-
pletely. Turn the screw
off, press the controller
towards the radiator and
twist the screw again.
Device does not heat, E6 is
flashing on the LCD panel.
Device signals emergency,
overheating.
Check if the radiator is
properly filled with the
heating agent.
Device is heating although
it has been turned off with
the button.
Electronics damage.
Disconnect the device
completely and wait until
the radiator cools down,
after that reconnect the
device.
If the problem persists, please contact your local distributor.
KTX 4
button – turns the device on / off
button – TIMER programming
Buttons and – temperature regulation or modification of TIMER settings – numeric
sign
icon – HEATING indicator
icon – icon indicating connection to a transmitter
Heating element unit heats the radiator that it is installed in and precisely controls its
temperature at the same time. Buttons and are used to regulate temperature whilst
the icon indicates that the radiator is being preheated.
Turning the device on does not mean that it uses the same maximum power for the
whole time it is on. On turning the device on, it operates with the nominal power for
a short period of time in order to heat up the radiator to the set temperature. After
that it turns itself on and off periodically, using only as much energy as it is required
to maintain the set temperature of the radiator for current external conditions (see:
Actual working time meter
).
Construction of the heating element unit as well as physical characteristics of the heating
agent cause that the bottom pipes (especially the two at the very bottom of the radiator)
may have a lower temperature than the remaining parts of the radiator – this is a normal
phenomenon.
KTX 4 controller installed on the SPLIT heating element is the basic configuration of this
type of heating element unit which allows use of all the basic features of the device (see:
Local mode operation
).
KTX 4 controller can also cooperate with an external wall-mounted transmitter (ie. DT-IR
type), which adds additional features to the basic set (see:
Remote mode operation
).
