Diagnostics
56
8
Code
Description
Warning (u)
Error (E)
815
Flame controller parameters
error
NA
Contact the TAC.
819
Room temperature probe
needed
Install the room temperature probe
and set P45 = 1.
NA
820
Heat exchanger temperature
probe fault
NA
The reset may be done following one of procedures shown in
Paragraph 6.6.3
If the code persists, shows up again or in case of doubt, contact the
TAC.
821
Room temperature probe fault Contact the TAC.
824
Flue gas temperature probe
fault
NA
The reset may be done following one of procedures shown in
Paragraph 6.6.3
If the code persists, shows up again or in case of doubt, contact the
TAC.
827
Loss of Modbus communi-
cation
Check Modbus connection.
NA
835
Destratification probe fault
Contact the TAC.
836
Blower fault
Reset occurs automatically 20
minutes after the code is gener-
ated.
The reset may be done following one of procedures shown in
Paragraph 6.6.3
If the code persists, shows up again or in case of doubt, contact the
TAC.
838
Internal flame controller error
Reset occurs automatically 10
seconds after the code is gener-
ated.
The reset may be done following one of procedures shown in
Paragraph 6.6.3
If the code persists, shows up again or in case of doubt, contact the
TAC.
841
Parasitic flame lockout
NA
The reset may be done following one of procedures shown in
Paragraph 6.6.3
If the code persists, shows up again or in case of doubt, contact the
TAC.
842
Flame loss
Reset occurs automatically 10
seconds after the code is gener-
ated.
NA
843
Flame controller communica-
tion error
Reset is automatic when the trig-
gering condition ceases.
The reset may be done following one of procedures shown in
Paragraph 6.6.3
If the code persists, shows up again or in case of doubt, contact the
TAC.
880
Incomplete functional param-
eters
Contact the TAC.
80
Invalid configuration param-
eters
Contact the TAC.
81
Corrupt parameter memory
NA
Contact the TAC.
85
Invalid module type configura-
tion parameters
NA
Contact the TAC.
90
Parameter memory fault
NA
Contact the TAC.
91
Electronic board fault: firmware NA
Contact the TAC.
NA: Not Applicable