207/301
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
05 # BU Fault Flame Detector Test Fault during test of the flame signal am-
plifier
If fault occurs sporadically: Improve EMC
If fault occurs constantly: Replace flame detector or replace
defective basic unit
05 01 BU Fault Flame Detector Test Fault during test of the flame signal am-
plifier
05 02 BU Fault Flame Detector Test Crosstalk fault between test pin and
flame signal amplifier channel (with
LMV52... FSVchannel QRI... / QRB...)
05 03 BU Fault Flame Detector Test (Only LMV52...) crosstalk fault between
test pin and FSV channel ION
06 # BU Internal Fault Basic Unit Fault internal hardware tests *1)
06 01 BU Internal Fault Basic Unit Fault during test of the ignition relay
06 02 BU Internal Fault Basic Unit Fault during test of the safety relay
06 03 BU Internal Fault Basic Unit Fault during voltage supervision test
06 04 BU Internal Fault Basic Unit Relay voltage not switched off after reset
10 # BU Internal Fault Basic Unit Basic unit has detected an inadmissible
circuit at one of the outputs, a faulty di-
ode, or a short-circuit in the power supply
of the contact feedback network. The di-
agnostic codes indicates the input af-
fected
Check wiring of outputs, check connection of the neutral con-
ductor to the devices used.
The fault may be caused by capacitive loads which, with the
relay deenergized, are the reason the voltage takes more
than about 10 ms to drop to zero.
Check wiring to the load
*1)
10 01 BU Internal Fault Basic Unit Load controller on / off
10 02 BU Internal Fault Basic Unit Fan contact
10 03 BU Internal Fault Basic Unit Selection of oil-firing
10 04 BU Internal Fault Basic Unit Selection of gas-firing
10 05 BU Internal Fault Basic Unit Reset
10 06 BU Internal Fault Basic Unit Pressure switch oil maximum
10 07 BU Internal Fault Basic Unit Pressure switch oil minimum
To Next Page
Loading...
