Siemens LMV3 series User Manual

Error
Code
Diag.
Code
Meaning for the LMV3 System Corrective Action
Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes.
Any # Error relay supervision
3 External power supply NO contact (ignition transformer - X4-02.3)
4 External power supply NO contact (fuel valve 1 - X8-02.1)
5 External power supply NO contact (fuel valve 2 - X7-01.3)
6 External power supply NO contact (pilot valve - X7-02.3)
Any # Error relay supervision
3 Relay contacts have welded (ignition transformer)
4 Relay contacts have welded (fuel valve 1)
5 Relay contacts have welded (fuel valve 2)
6 Relay contacts have welded (pilot valve)
Any # Error relay supervision
0
Safety relay contacts have welded or external power supply fed to safety
relay
Any # Error relay supervision
2 Relay does not pull in (safety valve - X6-03.3)
3 Relay does not pull in (ignition transformer - X4-02.3)
4 Relay does not pull in (fuel valve 1 - X8-02.1)
5 Relay does not pull in (fuel valve 2 - X7-01.3)
6 Relay does not pull in (pilot valve - X7-02.3)
Any # Internal error relay control If the fault occurs continuously, replace the LMV3.
3 Internal error relay control
On software version V03.10, if this error occurs during standardization of
the VSD, temporarily deactivate the alarm in the case of start prevention
(set parameter 210 = 0), reset the fault, and re-standardize. Otherwise, if
the fault occurs continuously, replace the LMV3.
100 Any # Internal error relay control If the fault occurs continuously, replace the LMV3.
95
96
97
99
98 If the fault occurs continuously, replace the LMV3.
Check for voltage feeding back on the output given by the diagnostic code.
Fix the wiring error / defective component causing the voltage feedback
and reset the fault.
Remove the wire from fan output terminal X3-05.1 and perform the
following two tests:
1. With power connected to the LMV3 and the LMV3 in standby, ensure
there is no voltage on fan output X3-05.1.
2. With no power connected to the LMV3, ensure there is no continuity
between fan output X3-05.1 and neutral.
If either test fails, replace the LMV3. If both tests are passed, reset the
fault.
Section 6 Page 16 SCC Inc.

Siemens LMV3 series Specifications

General

Brand	Siemens
Model	LMV3 series
Category	Control Unit
Language	English