Siemens LME44.056A2 - Fault Diagnostics; Error Code Diagnostics

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Building Technologies CC1N7101en
HVAC Products 27.11.2008
Operation, indication, diagnostics (cont´d)
After lockout, the red fault signal lamp LED will remain steady on. In that condition,
visual diagnostics of the cause of fault according to the error code table can be acti-
vated by pressing the lockout reset button for more than 3 seconds. Pressing the reset
button again for at least 3 seconds, 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 LED 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
7101z04e/0305
Reset
On
Visual diagnostics
Lockout position
Lockout position Lockout position
Error code table
Red blink code of
signal lamp (LED)
«AL» at
term. 10
Possible cause
2 blinks On 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 equipment
3 x blinks On «LP» faulty
- Loss of
air pressure signal after «t10»
- «LP» is welded in normal position
4 blinks On Extraneous light when burner startup
5 blinks On Time out «LP»
- «LP» is welded in working position
6 blinks On Free
7 blinks On Too many losses of flame during operation
(limitation of repetitions)
- Faulty or soiled fuel valves
- Faulty or soiled flame detector
- Poor adjustment of burner
8 x blinks On Free
9 blinks On Free
10 blinks Off Wiring error or internal error, output contacts,
other faults
14 blinks On CPI contact not closed
During the time the cause of fault is diagnosed, the control outputs are deactivated
- Burner remains shut down
- External fault indication remains deactivated
- Fault status signal «AL» at terminal 10, according to the error code table
The diagnostics of the cause of fault is quit and the burner switched on again by reset-
ting the burner control. Press the lockout reset button for about 1 second (< 3 seconds).
Diagnostics of the cau-
se of fault