Troubleshooting Fault Messages - Viessmann VITOLIG 300 Service Instructions Manual

Troubleshooting
Fault messages
Fault messages during operation
These fault messages are indicated by codes "FE" or "In".
The boiler returns to operation when the relevant fault has been removed.
Note
After a fault has been removed, press the reset button.
Operating instructions
Display Explanation/Cause/Effect
indication
FE 238 The supply draws no pellets.
The boiler will not start.
FE 239 Automatic pellet supply chan-
geover faulty.
FE 281 Flue gas temperature sensor
faulty.
The flue gas temperature can-
not be displayed.
No effect on the operation.
FE 381 Hopper empty.
The fully automatic pellet sup-
ply is switched off.
The pellet supply has stopped
as it is currently outside the se-
lected enable time.
FE 382 The level switch inside the hop-
per does not switch.
The boiler will not start.
The pellet supply flap does not
close.
The level switch inside the hop-
per is faulty.
22
Remedy
Change to another wand if there
are no pellets near the supply
wand (see operating instruc-
tions).
Check the routing and layout of
the supply hose or the suction
wand.
Check the automatic change-
over.
Check the flue gas temperature
sensor (see page 26).
Start the pellet supply or wait for/
change the enable time.
Open the pellet hopper (see
page 16) and clean the flap; it
must lie flush all around the sup-
ply. The indicator on the level
switch must be brightly lit when
the flap is closed.
Replace the level switch.