Technical data

DBW 2010 / 2012 / 2020 / 2022 / 300 / 350 5.Error Search and Error Elimination
507
5.4.5 The heating device produces soot (dense black smoke comes out)
YES
NO
Clean according to the
instructions.
Does low or excessive
pressure occur at the entry
of the combustion air
(during the drive too)?
Can the combustion
values that are permitted
be set? (Refer to section 4)
The distance between the
fan wheel and body is too
large (for DBW 2010/12) or
the engine revolution is too
low (refer to section 6)
Replace the vaporizer
nozzle
Does the heating device
continue to produce soot
after the setting?
Is the combustion air
suction pipe or the
suction clamping sleeve
dirty?
Are the gas paths in the
heat exchanger excessively
dirty?
Is the screw cap (at DBW
2010) defective? Does the
burner protection cap /
head leak?
The revolution of the
engine is too low (refer to
section 6).
Clean it. Check the
assembly if necessary
8refer to Section 8).
Is there a narrowing or a
node in the fuel return line
or is there a leak in the
suction line or is it
heated? (Are there any
bubbles?)
Does the heating device
produce soot only at the
first start?
Has the air setting
changed?
Is the correct fuel used
according to the table in the
manual?
Pay attention to the
warnings in the manual.
Is the voltage at the
engine under load lower
than 10 V or 20 V?
Check the pressure of the
fuel pump (refer to section
6). Is the pump pressure
too high?
The flow amount of the
vaporizer nozzle has been
increased as a result of the
increase of the fuel
pressure.
Recharge the batteries;
corrosion on the electric
cables or the cables are
too small; the engine
defective.
Does the vaporizer nozzle
spray correctly?
Does the valve socket of
the magnetic valve leak?
(the socket is damaged,
the hook is squeezed)
Clean or replace the
vaporizer nozzle.
Check the valve socket.
Replace the small parts of
the magnetic valve if
necessary.
Does the valve socket of
the magnetic valve leak?
(The socket is damaged,
the hook is squeezed.
No
No
No
No
Does the valve
socket of the
magnetic valve leak?
(The socket is
damaged, the hook
is squeezed.