Viessmann VITOFLEX 300-UF Operating Instructions Manual page 26

What to do if...
"Fault" is displayed
No. Fault message
009 Fault: Repeat heat-up
010 Fault: Light barrier, firebed
011 Fault: Material shortage
012 Fault: Temperature level, hydraul-
ics, push floor
013 Fault: Temperature level, hydraul-
ics, silo cover
014 Fault: Reversal, discharge
015 Fault: Reversal, conveyor device
016 Fault: Motor protection, hydraul-
ics, container X
26
(cont.)
Cause
Fuel is too damp
Oxygen monitoring detects no
combustion
Combustion chamber fill time is
too short, resulting in lack of fuel
at the ignition system
Ignition is faulty
Sight glasses are dirty
Ash deposits in apertures
Light barrier is dirty or faulty
Combustion chamber is too full
Fuel store is empty
Material blockage
Shut-off gate valve sticks
Loss of oil at the hydraulic unit
Pressure switch is incorrectly set
or faulty
Room temperature is too high
Loss of oil at the hydraulic unit
Pressure switch is incorrectly set
or faulty
Room temperature is too high
Motor is overloaded due to block-
age (foreign body)
Bearing damage
Motor is overloaded due to block-
age (foreign body)
Bearing damage
Electrical fault on drive motor
Remedy
Use suitable dry fuel
Check oxygen probe, clean, cali-
brate and replace if necessary
Adjust combustion chamber fill
time
Check ignition, replace if necessa-
ry
Remove and clean both sight
glasses
Remove dust and ash deposits
from the apertures
Clean or replace the light barrier
sensors
Check combustion parameters
and adjust if necessary
Filling the fuel store
Switch OFF mains isolator and re-
move material blockage
Check shut-off gate valve for ease
of operation
Check the fittings, lines and cyl-
■
inders for leaks
Top up the oil
■
Replace pressure switch
■
Readjust setting for changeover
■
pressure at pressure switch
Reduce room temperature
■
Install oil cooler
■
Check the fittings, lines and cyl-
■
inders for leaks
Top up the oil
■
Replace pressure switch
■
Readjust setting for changeover
■
pressure at pressure switch
Reduce room temperature
■
Install oil cooler
■
Remove foreign body
Check for ease of operation
Remove foreign body
Check for ease of operation
Consult a qualified electrician