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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
10 08 BU Internal Fault Basic Unit Pressure switch valve proving
10 09 BU Internal Fault Basic Unit Safety valve oil feedback
10 0A BU Internal Fault Basic Unit Fuel valve 1 oil feedback
10 0B BU Internal Fault Basic Unit Fuel valve 2 oil feedback
10 0C BU Internal Fault Basic Unit Fuel valve 3 oil feedback
10 0D BU Internal Fault Basic Unit Safety valve gas feedback
10 0E BU Internal Fault Basic Unit Fuel valve 1 gas feedback
10 0F BU Internal Fault Basic Unit Fuel valve 2 gas feedback
10 10 BU Internal Fault Basic Unit Fuel valve 3 gas feedback
10 11 BU Internal Fault Basic Unit Safety chain burner flange
10 12 BU Internal Fault Basic Unit Safety relay feedback
10 13 BU Internal Fault Basic Unit Pressure switch gas minimum
10 14 BU Internal Fault Basic Unit Pressure switch gas maximum
10 15 BU Internal Fault Basic Unit Ignition transformer feedback
10 16 BU Internal Fault Basic Unit Fan pressure switch
10 17 BU Internal Fault Basic Unit Start release oil
10 18 BU Internal Fault Basic Unit Heavy oil direct start
10 19 BU Internal Fault Basic Unit Load controller open
10 1A BU Internal Fault Basic Unit Load controller closed
10 1B BU Internal Fault Basic Unit Start release gas
11 01 BU Internal Fault Basic Unit Basic unit has detected a short-circuit in
the contact feedback network
*1)
15 # SA
VSD module
Fault Positioning Actuator
or
Fan Speed not reached
Basic unit has detected a positioning er-
ror on 1 / several actuators (incl. the VSD
module)
Check if actuator is overloaded.
If fault occurs sporadically: Improve EMC.
If fault occurs constantly: Replace the relevant actuators (re-
fer to diagnostic code).
15 01..3F SA Fault Positioning Actuator The diagnostic value is made up of the
following faults or their combinations (the
individual diagnostic codes are added up
in hexadecimal format)
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