TERMA KTX 3 - KTX 1 Operation and Troubleshooting; KTX 1 Problem Solving Guide


Heang element unit heats the radiator that it is installed in. The device has
a user-friendly temperature regulaon system allowing the device to work with only a
half or full of its heang output.
Buon is used to turn the device on / o.
When turned o and then back on again, the device will heat with the same heang
output as before it was turned o.
Buon is used to set the ECONOMICAL mode – this is indicated by a yellow diode
in the top le corner (the device will start operang by turning itself on and o every 7
seconds).
Buon is used to set the COMFORT mode (the device will operate with its full
output connuously) – this is indicated by a red diode in the boom right corner.
Built-in temperature sensor protects the device from overheang, liming the tempera-
ture of the radiator to maximum of 60°C.
Construcon of the heang element unit as well as physical characteriscs of the heang
agent cause that the boom pipes (especially the two at the very boom of the radiator)
may have a lower temperature than the remaining parts of the radiator – this is a normal
phenomenon.

Problem  
Device is connected, no
diodes are on, heang ele-
ment does not heat.
Device is not turned on Turn the device using
buon
Connecon problem Check the connecon,
plug and the socket.
Heang element does not
heat, diodes are ashing
alternately.
Device signals emergency,
temperature sensor is
damaged.
Turn the device o, wait
for the radiator to cool
down and turn it back on.
Heang element does
not heat, diodes indicate
correct operaon.
Thermal fuse is burnt
or heang element is
damaged.
Turn the device o, wait
for the radiator to cool
down and turn it back on.
Heang element heats
although the device has
been turned o with the
buon.
Electronics damage. Disconnect the device
completely from the
installaon, wait for the
radiator to cool down and
turn it back on.
