30 Owner’s Manual for Power Zone Pro Sync
Troubleshooting
FAIL START SD Generator failed to start after preselected
number of attempts
REPLACE OIL WN Oil maintenance thresholds exceeded
REPLACE OIL FILTER WN Oil Filter maintenance thresholds exceeded
REPLACE SPARK PLUG WN Spark plug maintenance thresholds exceeded
REPLACE AIR FILTER WN Air filter maintenance thresholds exceeded
REPLACE BATTERY WN Battery maintenance thresholds exceeded
GENERAL SERV REQ WN General maintenance thresholds exceeded
XFER SWITCH UTIL MAINT WN Utility transfer switch maintenance thresholds
exceeded
XFER SWITCH GEN MAINT WN Generator transfer switch maintenance
thresholds exceeded
TASK TIMEOUT SD One or more firmware tasks have timed out -
Trips E-Stop circuit
TASK EXIT SD Main Controller operating system task exited
unexpectedly
HW OVERSPEED SHUTOFF SD Hardware overspeed circuit triggered - Trips E-
Stop Circuit
WATCHDOG RESET OCCURRED SD Microcontroller watchdog timed out and
generated a system reset
CHECKSTOP RESET OCCURRED SD Microcontroller internal fault generated a system
reset
SYSTEM RESET OCCURRED SD Microcontroller system reset line went active
MPS COMMS FAIL WN Ethernet communications lost with one or more
expected Main Controllers in an MPS
MPS OUT OF SERVICE WARNING WN Generator is out of service
MPS GEN ADDED WN New Main Controller discovered on the MPS
Ethernet bus
PLC GEN DISABLED WN This generator is disabled via a PLC program
running on it
CURRENT PROTECTION SD I
2
T current threshold exceeded
OVER CURRENT PROTECTION SD 300% rated current exceeded for ten seconds
ENGINE STALLED WN Engine stopped running unexpectedly -
Generator shuts down and restarts
STARTER NOT ENGAGED AL Cranking voltage profile indicates starter did not
engage
BOSCH THROTTLE STUCK SD Bosch actuator position does not reflect
commanded position
Alarm Display Text Type Alarm Description
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