Valtis Ogrevanje d.o.o.
Instructions for installers and maintenance workers
POSSIBLE ERRORS AND HOW TO SOLVE THEM
INACTIVE SCREEN
NO NTC
NO TCI
NO STB
No electrical power
Blown fuse in the electronics
Check the connection of the electrical power
Change the fuse in the electronics
Displayed when the regulation has not detected a
water sensor
Check the connection where the sensor is connected
Physically check the sensor, the suitability of the
insulation
Change the sensor
Displayed when the regulation has not detected a
fume sensor
Check the connection where the sensor is connected
Physically check the sensor, the suitability of the
insulation
Change the sensor
Displayed when the capillary thermal fuse is
activated
The thermal protection is activated when the water in
the boiler overheats above 95 degrees and cannot be
deactivated until the temperature drops below this
value
Check the operation of the circulation pump
Check the operation of the mixing valve
Too much fuel in the firebox
