Technical data

5.Error Search and Error Elimination DBW 2010 / 2012 / 2020 / 2022 / 300 / 350
508
5.4.6 The heating device produces light colored dense smoke
5.4.7 The heating device cannot be shut off
NO
YES
Adjust the ignition electrodes
according to the gauge (refer to
section 6).
Does the heating device produce
dense smoke after shut off?
Does the heating device produce
dense smoke for 20 seconds after
shut off?
Does the socket of the magnetic
valve not close?
Were the previous trials to start
unsuccessful?
The check valve of the vaporizer
nozzle leaks. Replace the
vaporizer nozzle (only DBW 2010
with return nozzle)
Is the flow amount of the
vaporizer nozzle too small?
Replace. Does the heating device
still produce dense smoke?
Check the socket of the magnetic
valve. Replace the small parts if
necessary.
Yes
Does the heating device produce
dense smoke while working?
(even if it is only from time to
time)
Does the electrode setting
conform to the gauge? (refer to
section 6)
Replace the vaporizer nozzle.
First the fuel collected in the
combustion chamber must
evaporate. Does the heating
device continue to
p
roduce dense
smoke?
Clean the combustion chamber.
Open the burner and take out the
combustion chamber. Do you see
soot that is collected in the
combustion chamber?
Replace the vaporizer nozzle.
NO
YES
The switch or the program times is
defective. Replace it.
Is there current when the switch
and program timer are closed?
Is there still exhaust gas after shut
off?
Does the heating device work
longer than 180 seconds after the
shut off (90 seconds with the
control device 1563/64)?
Does the regulation thermostat
open up when the threshold
value is reached?
The control device is defective.
Replace it.
The regulation thermostat is
defective. Replace it (except the
control device 1563/64).
Is there no 8+9 voltage in the
magnetic valve?
Does the magnetic valve close?
The control device is defective.
Replace it.
The magnetic valve is defective.
Replace it.