Bentone BG650 - Control Diagnosis LGB Faults; Electric Equipment

21
Error code table
Blink code Possible cause
2 x • No establishment of flame at the end of «TSA»
•• - Faulty or soiled detector electrode
- Faulty or soiled fuel valves
- Poor adjustment of burner
3 x • Air pressure monitor does not close
••• - «LP» faulty
- «LP» incorrectly adjusted
- Fan motor does not run
4 x • Air pressure monitor does not open or extraneous
light on burner startup
•••• - «LP» faulty
- «LP» incorrectly adjusted
5 x • Extraneous light during pre-purging
••••• - Or internal device fault
7 x • Loss of flame during operation
••••••• - Poor adjustment of burner
- Faulty or soiled fuel valves
- Short-circuit between detector electrode and ground
8...17 x • Free
••••••••
..................
••••••••••
•••••••
18 x • Air pressure monitor opens during pre-purging or
operation
•••••••••• - «LP» incorrectly adjusted
•••••••• - Four times loss of flame during operation (LMG25)
19 x • Faulty output contact
•••••••••• - Wiring error
••••••••• - External power supply on output terminal
20 x • Internal device fault
••••••••••
••••••••••
172 425 57 08-01
ELECTRIC EQUIPMENT
Control diagnosis under fault conditions and lockout indication
Gas burner control: LMG ...
Diagnosis of cause of fault After lockout, the red fault LED is steady on. For reading the cause of fault,
refer to the blink code given in the following table:
During the time the cause of the fault
is diagnosed, the control outputs are
deactivated.
- The burner remains shut down
- Exception: fault status signal «AL»
at terminal 10
The burner is switched on only after
a reset is made.
- Press lockout reset button for
0.5...3 seconds
AL
FS
Red LED on
Blink code
LED on (waiting time 10 s)
Fault
Press lockout reset button
for > 3 s
Blink code
Off
Approx.
3 s
Connecting signal amplifier
A1 = LMG
GP
R/W
LN
br bl rt sw
sw rtQ1 = AGQ 2...
QRA
11112 2