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 # Internal error contact sampling
0 Stuck-at failure (pressure switch-min - X5-01.2)
1 Stuck-at failure (pressure switch-max / POC - X5-02.2)
2 Stuck-at failure (pressure switch valve proving - X9-04.2)
3 Stuck-at failure (air pressure - X3-02.1)
4 Stuck-at failure (fuel selection fuel 1 - X5-03.3)
5 Stuck-at failure (load controller on / off - X5-03.1)
6 Stuck-at failure (fuel selection fuel 0 - X5-03.2)
7 Stuck-at failure (safety loop / burner flange - X3-04.1, X3-03.1)
8 Stuck-at failure (safety valve - X6-03.3)
9 Stuck-at failure (ignition transformer - X4-02.3)
10 Stuck-at failure (fuel valve 1 - X8-02.1)
11 Stuck-at failure (fuel valve 2 - X7-01.3)
12 Stuck-at failure (pilot valve - X7-02.3)
13 Stuck-at failure (reset - X8-04.1)
106 Any # Internal error contact request
107 Any # Internal error contact request
108 Any # Internal error contact request
110 Any # Internal error voltage monitor test
111 Any # Power failure
Mains voltage is too low. The mains voltage must be 102-132 VAC. Once
the mains voltage returns to the required range, error code 112 will be
triggered. Reset the LMV3. Note: After recovering from this fault, the
fault history will only show error code 112, and the error code 111 will not
be shown.
112 0 Mains voltage recovery
No fault: This code is triggered when mains voltage recovers after being
too low (see error code 111).
113 Any # Internal error mains voltage supervision
115 Any # Internal error system counter
116 0 Designed lifetime exceeded (250,000 startups)
The LMV3 will still operate, but this fault cannot be reset and internal parts
of the LMV3 have exceeded their designed lifetime. It is recommended to
replace the LMV3.
105
1. Check the connections of the neutrals to all of the connected switches,
valves, etc.
2. The diagnostic code determines which terminal on the LMV3 has an
issue. Check for inductive loads that cause voltage to be present on the
terminal after the LMV3 de-energizes the terminal. If voltage exists on an
output terminal, such as a fuel valve, after the LMV3 de-energizes the
terminal, it will cause a fault. Voltage must drop to zero on the terminal
within about 10 ms after the terminal is de-energized.
If the fault occurs continuously, replace the LMV3.
If the fault occurs continuously, replace the LMV3.
Section 6 Page 17 SCC Inc.

Siemens LMV3 series Specifications

General

Brand	Siemens
Model	LMV3 series
Category	Control Unit
Language	English