Sapho KTX-C User Manual page 69

Problem solving
Problem
Device is plugged in, LCD display is empty.
Device does not heat, E9 is flashing on the
display panel.
Device does not heat, E7 is flashing on the
display panel.
Radiator is cold, E6 is flashing on the dis-
play panel.
Radiator is cold, no malfunction signal displayed. The thermal fuse is damaged.
Device is heating although it has been turned
off with the button.
If the problem persists, please contact your local distributor.
EN
Possible cause
Problem with the connection.
Device signals malfunction, temperature sen-
sor has been damaged.
Controller has been incorrectly installed on
the heating element.
Device signals malfunction, overheating.
Electronics damage.
Solution
Check the power wire connection, plug and the
socket.
Disconnect the device from its electric supply and
wait until the radiator cools down, after that re-
connect the device.
Check if the heating element head is hidden com-
pletely. Turn the screw off, press the controller to-
wards the radiator and twist the screw again.
Check and confirm that the heating element's
output does not exceed the recommended output
of your radiator. Check and reduce the water tem-
perature in the central heating system-must not
exceed 82°. In electric-only version check if the
radiator is properly filled with the heating agent.
Disconnect the device completely and reconnect it.
Disconnect the device from its electric supply
and wait until the radiator cools down, after that
reconnect the device.
User Manual — Electric Heating Element
69