Siemens LMV5 Series Basic Documentation page 232

Error Diagnostic Device
code code
D3 # O2
01
D3 O2
02
D3 O2
03
D3 O2
E1 - FuM
E3 - O2
F0 - BU
F1 # BU
01
F1 BU
02
F1 BU
03
F1 BU
04
F1 BU
05
F1 BU
06
F1 BU
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Siemens Building Technologies Basic Documentation LMV51...
HVAC Products 15 Addendum 1: List of fault status messages of LMV51... system
Display
Fault Feedback O2 Module Basic unit has detected a wrong stage of
the O2 module
Fault Feedback O2 Module CRC error
Fault Feedback O2 Module Key error main loop counter
Fault Feedback O2 Module No feedback for max. number
Fault Feedback VSD Module Basic unit has detected a ROM-CRC fault
in the VSD module when checking its
feedback signal
Fault Feedback O2 Module Basic unit has detected a ROM-CRC fault
in the O2 module when checking its
feedback signal
Internal Fault Basic Unit Plausibility fault during calculation of
interpolation values
Internal Fault Basic Unit Internal fault during calculation of
precontrol
Internal Fault Basic Unit
Internal Fault Basic Unit
Internal Fault Basic Unit
Internal Fault Basic Unit
Internal Fault Basic Unit
Internal Fault Basic Unit Internal fault calculation of precontrol.
Undefined value in the curves used for the
calculation
Meaning for the LMV5x system Troubleshooting
If fault occurs sporadically: Improve EMC.
If fault occurs constantly: Replace defective module
If fault occurs sporadically: Improve EMC.
If fault occurs constantly: Replace defective module
If fault occurs sporadically: Improve EMC.
If fault occurs constantly: Replace defective module
*1)
Check curve setting, check fuel parameters depending on
the selected type of fuel
CC1P7550en
01.10.2003