Siemens LMV 5 Series, Technical Instructions, Page: 257 / 374

Error
Code Diag.
Code
Device Display Meaning for the LMV5x System Corrective Action
Any #
AZL5Ihas detected own fault and reported it to the basic unit.
Type of fault: see diagnostic code.
01 CRC fault during ROM test
02 CRC fault during RAM test
03 Fault during stack test
04 Fault during key value check
05 Time block overflow
07 Sync fault or CRC fault
08 Fault main loop counter
09
Manual Lockout
AZL
Fault message for emergency off function via AZLI
This message is dispayed if escape and enter on the
AZL are pressed simulaneously, causing a manual
lockout. Can be reset normally.
0A Internal Fault AZL Invalid AZL5I page
1) If fault occurs sporadically: Reduce electrical noise.
2) If fault occurs constantly: Replace AZL5I
0B
>250,000
startups,
service required
250,000 cycles have been exceeded. Internal parts in the
LMV5.. are close to the end of their life.
Replace LMV5
0C Internal Fault AZL Save fault parameter
1) If fault occurs sporadically: Reduce electrical noise.
2) If fault occurs constantly: Replace AZL5I
0D
Menu for firing on
oil. Current Fuel
is Gas
Fuel changeover from oil to gas when an "oil only" menu is
being viewed.
0E
Menu for firing on
gas. Current Fuel
is Oil
Fuel changeover from gas to oil when a "gas only" menu is
being viewed.
15 CAN queue fault
16 CAN overflow fault
17
CANBus OFF. A CANBus user (actuators, O2 module)
switches the CANBus to OFF mode.
1) Check CANBus cabling. Ensure that all cable shields
(screens) which are located in the cable sheath are
terminated correctly at each actuator, O2 module, and
at the LMV5x...
2) Check each CANBus connector to ensure proper
termination (no conductors exposed on the back of the
plug)
3) Check the wiring of the CANBus power supply (12
VAC transformer). Ensure that fuses FU2 and FU3 are
not blown. Ensure that the CANBus power supply is not
overloaded (too many actuators on CANBus)
Fault with AZL5…
Internal Fault AZL
Escape out of current menu, or change the fuel that is
selected.
1) If fault occurs sporadically: Reduce electrical noise.
2) If fault occurs constantly: Replace AZL5I
A7 AZL5
Internal Fault AZL
1) Check CANBus cabling. Ensure that all cable shields
(screens) which are located in the cable sheath are
terminated correctly at each actuator, O2 module, and
at the LMV5x...
2) Check each CANBus connector to ensure proper
termination (no conductors exposed on the back of the
plug)
3) If fault occurs sporadically: Reduce electrical noise.
4) If fault occurs constantly: Replace AZL5...
Section 7 Page 49 SCC Inc.
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