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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