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Fault codes
(cont.)
Displayed fault
System characteristics
code
D6
Warning
D7
Warning
D8
Warning
E0
Burner locked out
F7
Burner locked out
F8
Burner locked out
F9
Burner locked out
FA
Burner locked out
FF
Boiler output deviating
Cause
The silo may not be full
enough
Heat exchanger cleaning
limit switch
CAN bus interruption
Jumpers are not inserted
in slots 97 and 98
Heat exchanger cleaning
did not reach limit position
Ash removal screw con-
veyor has gone into re-
verse too often
Grate did not reach limit
position
Proximity switch in pellet
hopper is constantly dirty
Program memory error
Troubleshooting
Measures
Check the silo fill level
Check the heat exchanger clean-
ing limit switch
Checking the fuses
■
Check wiring
■
Check jumpers and insert if neces-
sary
Check the limit switch for heat
■
exchanger cleaning
Check heat exchanger cleaning
■
Check ash removal screw convey-
or and ash box
Acknowledge a fault
■
If fault recurs, check grate
■
Clean grate if necessary
■
Clean proximity switch
Check boiler type in the control unit
125
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