LMV Series Technical Instructions
Document No. LV3-1000
SCC Inc. Page 1 Section 6
6-1: Troubleshooting Introduction
The LMV3 has an extensive list of fault codes to help clarify the nature of any fault. Section 6-2
describes every fault code in detail and gives guidance on how to correct it.
When a lockout occurs, the AZL will alternate between displaying “Loc:c” and “Loc:d”. The
number listed after “Loc:c” is the error code, and the number listed after “Loc:d” is the
diagnostic code. For example, an error code 3, diagnostic code 0 will alternate between
displaying “Loc:c: 3” and “Loc:d: 0”.
If a fault occurs that does not cause a lockout, the AZL will alternate between displaying “InF:c”
and “InF:d”. The number listed after “InF:c” is the error code, and the number listed after
“InF:d” is the diagnostic code. These faults are intended to provide the user information even
though a lockout did not occur.
The fault history is stored in the 700 set of parameters. The LMV3 stores the last 25 fault
codes:
Parameter 701 displays information about the current status of the LMV3.
Parameter 702 displays information about the most recent fault.
Parameter 703 displays information about the second most recent fault.
…
Parameter 725 displays information about the 24
th
most recent fault.
Each fault code listed has indexes that provide additional information about the fault:
Index 01 = Error code
Index 02 = Diagnostic code
Index 03 = Error class (not used in North America)
Index 04 = Phase
Index 05 = Start number
Index 06 = Load
Index 07 = Fuel (LMV36 only)
Often, index 05 and index 06 will display a value of “._._”. This means that the AZL display ran out of
room to display the start number or load. When this happens, hold down the info button to display the
value.
An example of how the AZL displays a fault code in the fault history is shown below:
Figure 6-1: LMV3 Fault History Example with Indexes
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