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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
87
03 ABE Fault Feedback AZL5... No feedback for max. number
88 # All Plausibility fault NMT If fault occurs sporadically: Improve EMC
If fault occurs constantly: Replace defective AZL…(see diag-
nostic code) or basic unit
88 01 SA Fault Feedback Actuator Undefined fault class of SA
88 02 LC Fault Feedback Load Controller Undefined fault class of LC
88 03 ABE Fault Feedback AZL Undefined fault class of AZL
88 04 VDS module
Fault Feedback VSD Module Undefined fault class of VSD module
88 05 O2M Fault Feedback O2 Module Undefined fault class of O2 module
90 --- SA Fault Feedback Aux Actuator 3 Basic unit has detected a ROM-CRC er-
ror on the air actuator when checking its
feedback signal
Check CAN cabling and terminators as specified
If fault occurs sporadically: Improve EMC
If fault occurs constantly: Replace defective actuator
91 --- SA Fault Feedback Air Actuator Basic unit has detected a ROM-CRC er-
ror on the air actuator when checking its
feedback signal
Check CAN cabling and terminators as specified
If fault occurs sporadically: Improve EMC
If fault occurs constantly: Replace defective actuator
92 --- SA Fault Feedback Gas (Oil) Actuator Basic unit has detected a ROM-CRC er-
ror on the gas actuator when checking its
feedback signal
Check CAN cabling and terminators as specified
If fault occurs sporadically: Improve EMC
If fault occurs constantly: Replace defective actuator
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