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Diagnosis of cause of fault
After lock-out, the red fault signal lamp remains steady on.
In that condition, the visual diagnosis of the cause of fault according to the
error code table can be activated by pressing the lock-out reset button for
more than 3 seconds.
Error code table
Blink code
2 blinks **
No establishment of flame at the end of TSA
Faulty or soiled fuel valves
Faulty or soiled flame detector
Poor adjustment of burner, no fuel
Faulty ignition
3 blinks ***
Free
4 blinks ****
Extraneous light on burner startup
5 blinks *****
Free
6 blinks ******
Free
7 blinks *******
Too manny losses of fleme during operation
(limitattion og the number of repetitions)
Faulty or soiled fuel valves
Faulty or soiled flame detector
Poor adjustment of burner
8 blinks ********
Time supervision oil pre-heater
9 blinks *********
Free
10 blinks **********
Wiring error or internal error, output contacts
During the time the cause of fault is diagnosed, the control outputs are
deactivated.
Burner remains shut down
Fault status signal «AL» at terminal 10 is activated
The diagnosis of the cause of fault is quit and the burner switched on
again by resetting the burner control.
Press lock-out reset button for about 1 second (< 3 seconds).
Connection diagram and internal diagram
LMO14
μC control
EK1
μC1
LED
K1
K2
K3
2
10
8
1
kbr
SB
8
R
OW
W
OH
AL
N
Si
L
N
7130a01e/0700
LMO24 - LMO44
Possible cause
μC2
3
4
5
6
7
9
3
EK2
1
M
Z
BV1
EK1
LED
1
SB
R
W
Si
L
N
7130a02e/ 0700
Control sequence
LMO14
BV1
Only with LMO14.113A2: re-ignition
FSV
11
12
QRB
QRC
bl
sw
br
µC cont r ol
µC 1
K2
K1
K3
2
10
8
3
6
7
kbr
8
3
O W
O H
AL
N
Z
M
A´
A
B
R
W
SB
tw
OH
OW
M
t1
Z
t3
FS
t3n
Z
FS
7130d02e/0700
µC 2
FSV
K4
4
5
9
11
12
Q R B
EK2
BV2
Q R C
1
bl
sw
BV1
br
C
D
1
8
3
3
4
t3n
6
TSA
11
12
t3n
6
11
12
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