21
Troubleshooting
EN
Fuel oil filters
Problem
Possible reason
Repair
Oil cannot be sucked in
or steady flow keeps
being interrupted
Small leaks at the screw
connections between
the withdrawal fitting at
the tank and the burner
allow air to get into the
suction line. This is also
the case during idle
times until the vacuum
no longer exists. This
generates an air cush-
ion in the suction line
Use cylindrical screwed
pipe connections at the
housing and seal them
with flat copper gaskets
(air-tight)
Use a stiffener in the
case of soft or semi-soft
copper pipes
Check all sealing sur-
faces for damage
Close the shut-off valve
at the withdrawal fitting
and perform a vacuum
test (at least 0.6 bar) at
the flow connection of
the oil vent
Burner pump does not
generate a sufficient
vacuum
Perform a suction test at
the pump. The pump
must generate a pres-
sure of at least -0.4 bar
Other malfunctions
-
Contact the AFRISO
service hotline
Summary of Contents for 20281
Page 7: ...7 Produktbeschreibung DE Heizölfilter Abbildung 2 Typ R 500 Abbildung 3 Typ Z 500 Z 500 ...
Page 17: ...17 Wartung DE Heizölfilter 8 2 Filtereinsatz tauschen 8 2 1 Filtereinsatz ausbauen B C ...
Page 18: ...18 Wartung DE Heizölfilter ...
Page 19: ...19 Wartung DE Heizölfilter 8 2 2 Filtereinsatz einbauen ...
Page 31: ...7 Product description EN Fuel oil filters Fig 2 Type R 500 Fig 3 Type Z 500 Z 500 ...
Page 42: ...18 Maintenance EN Fuel oil filters ...
Page 43: ...19 Maintenance EN Fuel oil filters 8 2 2 Mounting the filter insert ...
Page 55: ...7 Description du produit FR Filtre fuel Figure 2 Type R 500 Figure 3 Type Z 500 Z 500 ...
Page 66: ...18 Maintenance FR Filtre fuel ...
Page 67: ...19 Maintenance FR Filtre fuel 8 2 2 Montage d élément filtrant ...