8.4 WARNING LIST
MUTUAL WARNINGS (WOOD / WOOD PELLETS):
Factory settings loaded.
WARNING
NAME
DESCRIPTION
Appear always when fan decrease rotating speed or if
turning ”OFF“ itself because of high flue gas temperature.
The boiler operates without using the lambda probe.
The boiler operates without using the flue gas sensor.
It can occur only if the configuration contain ”Protection
valve”. The boiler will resume normal work (the cause
should be removed because boiler condensation will occur
and flue passes will clog up). The problem may be with 3-
way mixing valve (protection valve) / motor drive / sensor of
return flow temperature.
The temperature accumulation (buffer) tank is lower than
the desired which allow pump work.
W1
Factory setting loaded
W3
W5
W6
W10
W12
Fan protection
Intervention work
(Lambda sensor)
Intervention work
(Flue gas sensor)
Low return temperature
Low buffer temperature
WOOD FIRING WARNINGS:
WARNING
NAME
DESCRIPTION
Boiler working (wood side), upper boiler door is opened and
flue gas temperature is too high. It’s necessary to close
upper boiler door.
The boiler operates without using the RPM (rotates per
minute) sensor.
Bad ignition, too damp wood, non-closed middle or lower
door, non-closed side covers for cleaning or rear top cover
for cleaning), impassable flue pipe from the fan to the
chimney, blocked passes for the primary or secondary air
between the upper and middle boiler door. Check and close
the insufficiently sealed openings and if necessary fill and
start the boiler again, if you do not help these actions, call an
authorized service to check primary / secondary openings.
Ww2
Ww7
Ww8
Flue gas temperature
high. Close the upper
door!
Intervention work
(RPM sensor)
Ignition error
The boiler operates without using the firebox sensor.
W4
Intervention work
(Firebox sensor)
Warning list
Technical instructions CONTROL UNIT
BioTec Plus
45