Error History; Error Classes - Siemens LMV37.4 Series Basic Documentation

Basic unit with integrated fuel-air ratio control for forced draft burner
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19 Error history

The LMV37.4 provides an error history in which the last 25 errors are stored. The first
entry represents the current error state and can also be «error-free», refer to Error code
list.
Error
Diagnostic
code
code
200 OFF
#

19.1 Error classes

The errors are subdivided into error classes, depending on the severity of the switch-off
response. The current error shows all classes. Only the errors of the most important
classes are included in the history.
Error class
Priority
0
Highest
1
2
3
4
5
6
Lowest
Basic documentation LMV37.4...
19 Error history
Meaning for the LMV37.4
LMV37.4 error-free
Meaning
Lockout
Safety shutdown with software reset
Undervoltage
Safety shutdown: Safety phase
Safety shutdown: Start prevention
Safety shutdown: Shutdown
Message without shutdown response
History
157/267
CC1P7546en
17.12.2018

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