Siemens LMV37.4 Series User Manual

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Building Technologies Basic documentation LMV37.4... CC1P7546en
29 Error code list (all LMV2 types / LMV3 types) 17.12.2018
Error
code
Diagnostic code Meaning for the LMV37.4 Recommended measures or causes
20 # Pressure switch-min
0 No minimum gas / oil pressure
Check wiring for line interruption
1 Gas shortage / prevention of startup
Check wiring for line interruption
21 # Pressure switch-max / POC
0
Pressure switch-max: Max. gas / oil pressure exceeded
POC: POC open (software version
 V02.00)
Check wiring to see if there is a line interruption.
POC: Check to see if the valve’s closing contact is closed
1 POC closed (software version  V02.00)
Check wiring.
Check if the valve closure contact opens when valve is controlled.
64 POC open –prevention of startup (software version  V02.00)
Check wiring.
Check if the valve closure contact opens when valve is controlled.
22 OFF S # Safety loop / burner flange
0 Safety loop / burner flange open
1 Safety loop / burner flange open / prevention of startup
3 Safety loop/burner flange, extraneous light – start prevention
5 Safety loop/burner flange, air pressure – start prevention
17
Safety loop/burner flange, combustion pressure – start
prevention
19
Safety loop/burner flange, extraneous light, combustion
pressure – start prevention
21
Safety loop/burner flange, air pressure, combustion pressure –
start prevention
23
Safety loop/burner flange, extraneous light, air pressure,
combustion pressure – start prevention
65 Safety loop/burner flange, POC – start prevention
67
Safety loop/burner flange, extraneous light, POC – start
prevention
69 Safety loop/burner flange, air pressure, POC – start prevention
71
Safety loop/burner flange, extraneous light, air pressure, POC
– start prevention
81
Safety loop/burner flange, combustion pressure, POC – start
prevention
83
Safety loop/burner flange, extraneous light, combustion
pressure, POC – start prevention
85
Safety loop/burner flange, air pressure, combustion pressure,
POC – start prevention
87
Safety loop/burner flange, extraneous light, air pressure,
combustion pressure, POC – start prevention
23 # Gas pressure switch-min / heavy oil direct start

Siemens LMV37.4 Series Specifications

General

Brand	Siemens
Model	LMV37.4 Series
Category	Controller
Language	English