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14 GE Zenith Controls
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ZTX Operation and Maintenance Manual (62
R-2000)
Troubleshooting
(cont’d)
Generator Failed to Start (
GFSTimeout)
2 Flashes + 2 Missing
Generator Under-Speed Fault 3 Flashes + 2 Missing
Generator Over-Speed Fault 4 Flashes + 2 Missing
Generator Over-Temperature Fault 5 Flashes + 2 Missing
Generator Low-Oil-Pressure Fault 6 Flashes + 2 Missing
Generator Fault Flash Table
NOTE: Faults that trigger the “original” SAG timer (emergency source not available for longer than the GS timer interval)
will continue to be indicated on the “Emergency Source”
LED at the original continuous 5 H
z rate.
Service must be performed by qualified personnel.
DANGER
HAZARDOUS VOLTAGE
(Can Cause Severe Injury or Death)
Turn OFF all power before installation, adjustment, or removal of transfer switch or any of its components.