Siemens LMO14.111C2 - Diagnostics of Cause of Fault; Error Code Table

10/13
Building Technologies Division CC1N7130en
Infrastructure & Cities Sector 22.08.2013
Operation, display, diagnostics (cont´d)
After lockout, the red signal lamp (LED) remains steady on. In that condition, the visual
diagnostics of the cause of fault according to the error code table can be activated by
pressing the lockout reset button for more than 3 seconds. Pressing the reset button
again for at least 3 seconds, the interface diagnostics will be activated. Interface
diagnostics works only if the AGK20… lockout reset button extension is not fitted. If, by
accident, interface diagnostics has been activated, in which case the slightly red light of
the signal lamp flickers, it can be deactivated by pressing again the lockout reset button
for at least 3 seconds. The instant of switching over is indicated by a yellow light pulse.
The following sequence activates the diagnostics of the cause of fault:
EK
> 3 s
Flashing
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Error code table
EK
> 3 s
Interface diagnostics
PC / analyzer
OCI400
EK
< 3 s
7130z04e/0602
Reset
On
Visual diagnostics
Lockout position
Lockout position Lockout position
Error code table
Red blink code of signal
lamp (LED)
Alarm
(AL) at
term. 10
Possible cause
2 blinks On No establishment of flame at the end of safety
time (TSA)
- Faulty or soiled fuel valves
- Faulty or soiled flame detector
- Poor adjustment of burner, no fuel
- Faulty ignition equipment
3 blinks
On
Free
4 blinks
On
Extraneous light on burner startup
5 blinks
On
Free
6 blinks
On
Free
7 blinks
On
Too many losses of flame during operation
(limitation of the number of repetitions)
- Faulty or soiled fuel valves
- Faulty or soiled flame detector
- Poor adjustment of burner
8 blinks
On
Time supervision oil preheater
9 blinks
On
Free
10 blinks Off Wiring fault or internal fault, output contacts,
other faults
During the time the cause of fault is diagnosed, the control outputs are deactivated
burner remains shut down.
The diagnostics of the cause of fault is quit and the burner switched on again by
resetting the burner control. Press the lockout reset button for about 1 second (<3
seconds).
Diagnostics of the
cause of fault