29
Troubleshooting
EN
FloCo-Top-2
8
Troubleshooting
Any malfunctions that cannot be removed by means of the measures
described in this chapter may only be repaired by the manufacturer.
Problem
Possible reason
Repair
Heavy oil foam in the
float chamber due to
excessive amounts of
air sucked in (in excess
of the possible separa-
tion capacity of > 4 l/h)
Suction line not tight
Perform a tightness test
of the suction line (vac-
uum test or pressure
test)
Screw connections at
the suction hose not
tight
Seal the screw connec-
tions
Initial commissioning
without separate suction
pump
Use a suction pump
Suction line rating too
great
Observe the flow rate
0.2 - 0.5 m/s
(DIN 4755-2)
Burner switches off at
irregular intervals due to
malfunctions
Air accumulations in the
suction line because
pipe cross section is too
great. When the anti-
siphon valve opens after
the pre-aeration time of
the burner, a greater
bubble may pass
through which causes
the burner to switch off
Properly rate the suction
line (see chapter "Deter-
mining the suction line
length")
