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 # Safety loop / burner flange
0 Safety loop / burner flange open
1 Safety loop / burner flange open / prevention of startup
3 Safety loop / burner flange open, extraneous light - start prevention
5 Safety loop / burner flange open, air pressure - start prevention
7
Safety loop / burner flange open, extraneous light, air pressure - start
prevention
17 Safety loop / burner flange open, combustion pressure - start prevention
19
Safety loop / burner flange open, extraneous light, combustion pressure -
start prevention
21
Safety loop / burner flange open, air pressure, combustion pressure - start
prevention
23
Safety loop / burner flange open, extraneous light, air pressure, combustion
pressure - start prevention
65 Safety loop / burner flange open, POC - start prevention
67 Safety loop / burner flange open, extraneous light, POC - start prevention
69 Safety loop / burner flange open, air pressure, POC - start prevention
71
Safety loop / burner flange open, extraneous light, air pressure, POC - start
prevention
81
Safety loop / burner flange open, combustion pressure, POC - start
prevention
83
Safety loop / burner flange open, extraneous light, combustion pressure,
POC - start prevention
85
Safety loop / burner flange open, air pressure, combustion pressure, POC -
start prevention
87
Safety loop / burner flange open, extraneous light, air pressure, combustion
pressure, POC - start prevention
22
OFF S
A safety loop / burner flange fault occurred. Check all of the switches
wired into the safety loop (between terminals X3-04.1 and X3-04.2). This
also includes the burner flange circuit (between terminals X3-03.1 and X3-
03.2). One of the switches must have opened, causing the fault. Fix the
condition that caused the switch to open and reset the fault.
Diagnostic code 1 - A call for heat was received, but the LMV3 will not start
up due to a safety loop / burner flange fault.
Diagnostic codes 3 and larger - A call for heat was received, but the LMV3
will not start up due to a safety loop / burner flange fault. Other inputs
besides the safety loop and burner flange inputs are in the wrong state as
well. The diagnostic code calls out what other inputs are in the wrong
state.
Section 6 Page 6 SCC Inc.
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