Siemens LMV5 Series Basic Documentation page 223

Error Diagnostic Device
code code
A6 EF LC
A6 F0 LC
A6 F1 LC
A6 F2 LC
A6 F3 LC
A6 F4 LC
A6 F5 LC
A6 F6 LC
A6 FE LC
A6 FF LC
A7 # AZL
A7 01 AZL
A7 02 AZL
A7 04 AZL
A7 05 AZL
A7 07 AZL
A7 08 AZL
A7 09 AZL
A7 0A AZL
A7 0B AZL
A7 0C AZL
A7 0D AZL
A7 0E AZL
A7 15 AZL
A7 16 AZL
A7 17 AZL
Siemens Building Technologies Basic Documentation LMV51...
HVAC Products 15 Addendum 1: List of fault status messages of LMV51... system
Display
Internal Fault Load Controller Invalid branch in eeprom module()
Internal Fault Load Controller Fault during ROM test
Internal Fault Load Controller Fault during RAM test
Internal Fault Load Controller Fault during RAM test, register bank 0
Internal Fault Load Controller Fault during RAM test, IDATA range
Internal Fault Load Controller Fault during RAM test, XDATA range
Internal Fault Load Controller Stack pointer does not point at stack
Internal Fault Load Controller Stack overflow
Internal Fault Load Controller Fault messages in fault management
Internal Fault Load Controller Fault messages in fault management
AZL5...has detected own fault and
reported it to the basic unit.
Type of fault: See diagnostic code
Internal Fault AZL CRC fault during ROM test
Internal Fault AZL CRC fault during RAM test
Internal Fault AZL Fault during key value check
Internal Fault AZL Time block overflow
Internal Fault AZL Sync fault or CRC fault
Internal Fault AZL Fault main loop counter
Manual Lockout AZL Fault message for emergency off function
via AZL...
Internal Fault AZL Invalid AZL5... page
>250,000 startups, service required
Internal Fault AZL Save fault parameter
Menu for Oil. Current Fuel is Gas Fuel changeover from oil to gas
Menu for Gas. Current Fuel is Oil Fuel changeover from gas to oil
Internal Fault AZL CAN queue fault
Internal Fault AZL CAN overflow fault
Internal Fault AZL CAN busoff
Meaning for the LMV5x system Troubleshooting
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Observe instructions given below, and:
If fault occurs sporadically: Improve EMC.
If fault occurs constantly: Replace defective AZL...
Change to menu "GasSettings"
Change to menu "OilSettings"
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CC1P7550en
01.10.2003