
219/301
Siemens Building Technologies
Basic Documentation LMV5...
CC1P7550en
HVAC Products
16 Addendum 1: List of fault status messages of LMV5... system
13.08.2004
Error
code
Diagnostic
code
Device
Display
Meaning for the LMV5x system
Troubleshooting
43
09
BU
Internal Fault Basic Unit
Safety time 1 oil too long
43
0A
BU
Internal Fault Basic Unit
Ignition off time > TSA1 gas
43
0B
BU
Internal Fault Basic Unit
Ignition off time > TSA1 oil
43
0C
BU
Internal Fault Basic Unit
Safety time 2 gas too long
43
0D
BU
Internal Fault Basic Unit
Safety time 2 gas too long
44
#
BU
Fault at deactivated inputs
Deactivate input or do not connect
44
01
BU
Controller connected but deacti-
vated
Controller input connected but deacti-
vated
44
02
BU
Air Press Switch connected but
deactivated
APS connected but deactivated
44
03
BU
FCC / FGR – APS connected but
deactivated
FCC / FGR – APS connected but deacti-
vated
44
04
BU
Gas Pressure min connected but
deactivated
GP-Min connected but deactivated
44
05
BU
Gas Pressure max connected but
deactivated
GP-Max connected but deactivated
44
06
BU
Oil Pressure min connected but
deactivated
OP-Min connected but deactivated
44
07
BU
Oil Pressure max connected but
deactivated
OP-Max connected but deactivated
44
08
BU
Start Signal Oil connected but de-
activated
Start signal oil connected but deactivated
44
09
BU
HO Start connected but deacti-
vated
HO start connected but deactivated
44
0A
BU
Start Signal Gas connected but
deactivated
Start signal gas connected but deacti-
vated
45
---
BU
Locked by SLT
Shutdown via SLT test
SLT was activated and safety shutdown was triggered (usu-
ally via the SLT)
46
#
BU
Programstop active
Program stop was activated. System has
stopped at the parameterized position
Deactivate the program stop if no longer required
46
01
BU
Programstop active
Program stop "STOP_DR_PREP" in
Phase 24 active