
Fault code
in the dis-
play
Const.
Weat-
h.
comp.
System
character-
istics
Cause
Remedy
FE
X
X
Burner
blocked
Strong interference
(EMC) field nearby;
alternatively boiler
coding card or
main PCB faulty
Remove EMC
interference.
If the equip-
ment will not
restart, check
the boiler
coding card
and replace,
or replace the
control unit.
FF
X
X
Burner
blocked
Internal error
Remove EMC
interference.
If the equip-
ment will not
restart, check
the boiler
coding card
and replace,
or replace the
control unit.
Checking and acknowledging faults
(cont.)
83
Troubleshooting
56
92
548
GB
Summary of Contents for VITODENS 333
Page 114: ...Parts lists cont 114 Parts lists 5692 548 GB ...
Page 115: ...Parts lists cont 115 Parts lists 5692 548 GB ...
Page 116: ...Parts lists cont 116 Parts lists 5692 548 GB ...
Page 117: ...Parts lists cont 117 Parts lists 5692 548 GB ...
Page 118: ...Parts lists cont 118 Parts lists 5692 548 GB ...
Page 119: ...Parts lists cont 119 Parts lists 5692 548 GB ...
Page 131: ...131 5692 548 GB ...