Troubleshooting & Diagnostics - GE ZTS Series Operation And Maintenance

Troubleshooting and Diagnostics
HAZARDOUS VOLTAGES CAN CAUSE SEVERE INJURY OR DEATH.
These charts may indicate problems that require authorized GE Zenith service personnel.
Hazardous voltages may exist on termination plugs other than those that go into the Entelli-Switch 250.
General Troubleshooting
The following troubleshooting guide is used to recognize,
and determine basic faults. When using this guide, it will
ask several questions about the condition of the switch.
This guide will then list an order of the possible faults.
You will then look at the first suspected fault to determine
if it is the problem. If it is not a fault, you go to the
Symptom Annunciation
Engine does not START SOURCE 2
AVAILABLE
LED off
Engine does not stop LCD Display -
"TD Engine Cool Down"
SOURCE 1 POSITION, and
SOURCE 1 and SOURCE 2
AVAILABLE LEDs on,
but U timer has timed out
ATS will not transfer SOURCE 2 AVAILABLE
to SOURCE 2 LED off
ZTG Series
None
LCD Display -
"S1 _ _ _ _ TD XFR S1>S2
Time Remaining _ _ _ _"
ATS will not transfer
LCD Display -
to SOURCE 1
"ATS Open
Time Remaining _ _ _ _"
ZTGD Series
SOURCE 1 AVAILABLE
LED off
None
LCD Display -
"Diagnostic Code 001"
LCD Display -
"S1 OK
Time Remaining _ _ _ _
LCD Display -
"ATS Open
Time Remaining _ _ _ _"
24
ZTS / ZTSD Operation and Maintenance Manual (71R-3000)
DANGER
second suspected fault. If you go through all of the
suspected faults, or the chart instructs you to, call
a GE Zenith Representative for further assistance.
NOTE
the Annunciation column refers to the
the control panel.
Possible Cause(s)
Engine start wires not
terminated properly
Generator is in OFF position
U timing cycle not complete
Engine start wires not
terminated correctly
Generator in MANUAL
SOURCE 2 voltage or frequency
not within acceptable parameters
Power supply connector unplugged
W timing cycle not complete
DW timing cycle not complete
SOURCE 1 voltage or frequency
not within acceptable parameters
Power supply connector unplugged
Limit switch or RT box
connector unplugged
T timing cycle not complete
Bypass"
TD timing cycle not complete
: When you use the troubleshooting charts,
Corrective Action
Check engine start connections
Investigate why Engine Control
Switch was turned off
Check U timer setting
Check Engine Start Connections
Place generator in AUTO
Check: Engine Start Connections,
Generator Breaker, Generator Output,
and Engine Control Switch
Plug in connector
Check W Timer setting
Check DW Timer setting
Check utility and utility breakers
Plug in connector
Call Technical Services
Check T Timer setting
Check DT Timer setting
's on
LED
Table 5
GE Zenith Controls